Re: [Elecraft] Concentric knobs??
Hi Vic, Thank you for this "demonstration". In my case, for little enclosures used with optical encoders, for delivery delay reasons, the factory don't execute the post molding process, (some heating with a well defined temp=f(time) profile. The contract or shrink (tnx to Terry, K4RX) was not done before assembly. Between 1 or 2 months after, ~75% of the enclosure were broken... My best 73, Rudi, HB9ARI On 24.06.2011 18:02, Vic K2VCO wrote: > This happened more than 30 years ago so I can tell the story. I worked at a > kibbutz > factory in Israel where we made plastic faucets by injection molding. The > correct > adjustment of the temperature profile of the molding cycle was critical to > many > characteristics of the finished parts. > > Our engineer was going to Germany to demonstrate some products, so we > carefully tested his > samples so that he would not be embarrassed in front of the quality-conscious > Germans. > > At the demonstration, he turned the knob on the hot-water side of the faucet: > snap. Then > he tried the cold-water side: snap. Both stems broke off neatly inside the > faucet! > > The German engineers were not amused. Ultimately we learned how to adjust the > molding > machines properly! > > On 6/24/2011 7:12 AM, hb9ari wrote: >> Hello Guy, >> >> I think that you have found the good explanation! >> >> May be some of these knobs don't get a correct or sufficient pre-aging (?) >> procedure before leaving the factory; at my QRL pro, we get this kind >> of problem with molded plastic enclosure breaking some time after >> they were bee assembled. >> >> In French, we are speaking of "retrait" but i don't find >> the correct translation! >> >> My best 73, >> Rudi, HB9ARI __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Concentric knobs??
Hi Terry, Thank you for the translation ! Correct, opposite of "expand". My best 73, Rudi, HB9ARI On 24.06.2011 16:25, Terry Posey wrote: > Retrait = contract or shrink (the opposite of "expand") > > 73, Terry K4RX > > > -Original Message- > From: elecraft-boun...@mailman.qth.net > [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of hb9ari > Sent: Friday, June 24, 2011 10:13 AM > To: Elecraft-forum > Subject: Re: [Elecraft] Concentric knobs?? > > > Hello Guy, > > I think that you have found the good explanation! > > May be some of these knobs don't get a correct or sufficient pre-aging (?) > procedure before leaving the factory; at my QRL pro, we get this kind > of problem with molded plastic enclosure breaking some time after > they were bee assembled. > > In French, we are speaking of "retrait" but i don't find > the correct translation! > > My best 73, > Rudi, HB9ARI > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Concentric knobs??
Hello Guy, I think that you have found the good explanation! May be some of these knobs don't get a correct or sufficient pre-aging (?) procedure before leaving the factory; at my QRL pro, we get this kind of problem with molded plastic enclosure breaking some time after they were bee assembled. In French, we are speaking of "retrait" but i don't find the correct translation! My best 73, Rudi, HB9ARI On 23.06.2011 19:31, Guy Olinger K2AV wrote: > Having managed to break a few myself (have to remind myself I'm not > rebuilding an auto engine), I think what is going on is that the knobs > are (or were) still curing, causing them to shrink a tiny bit after > being tightened on the shaft. > > I think the curing accelerates after being put on the radio because > they have free air around them, instead of being in a bin or box. I > found the screws TIGHTER a week after I put the knobs on. I simply > loosened and retightened them to "pinky torque" and no problems since. > > Pinky torque is to use your pinky ONLY as pressure on the allen wrench > when tightening. One probably does not even need that much. > > 73, Guy. > > On Thu, Jun 23, 2011 at 1:46 AM, hb9ari wrote: >> Hi Brian, >> >> Thank you for the reply. >> As i bought an assembled K3, i don't >> tighten the screws. >> As Tim explained in his message, this "problem" >> was present sometimes in a particular batch. >> >> I will send an email to the "parts" department. >> >> My best 73, >> Rudi, HB9ARI >> >> >> >> On 23.06.2011 00:50, Brian Maynard wrote: >>> I had the same problem at the time I built K3 #4974. Elecraft sent >>> replacements right away (the usual excellent service), and coached me not to >>> over tighten the set screws (two per knob). The knobs are pretty soft and >>> deform easily if over tightened. >>> >>> - >>> Brian, op K1NW >>> -- >>> View this message in context: >>> http://elecraft.365791.n2.nabble.com/Concentric-knobs-tp6502754p6506455.html >>> Sent from the Elecraft mailing list archive at Nabble.com. >>> __ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft@mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >> __ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft@mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Concentric knobs??
Hi Brian, Thank you for the reply. As i bought an assembled K3, i don't tighten the screws. As Tim explained in his message, this "problem" was present sometimes in a particular batch. I will send an email to the "parts" department. My best 73, Rudi, HB9ARI On 23.06.2011 00:50, Brian Maynard wrote: > I had the same problem at the time I built K3 #4974. Elecraft sent > replacements right away (the usual excellent service), and coached me not to > over tighten the set screws (two per knob). The knobs are pretty soft and > deform easily if over tightened. > > - > Brian, op K1NW > -- > View this message in context: > http://elecraft.365791.n2.nabble.com/Concentric-knobs-tp6502754p6506455.html > Sent from the Elecraft mailing list archive at Nabble.com. > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Concentric knobs??
Hi Bill, rr , i will ask to Elecraft for new "external" knob(s). Just looking for something to order for my K3... My best 73, Rudi, HB9ARI On 22.06.2011 18:29, Bill W4ZV wrote: > wayne burdick wrote: >> This should *never* happen. If you email k3support you'll get >> replacements immediately. >> > ...just to define "immediately". Ordered a set of knobs on Monday morning > and they were in my mailbox today (Wednesday morning). Kudos to Elecraft > and the US Postal Service's First Class Mail. > > 73, Bill > > > -- > View this message in context: > http://elecraft.365791.n2.nabble.com/Concentric-knobs-tp6502754p6504988.html > Sent from the Elecraft mailing list archive at Nabble.com. > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Concentric knobs??
Hello Tim, Thank you for your message and "parts" email address. As my number is #1212, it's certainly the same batch ! Have a nice day. 73 QRO, Rudi, HB9ARI On 23.06.2011 00:50, Tim Heasman wrote: > Hi Rudi, > Just send an e-mail to pa...@elecraft.com with the serial number of > your K3, and they will send you a new set of knobs for af and rf > controls. There was a lot of trouble with broken knobs with the first > batch of K3s. Mine is s/n 1245 and I have had to replace mine. > 73 > Tim > GM4LMH > > > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Concentric knobs??
Hi Buck, Thank you for this information ! As these knobs are hard to find in EU (may be impossible...?), i will send a note to Elecraft. I will wait to add an order to this request... 73 QRO, Rudi, HB9ARI PS I had this same "problem" on an oscilloscope many years ago.. Seems to be the "thin"plastic wall for locking screw ? On 22.06.2011 17:13, Buck - k4ia wrote: > They had trouble with some of the early knobs. Elecraft will send you > replacements at no charge. Just send them a note. > Buck > k4ia > > On 6/22/2011 2:16 AM, hb9ari wrote: >> Hello, >> >> I also have a "problem" with concentric knobs.(K3 #1212) >> An external one was broken since the beginning. >> The 1st time i move it, he was slipping over the shaft; >> as it's related to the sub-receiver, i don't ask for a new one. >> >> The only annoying problem i get since some time is an >> unstable contact at the rear line-out min-jack (3.5mm) connector. >> (i suspect the audio input too) As the #1212 is out of warranty, >> i've planned to find a more reliable solution, excluding these >> 2 mini-jacks. One of my task during next vacations ( in 3 weeks) >> >> Otherwise, always 100% fan of my K3 ! >> >> 73 QRO, >>Rudi, HB9ARI >> >> >> >> >> On 22.06.2011 05:06, tomb18 wrote: >>> Ok, >>> >>> I have found my first glitch with the K3. The concentric knob holes are so >>> out of round that I cannot get the knobs to work unless the smaller one is >>> way above the other. Is this a problem with my knobs or are they all like >>> that? When all is said and done, I paid over 5k for this radio and the knobs >>> are really poor whereas everything else is top notch. >>> If they are all like that, are there alternatives that look the same? >>> >>> Thanks >>> >>> -- >>> View this message in >>> context:http://elecraft.365791.n2.nabble.com/Concentric-knobs-tp6502754p6502754.html >>> Sent from the Elecraft mailing list archive at Nabble.com. >>> __ >>> Elecraft mailing list >>> Home:http://mailman.qth.net/mailman/listinfo/elecraft >>> Help:http://mailman.qth.net/mmfaq.htm >>> Post:mailto:Elecraft@mailman.qth.net >>> >>> This list hosted by:http://www.qsl.net >>> Please help support this email list:http://www.qsl.net/donate.html >> __ >> Elecraft mailing list >> Home:http://mailman.qth.net/mailman/listinfo/elecraft >> Help:http://mailman.qth.net/mmfaq.htm >> Post:mailto:Elecraft@mailman.qth.net >> >> This list hosted by:http://www.qsl.net >> Please help support this email list:http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Concentric knobs??
Hello, I also have a "problem" with concentric knobs.(K3 #1212) An external one was broken since the beginning. The 1st time i move it, he was slipping over the shaft; as it's related to the sub-receiver, i don't ask for a new one. The only annoying problem i get since some time is an unstable contact at the rear line-out min-jack (3.5mm) connector. (i suspect the audio input too) As the #1212 is out of warranty, i've planned to find a more reliable solution, excluding these 2 mini-jacks. One of my task during next vacations ( in 3 weeks) Otherwise, always 100% fan of my K3 ! 73 QRO, Rudi, HB9ARI On 22.06.2011 05:06, tomb18 wrote: > Ok, > > I have found my first glitch with the K3. The concentric knob holes are so > out of round that I cannot get the knobs to work unless the smaller one is > way above the other. Is this a problem with my knobs or are they all like > that? When all is said and done, I paid over 5k for this radio and the knobs > are really poor whereas everything else is top notch. > If they are all like that, are there alternatives that look the same? > > Thanks > > -- > View this message in context: > http://elecraft.365791.n2.nabble.com/Concentric-knobs-tp6502754p6502754.html > Sent from the Elecraft mailing list archive at Nabble.com. > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Suggestions for 10 MHz Signal Source for the K3?
Hi John, I'm using a G3RUH GPSDO for PC time setting and external 10MHz reference, BUT not connected to my K3. I'm very satisfied with it. I've not used this source for the K3, because i will not use the "uCrtlr counting" method of "lock". Not sure if they are no phase jump with this procedure? If a loop locked external reference would be used, i certainly had connected the GPSDO. I can understand that a "bad" external reference would lower the very good phase noise figure of the K3. My best 73, Rudi, HB9ARI On 21.06.2011 07:55, John Bekema wrote: > Hi, > > Would this be interesting? > > http://www.jrmiller.demon.co.uk/projects/ministd/frqstd.htm > > OH2GBA, > John > > 2011/6/21 David and Dianne on Comcast: >> Hi Everyone, >> >> I am considering a K3EXREF just for fun, no other >> reason. >> >> Looking for suggestions for a reasonably priced 10 >> MHz external signal source. >> >> Can anyone offer some suggestions? GPSDO? OCXO? >> Rubidium Standard? >> >> I have seen some used Trimble Thunderbolt GPSDO's >> on eBay form China. I'm just not sure about the >> wisdom of ordering any of these units. >> >> Suggestions would be appreciated on or off the list. >> >> 73 de N1LQ-Dave > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 Intermittently loses gain
Hi Ron, Hi had a similar problem some months ago. Symptoms: Suddenly loss of sensitivity ~ -20 to -40dB or more... Transmission was always ok. Measurement with miniVNA always correct (at ~0dBm power). Moving some connections remove sometimes the loss of sensitivity. (but all soldered or crimped connections were tested as 100% ok, no "cold" solder joint, or broken wire, etc) After searching a lot of time, i suspected "old" silvered connectors, plugs, etc Changing all connectors with non silvered ones, all is now perfect! My explanation, accepted by other OM, is the following: My "old" idea, (ham since 1970) was that silver oxide was conducting, may be true, but over an (undefined for the moment...) level. In RX mode, in the uV range, i suppose that the potential is insufficient to break the ultra thin sliver oxide layer. With 0dBm or more "level", the oxide layer should be broken and all is ok. If i'm correct , some mechanicals relays are not specified under some voltage levels and to commutate very low voltages, some "special" kind of metal contacts must be used. Since this "incident" ALL silvered plated connectors, plug, etc are banned from the shack ! I never had problem since i've taken this decision. My best 73, Rudi, HB9ARI Ron W3ZV wrote: > Started to play in the CQWWSSB. K3 started to exhibit intermittent loss > of gain after a transmission. Sometimes, stomping on the foot switch > brings it back up. Sometimes it takes a short transmission. No real > pattern to when it occurs. Receiver isn't totally deaf. Just way down. > Any ideas as to where the problem might be? I'm guessing its time for > the radio to take a trip home to the left coast. > > Ron W3ZV > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] P3 and KRX3
David, I would appreciate this kind of operation! I my case, specially to monitor 6m activity (all modes) when working JT65 on other bands. For me, as i'm transmitting with a low percentage, no necessity to have monitor function active during transmit; KRX3 can be totally muted (as i suppose main receiver...) 73 QRO, Rudolf, HB9ARI David Gilbert wrote: > Has there been any conclusions on whether Elecraft will offer the > necessary upgrades to allow the P3 to work with the KRX3? If so, any > likely time frame? > > a. Hardware mod for the K3 to bring out the IF of the KRX3 with > suitable isolation from the main receiver. > > b. Software mod for the P3 to track the KRX3. > > This seems like a no-brainer from an operating point of view ... operate > on one band using the main receiver while monitoring another band with > the KRX3/P3. > > 73, > Dave AB7E > > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3: Added protection for RS-232 port (summary)
Ok Pete ! Have a nice day. 73, Rudolf Pete Smith wrote: > Glad you found it useful, Rudolph. It will be important with this > unit that the chassis of your computer is well grounded to the same > reference point as the chassis of your transceiver, because Tripp Lite > says that the incoming pulse is diverted to ground through the cable > to the computer end. > > 73, Pete N4ZR > > The World Contest Station Database, updated daily at > www.conteststations.com > The Reverse Beacon Network at http://reversebeacon.net, blog at > reversebeacon.blogspot.com, > spots at telnet.reversebeacon.net, port 7000 > > > On 7/19/2010 5:02 PM, hb9ari wrote: >> Pete, >> >> The "Tripp-Lite DB9" seems to be a good solution! >> No work necessary inside the K3. >> Will find a representative in Switzerland or do >> a direct order. >> >> Thanks for valuable information! >> >> Best 73, >> >> Rudolf, HB9ARI >> >> Pete Smith wrote: >> >>> Thanks to the Elecrafters who responded with a raft of good ideas. >>> That >>> included W8JI, W4TV, K9YC, W9AC, N7MG, NN4X, KX4O, W3FPR, and AI4VZ >>> (more or less in the order in which they responded. I hope I have >>> understood and can render all the input correctly >>> >>> Consensus seems to be that grounding, particularly making sure that all >>> chassis are bonded together with the station entry panel and the >>> powerline ground, is the best protection. I think this likely is where >>> I went wrong, because I had just completed the radio and had not yet >>> grounded it to my station bus, which is 3/4" copper pipe behind the >>> radios, wired to the station entry panel with heavy copper. As I write >>> this I'm in the midst of going through my station to make sure that >>> everything is properly grounded. >>> >>> Several people provided ideas for component level protection, but W9AC >>> found the Tripp-Lite DB9, which is a nicely packaged in-line protector >>> that (they say) use "balanced arrays of high-speed avalanche diodes" to >>> shunt the energy to ground. At $20 including shipping (Newegg was the >>> cheapest I found) it can't hurt. I probably couldn't build it that >>> cheaply, and it might help, particularly in combination with the >>> grounding improvements. >>> >>> >>> >> __ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft@mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> >> >> > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3: Added protection for RS-232 port (summary)
Pete, The "Tripp-Lite DB9" seems to be a good solution! No work necessary inside the K3. Will find a representative in Switzerland or do a direct order. Thanks for valuable information! Best 73, Rudolf, HB9ARI Pete Smith wrote: > Thanks to the Elecrafters who responded with a raft of good ideas. That > included W8JI, W4TV, K9YC, W9AC, N7MG, NN4X, KX4O, W3FPR, and AI4VZ > (more or less in the order in which they responded. I hope I have > understood and can render all the input correctly > > Consensus seems to be that grounding, particularly making sure that all > chassis are bonded together with the station entry panel and the > powerline ground, is the best protection. I think this likely is where > I went wrong, because I had just completed the radio and had not yet > grounded it to my station bus, which is 3/4" copper pipe behind the > radios, wired to the station entry panel with heavy copper. As I write > this I'm in the midst of going through my station to make sure that > everything is properly grounded. > > Several people provided ideas for component level protection, but W9AC > found the Tripp-Lite DB9, which is a nicely packaged in-line protector > that (they say) use "balanced arrays of high-speed avalanche diodes" to > shunt the energy to ground. At $20 including shipping (Newegg was the > cheapest I found) it can't hurt. I probably couldn't build it that > cheaply, and it might help, particularly in combination with the > grounding improvements. > > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3: Added protection for RS-232 port
Hi Pete, I will look around U1 on the KIO3A! Never had an RS232 failure since >30y and never disconnect them when not in use... only when connecting an other device... I always thought it was a "relatively" robust interface! Thanks for info! 73 QRO, Rudolf, HB9ARI (K3 #1212) Pete Smith wrote: > Don, I have read several reports on this list of RS-232 failures > (probably implicating U1 on the KIO3A) apparently due to induced > voltage. My comment was based more on my having used radios with serial > ports for some 15 years and never had any problem with the ports, > despite leaving serial cables connected all the time. Elecraft advised > me always to disconnect any cable from the RS-232 port on my K3 when not > in use, from which I inferred fragility. > > Anyway, the point is that I'm ready to add some protection, if I can > figure out how to do it. > > 73, Pete N4ZR > > The World Contest Station Database, updated daily at www.conteststations.com > The Reverse Beacon Network at http://reversebeacon.net, blog at > reversebeacon.blogspot.com, > spots at telnet.reversebeacon.net, port 7000 > > > On 7/18/2010 10:31 PM, Don Wilhelm wrote: > >> Pete, >> >> I am not certain why you believe the K3 RS-232 port to be "fragile". >> I have not seen a large number of failures identified on this reflector. >> There have been quite a number of users who have had problems with USB >> to RS-232 adapters, but that is not a failure of the K3 RS-232 port. >> >> Can you give me some examples of RS-232 port failures on the K3? >> >> 73, >> Don W3FPR >> >> Pete Smith wrote: >> >>> I've been thinking about how one might go about adding some >>> protection for the apparently fragile (and expensive) RS-232 port on >>> the K3. It might be possible, if the components were small enough, >>> to add them on the KIO3 I/O daughterboard, or perhaps on a little >>> external board mounted at the port. >>> >>> But the question is, what components? I have seen small gas tube >>> units, but suspect that by the time the potential reaches 90 volts or >>> so and the tube flashes over, the RS-232 transceiver is probably >>> toast anyway. Would it be feasible to use fast diodes to shunt the >>> data lines to ground at .7 volts or so, or would that introduce other >>> problems (stray capacitance, etc.)? Anything else that might make >>> sense? >>> >>> >> > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 Sub-receiver use
Hi Guy, All OK ! Effectively, i don't envisage to "look" for 50MHz activity on the P3 during transmitting on lower bands. I will look at the K3 schematics how are switched antennas, KAT3, KRX3, etc. I'm not 100% ok with all these connections for the moment... and how TX/RX switching is done... I've the KAT3 installed and i'm using ANT2 input for 50MHz antenna. I think that P3 "monitoring" can be useful also for K144XV or external transverter users on higher bands where some "nice" apertures can appears. Thank you to you, Guy, and all OM for very good informations and help in my choice! 73 QRO, Rudolf, HB9ARI Guy Olinger K2AV wrote: > Yeah, > > The rub is getting Wayne to add an option that will look at the subRX > for the P3 interface functions. Think you might get what you're > asking for. > > Others are asking for that to be switchable back and forth between the > two *dynamically*. This involves both IF's and allows for signals in > the IF of one RX to be heard in the other. This would a switch with > 100 dB isolation. It would be an expensive option, plus some > significant new code. Don't think this complexity is commercially > feasibility. > > BTW, none of this would allow the subRX to listen while transmitting. > They are all in the same box and running full duplex will require > circuits with isolations in the 140, 150 dB range to work right. > Talking about military applications, and very expensive radios for > that kind of thing. > > 73, Guy. > > On Mon, May 31, 2010 at 3:04 AM, hb9ari wrote: > >> Hi Guy, >> >> It's that way i was thinking to use the P3! >> -1- ALWAYS on the sub-receiver output. >> -2- ALWAYS on a separated antenna. >> >> My idea was to externally switch the 6m >> (or internally if possible?) antenna from >> K3 sub-rcvr to main RF when some activity >> was "detected" on th P3. When "working" >> on 6m, no necessity, (always speaking >> for me..) to "monitor" a 10 to 20m band! >> >> In my case, as i'm very space limited, >> no room for a 2nd 10 to 20m separated >> antenna for diversity... >> But a separated 6m antenna is feasible. >> (for the moment, i use only a vertical for >> 6m, no DX, but not too bads QSO) >> >> >> 73, >> >> Rudolf, HB9ARI >> >> Guy Olinger K2AV wrote: >> >>> The trick involved in that switch is a very high isolation between the >>> two IF's (RXA and RXB) currently very nicely highly isolated. If that >>> is degraded, then one starts hearing in one receiver the contents of >>> the other. Not at all a trivial modification, as high isolation >>> switches are not cheap. So I suspect dynamically selecting display on >>> one RX or the other has a big price tag to it. And perhaps has an >>> internal space price to it. >>> >>> I would think, however, that when installing a sub-RX, that perhaps it >>> could be cabled and the K3 options set to use the sub-RX on the P3 all >>> the time, WITHOUT opening the pandora's box of high-isolation >>> switching of RX IF's. This would be in the same vein as choosing the >>> RX paths when installing the sub-RX to start with. Without the time >>> to think that through carefully, I'd currently chose that were it >>> available. >>> >>> 73, Guy. >>> >>> On Wed, May 26, 2010 at 12:29 PM, Radio Amateur N5GE wrote: >>> >>> >>>> On Tue, 25 May 2010 21:25:15 -0700, Alan Bloom >>>> wrote: >>>> >>>> Ouch! >>>> >>>> Does this mean that the P3 will not display the frequency of or the >>>> signals seen by the KRX3? >>>> >>>> If that is true, it is a show stopper for me. >>>> >>>> TOM, N5GE BT 73 ES GUD LUK >>>> AR DE N5GE SK >>>> >>>> http://www.n5ge.com >>>> >>>> >>>> >>>>> Yes, the P3 assumes it is connected to the main receiver's IF output, so >>>>> if it is actually connected to the sub-RX it would still work but would >>>>> not display the correct frequencies and levels. If this becomes popular >>>>> enough maybe we should think about adding sub-RX support to P3 firmware. >>>>> >>>>> Alan N1AL >>>>> >>>>> >>>>> >>>> [snip] >>>> >>>> _
Re: [Elecraft] K3 Sub-receiver use
Hi Guy, It's that way i was thinking to use the P3! -1- ALWAYS on the sub-receiver output. -2- ALWAYS on a separated antenna. My idea was to externally switch the 6m (or internally if possible?) antenna from K3 sub-rcvr to main RF when some activity was "detected" on th P3. When "working" on 6m, no necessity, (always speaking for me..) to "monitor" a 10 to 20m band! In my case, as i'm very space limited, no room for a 2nd 10 to 20m separated antenna for diversity... But a separated 6m antenna is feasible. (for the moment, i use only a vertical for 6m, no DX, but not too bads QSO) 73, Rudolf, HB9ARI Guy Olinger K2AV wrote: > The trick involved in that switch is a very high isolation between the > two IF's (RXA and RXB) currently very nicely highly isolated. If that > is degraded, then one starts hearing in one receiver the contents of > the other. Not at all a trivial modification, as high isolation > switches are not cheap. So I suspect dynamically selecting display on > one RX or the other has a big price tag to it. And perhaps has an > internal space price to it. > > I would think, however, that when installing a sub-RX, that perhaps it > could be cabled and the K3 options set to use the sub-RX on the P3 all > the time, WITHOUT opening the pandora's box of high-isolation > switching of RX IF's. This would be in the same vein as choosing the > RX paths when installing the sub-RX to start with. Without the time > to think that through carefully, I'd currently chose that were it > available. > > 73, Guy. > > On Wed, May 26, 2010 at 12:29 PM, Radio Amateur N5GE wrote: > >> On Tue, 25 May 2010 21:25:15 -0700, Alan Bloom >> wrote: >> >> Ouch! >> >> Does this mean that the P3 will not display the frequency of or the >> signals seen by the KRX3? >> >> If that is true, it is a show stopper for me. >> >> TOM, N5GE BT 73 ES GUD LUK >> AR DE N5GE SK >> >> http://www.n5ge.com >> >> >>> Yes, the P3 assumes it is connected to the main receiver's IF output, so >>> if it is actually connected to the sub-RX it would still work but would >>> not display the correct frequencies and levels. If this becomes popular >>> enough maybe we should think about adding sub-RX support to P3 firmware. >>> >>> Alan N1AL >>> >>> >> [snip] >> >> __ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft@mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> >> > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] P3 IF frequency
Hi Ken rr ! I was not 100% sure ! But if modification is feasible, P3 will be better at K3's side! 73 QRO, Rudolf, HB9ARI Ken Kopp wrote: > The P3 IF input -is- user-defined and can be between > 455 kHz and 21.7 mHz. The full specs of the P3 are > on the Elecraft website. > > 73! Ken Kopp - K0PP > elecraftcov...@rfwave.net > > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 Sub-receiver use
Hi Alan, No more a "dream" for me ! If i dare, you can put me on the list! 73 QRO, Rudolf, HB9ARI PS Excuse me for my bad mood ! I "love" too much MY K3... Alan Bloom wrote: > Yes, the P3 assumes it is connected to the main receiver's IF output, so > if it is actually connected to the sub-RX it would still work but would > not display the correct frequencies and levels. If this becomes popular > enough maybe we should think about adding sub-RX support to P3 firmware. > > Alan N1AL > > > On Tue, 2010-05-25 at 23:50 -0400, Guy Olinger K2AV wrote: > >> Wouldn't there be a K3 interoperating with P3 firmware issue with >> running the P3 on the sub-RX? Just because you could feed a >> **stand-alone** box with a non-company mod for sub-RX IF, does not >> mean the P3 would change the sub-RX with a click on the P3. There is a >> lot of proprietary communication between the K3 and the P3 over the >> serial connection. >> >> Wouldn't a sub-RX feed to a P3 need to be specifically supported by >> Elecraft firmware, both in K3 and P3? Last remarks from them in this >> thread were negative, particularly about isolation at a switch. >> >> That aside, I believe someone using the sub-RX with the TX in split, >> while leaving the main RX to feed the P3, would accomplish the same >> end. This WOULD be a problem on other rigs where the second RX is an >> inferior RX, or not available. In the K3 the sub-RX is a fully equal >> clone of the main RX, making various A/B flippity-do tricks possible >> without sacrificing performance in any way. >> >> 73, Guy. >> >> On Tue, May 25, 2010 at 9:48 PM, Alan Bloom wrote: >> >>> Hi Rudolf, >>> >>> At the bottom of this message I will copy a posting from W3SZ on the >>> LP-PAN email list that describes how he added IF output to his K3 >>> sub-receiver. He used the Z1 buffer amp from Clifton Labs: >>> http://www.cliftonlaboratories.com/z1_buffer_amp.htm >>> >>> If you don't mind modifying your K3, it looks like that should allow you >>> to use the sub-receiver with a P3. When I get time I'll have to try it >>> on my K3 and see how it works. >>> >>> Alan N1AL >>> >>> >>> >>> On Tue, 2010-05-25 at 22:01 +0200, hb9ari wrote: >>> >>>> Hi Rich, >>>> >>>> Very bad news ! >>>> >>>> That was my 1st idea when ordering the P3 >>>> to use it for "wide" span use for phone mode. >>>> (50Mhz in priority during possible "apertures") >>>> For digi mode, as JT65, the ~2kHz width >>>> of "waterfall" is 100% sufficient, because >>>> frequencies are well defined (for ex 14.076Mhz) >>>> I'm quite sure now that it was a bad idea to have ordered >>>> a P3 but, with your accurate explanation, i will >>>> renounce to the sub-receiver ordering (and >>>> roofing filters)! >>>> >>>> I regret that a P3 connection to the sub-rcvr >>>> is not possible, and, as i'm not an RF engineer, >>>> i don't understand the reason(s)! >>>> >>>> At my point of vue, it's not 100% correct to say that >>>> the KRX3 is like a 2nd receiver ! >>>> >>>> Just in time to stop for the KRX3 ordering but for the P3... >>>> may be eBay ? >>>> >>>> My best 73, >>>> Rudolf, HB9ARI >>>> >>> >>> >>> Forwarded Message >>> From: w3sz >>> Reply-to: lp-...@yahoogroups.com >>> To: lp-...@yahoogroups.com >>> Cc: w...@comcast.net >>> Subject: [LP-PAN] KRX3 IF tap up and running >>> Date: Fri, 02 Jan 2009 00:56:35 -0500 >>> >>> Hi Larry, >>> >>> I didn't get a chance to hook up the LP-Pans yet [because the audio >>> cables I need are up at my hilltop QTH], but I did install the KRX3 >>> and its Z1 buffer amp, and both the main K3 IF output and the KRX3 >>> subreceiver IF output seem to be working fine. I ran the main IF to >>> the main receiver on my Flex5000 and the KRX3 subIF to the subreceiver >>> on the Flex5000. >>> >>> Everything seems to be OK in terms of how I chose to get the IF from the >>> KRX3. >>> >>> I am working a long day tomorrow as well as Saturday AM, but I am >>&
Re: [Elecraft] K3 Sub-receiver use
Hi Mark, A very good new ! As answered to Alan, i will read these info and a great attention to your uploaded notes! Many thanks for sharing your experiences ! If there are no performances degradation on the main rcvr (IF feed trough, etc) i'm ready to envisage the "jump" ! 73 QRO Rudolf, HB9ARI Mark n2qt wrote: > Rudolf, > > I used the info provided by W3SZ successfully and uploaded pictures > and notes to > the files section that may help you plan the modifications. > http://groups.yahoo.com/group/Elecraft_K3/files/KRX3_IF_Out/addSubRX_IF.txt > > > It works well! > > Mark n2qt > > > - Original Message - From: "Alan Bloom" > To: "hb9ari" > Cc: "Elecraft-forum" > Sent: Tuesday, May 25, 2010 9:48 PM > Subject: Re: [Elecraft] K3 Sub-receiver use > > >> Hi Rudolf, >> >> At the bottom of this message I will copy a posting from W3SZ on the >> LP-PAN email list that describes how he added IF output to his K3 >> sub-receiver. He used the Z1 buffer amp from Clifton Labs: >> http://www.cliftonlaboratories.com/z1_buffer_amp.htm >> >> If you don't mind modifying your K3, it looks like that should allow you >> to use the sub-receiver with a P3. When I get time I'll have to try it >> on my K3 and see how it works. >> >> Alan N1AL >> >> >> >> On Tue, 2010-05-25 at 22:01 +0200, hb9ari wrote: >>> Hi Rich, >>> >>> Very bad news ! >>> >>> That was my 1st idea when ordering the P3 >>> to use it for "wide" span use for phone mode. >>> (50Mhz in priority during possible "apertures") >>> For digi mode, as JT65, the ~2kHz width >>> of "waterfall" is 100% sufficient, because >>> frequencies are well defined (for ex 14.076Mhz) >>> I'm quite sure now that it was a bad idea to have ordered >>> a P3 but, with your accurate explanation, i will >>> renounce to the sub-receiver ordering (and >>> roofing filters)! >>> >>> I regret that a P3 connection to the sub-rcvr >>> is not possible, and, as i'm not an RF engineer, >>> i don't understand the reason(s)! >>> >>> At my point of vue, it's not 100% correct to say that >>> the KRX3 is like a 2nd receiver ! >>> >>> Just in time to stop for the KRX3 ordering but for the P3... >>> may be eBay ? >>> >>> My best 73, >>> Rudolf, HB9ARI >> >> >> >> Forwarded Message >> From: w3sz >> Reply-to: lp-...@yahoogroups.com >> To: lp-...@yahoogroups.com >> Cc: w...@comcast.net >> Subject: [LP-PAN] KRX3 IF tap up and running >> Date: Fri, 02 Jan 2009 00:56:35 -0500 >> >> Hi Larry, >> >> I didn't get a chance to hook up the LP-Pans yet [because the audio >> cables I need are up at my hilltop QTH], but I did install the KRX3 >> and its Z1 buffer amp, and both the main K3 IF output and the KRX3 >> subreceiver IF output seem to be working fine. I ran the main IF to >> the main receiver on my Flex5000 and the KRX3 subIF to the subreceiver >> on the Flex5000. >> >> Everything seems to be OK in terms of how I chose to get the IF from >> the KRX3. >> >> I am working a long day tomorrow as well as Saturday AM, but I am >> hoping to get a chance to run up to the hilltop and pick up the audio >> cables and then get the LP Pans hooked up Saturday afternoon. >> >> This is a brief summary of what I did with the KRX3: >> >> I used the Z1 as buffer amp inside the KRX3. >> >> I got +12V from a 12SA pad near to P86A. >> Power and RF connections to the Z1 were done from the underside of >> the Z1. >> >> I took IF output from KRX3 from P86A and used RG174U to take this to >> input of Z1. >> >> I mounted Z1 on an unused FL position using a 1/2 inch standoff. >> >> I mounted a dual female SMA connector in the REF hole at the bottom >> corner of the K3 just below the official IF out BNC. I then used a >> right angle premade small surplus coaxial cable to take the signal to >> the KRX3 and thus the Z1. >> >> I entered the KRX3 at the back left corner opposite to J92, because >> there was already an opening there. >> >> I ran the coax inside the KRX3 bottom shell, beneath the main KRX3 >> PCB. I brought it up to the Z1 by running it through an unused >> hole meant for an FL standoff.
Re: [Elecraft] K3 Sub-receiver use
Hi Alan, If modifications are not too "heavy", it's not a problem; but i don't like to take the risk of performances degradation of the "initial" configuration. That's the reason the 1st time i've opened my K3 was for recent 8poles filter installation and removing of original 2k7 5poles. No risk for performance degradation! For the 6m occasional phone use during "apertures" i would not get lower perf on other bands, used over 95% of time, and where i'm totally satisfied. Nevertheless, i will read the informations you have communicated with great interest. In any case, as the IF input frequency is SW defined, i can use the ordered P3 with an other rig (with compatible IF output or "modified"). To conclude this thread, i must admit that MY error was to think that IF output (for the P3 in this case) was selectable between 2 "identical" receivers Main and Sub Should have read better the docs and related infos! My best 73, Rudolf, HB9ARI PS It's not my "habit" to cancel an order (when it's possible) when i do a bad choice! I assume! In this case, the P3 is not a "bad" choice but i will use it in a different manner, until a "supported" modification? Alan Bloom wrote: > Hi Rudolf, > > At the bottom of this message I will copy a posting from W3SZ on the > LP-PAN email list that describes how he added IF output to his K3 > sub-receiver. He used the Z1 buffer amp from Clifton Labs: > http://www.cliftonlaboratories.com/z1_buffer_amp.htm > > If you don't mind modifying your K3, it looks like that should allow you > to use the sub-receiver with a P3. When I get time I'll have to try it > on my K3 and see how it works. > > Alan N1AL > > > > On Tue, 2010-05-25 at 22:01 +0200, hb9ari wrote: > >> Hi Rich, >> >> Very bad news ! >> >> That was my 1st idea when ordering the P3 >> to use it for "wide" span use for phone mode. >> (50Mhz in priority during possible "apertures") >> For digi mode, as JT65, the ~2kHz width >> of "waterfall" is 100% sufficient, because >> frequencies are well defined (for ex 14.076Mhz) >> I'm quite sure now that it was a bad idea to have ordered >> a P3 but, with your accurate explanation, i will >> renounce to the sub-receiver ordering (and >> roofing filters)! >> >> I regret that a P3 connection to the sub-rcvr >> is not possible, and, as i'm not an RF engineer, >> i don't understand the reason(s)! >> >> At my point of vue, it's not 100% correct to say that >> the KRX3 is like a 2nd receiver ! >> >> Just in time to stop for the KRX3 ordering but for the P3... >> may be eBay ? >> >> My best 73, >> Rudolf, HB9ARI >> > > > > Forwarded Message > From: w3sz > Reply-to: lp-...@yahoogroups.com > To: lp-...@yahoogroups.com > Cc: w...@comcast.net > Subject: [LP-PAN] KRX3 IF tap up and running > Date: Fri, 02 Jan 2009 00:56:35 -0500 > > Hi Larry, > > I didn't get a chance to hook up the LP-Pans yet [because the audio > cables I need are up at my hilltop QTH], but I did install the KRX3 > and its Z1 buffer amp, and both the main K3 IF output and the KRX3 > subreceiver IF output seem to be working fine. I ran the main IF to > the main receiver on my Flex5000 and the KRX3 subIF to the subreceiver > on the Flex5000. > > Everything seems to be OK in terms of how I chose to get the IF from the KRX3. > > I am working a long day tomorrow as well as Saturday AM, but I am > hoping to get a chance to run up to the hilltop and pick up the audio > cables and then get the LP Pans hooked up Saturday afternoon. > > This is a brief summary of what I did with the KRX3: > > I used the Z1 as buffer amp inside the KRX3. > > I got +12V from a 12SA pad near to P86A. > Power and RF connections to the Z1 were done from the underside of > the Z1. > > I took IF output from KRX3 from P86A and used RG174U to take this to > input of Z1. > > I mounted Z1 on an unused FL position using a 1/2 inch standoff. > > I mounted a dual female SMA connector in the REF hole at the bottom > corner of the K3 just below the official IF out BNC. I then used a > right angle premade small surplus coaxial cable to take the signal to > the KRX3 and thus the Z1. > > I entered the KRX3 at the back left corner opposite to J92, because > there was already an opening there. > > I ran the coax inside the KRX3 bottom shell, beneath the main KRX3 > PCB. I br
Re: [Elecraft] K3 Sub-receiver use
Hi Mike, Same answer as for Steve, as IF input of P3 should be software defined, i could use it with a dedicated 6m rig. 73 QRO, Rudolf, HB9ARI K2MK wrote: > Hi Rudolf: > > You should be able to stop the P3. They are not starting shipments of > the P3 until 15 July. > > 73, > Mike K2MK > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 Sub-receiver use
Hi Steve, A lot of money hi ! As the P3's IF should be software defined, i could use it with an other rig, where an IF output is installed or a modification easily feasible. I've connected the PR6 on my K3, and RX have done some comparisons with my "old" FT857 WITHOUT preamp sharing the same antenna and including the splitter losses; results are not so good... On all other bands, i'm 100% satisfied with my K3 (#1212) and would never change! I will look for a 6/2/0.7m TXRX may be with a pre-installed IF compatible with the P3. 73 QRO, Rudolf, HB9ARI S Sacco wrote: > Rudolph - > > The P3 is not yet shipping; you should easily be able to cancel your > order for itunless you bought ANOTHER K3, and used that only for > 6M! Then you could use the P3 with that rig! > > > 73, > Steve > NN4X > > On Tue, May 25, 2010 at 4:01 PM, hb9ari wrote: > >> Hi Rich, >> >> Very bad news ! >> >> That was my 1st idea when ordering the P3 >> to use it for "wide" span use for phone mode. >> (50Mhz in priority during possible "apertures") >> For digi mode, as JT65, the ~2kHz width >> of "waterfall" is 100% sufficient, because >> frequencies are well defined (for ex 14.076Mhz) >> I'm quite sure now that it was a bad idea to have ordered >> a P3 but, with your accurate explanation, i will >> renounce to the sub-receiver ordering (and >> roofing filters)! >> >> I regret that a P3 connection to the sub-rcvr >> is not possible, and, as i'm not an RF engineer, >> i don't understand the reason(s)! >> >> At my point of vue, it's not 100% correct to say that >> the KRX3 is like a 2nd receiver ! >> >> Just in time to stop for the KRX3 ordering but for the P3... >> may be eBay ? >> >> My best 73, >> Rudolf, HB9ARI >> >> Richard Ferch wrote: >> >>> If the P3 gets its signal from the IF out connector on the KXV3 (or >>> KXV3A), then it will not work with the subRX; the IF out connection from >>> the KXV3 is from the main receiver only. I seem to recall reading posts >>> from someone who had done some surgery on his KRX3 in order to create a >>> similar IF output from the KRX3 for use with an external panadapter, so >>> it's not beyond the realm of possibility, but you may not be able to do >>> it with an unmodified K3. I would love to find out that I am wrong on >>> this, by the way! At any rate, this is a point worth pursuing directly >>> with Elecraft before laying out cash for a KRX3 and P3 with the >>> intention of using them together. >>> >>> 73, >>> Rich VE3KI >>> __ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft@mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> >>> >>> >> __ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft@mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> >> > > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 Sub-receiver use
Hi Rich, Very bad news ! That was my 1st idea when ordering the P3 to use it for "wide" span use for phone mode. (50Mhz in priority during possible "apertures") For digi mode, as JT65, the ~2kHz width of "waterfall" is 100% sufficient, because frequencies are well defined (for ex 14.076Mhz) I'm quite sure now that it was a bad idea to have ordered a P3 but, with your accurate explanation, i will renounce to the sub-receiver ordering (and roofing filters)! I regret that a P3 connection to the sub-rcvr is not possible, and, as i'm not an RF engineer, i don't understand the reason(s)! At my point of vue, it's not 100% correct to say that the KRX3 is like a 2nd receiver ! Just in time to stop for the KRX3 ordering but for the P3... may be eBay ? My best 73, Rudolf, HB9ARI Richard Ferch wrote: > If the P3 gets its signal from the IF out connector on the KXV3 (or > KXV3A), then it will not work with the subRX; the IF out connection from > the KXV3 is from the main receiver only. I seem to recall reading posts > from someone who had done some surgery on his KRX3 in order to create a > similar IF output from the KRX3 for use with an external panadapter, so > it's not beyond the realm of possibility, but you may not be able to do > it with an unmodified K3. I would love to find out that I am wrong on > this, by the way! At any rate, this is a point worth pursuing directly > with Elecraft before laying out cash for a KRX3 and P3 with the > intention of using them together. > > 73, > Rich VE3KI > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 Sub-receiver use
Hi Doug, Thank you for your reply ! As answered to Richard, i've done the bad choice when ordering a P3! My "bad" idea was to connect him to a "future" KRX3 !! Fortunately it was not too late to stop my order ! But for the P3... My best 73, Rudolf, HB9ARI Doug Joyce wrote: > Rudolf: The IF output from the K3 is from the main receiver not the > sub receiver. If you check back in the archives, there are some > articles relating to getting an IF sample from the Sub RX. > > 73, Doug VE3MV > K3/100 s/n 2432 > > > - Original Message - From: "hb9ari" > To: "Elecraft-forum" > Sent: Tuesday, May 25, 2010 5:52 AM > Subject: [Elecraft] K3 Sub-receiver use > > >> Hello, >> >> Before to order a sub-receiver for my K3 (#1212), >> i would know if the primary use i've envisaged is possible: >> >> RX/TX on main receiver on 20m for example, with >> output power between 5 and 75W (JT65A mainly). >> Sometimes, the auto-tuner in the K3 is used. >> >> RX on sub-receiver for 6m on a separated antenna, >> (Preampli 6m Elecraft ON or OFF) and IF output to >> the (ordered ) P3 for band monitoring. >> >> Thank you for information, because i'm not >> clear with hardware and firmware version >> necessary for this "dual" band use. >> >> My best 73, >> Rudolf, HB9ARI >> >> >> >> __ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft@mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> > > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 Sub-receiver use
Hi Pete, Thank you for your quick reply. I my case, no problem if SubRcvr is muted during Main Transmit; most of time, i'm in RX with JT65A. My best 73, Rudolf, HB9ARI Pete Smith wrote: > I thought that the sub-RX was muted any time that the transmitter is > active - not so? > > 73, Pete N4ZR > > The World Contest Station Database, updated daily at www.conteststations.com > The Reverse Beacon Network at http://reversebeacon.net, blog at > reversebeacon.blogspot.com > > > On 5/25/2010 8:35 AM, Bill VanAlstyne W5WVO wrote: > >> Hi Rudolph, >> >> I am someone who also works 20m JT65A on 14076 and 6 meters, mostly FSK441 >> meteor scatter and of course SSB/CW sporadic-E when it's happening -- and if >> I had a KRX3 second receiver, that's exactly how I would use mine. As far as >> I know, that configuration is quite possible. I do also have a DCI 8-pole 6m >> bandpass filter inline with my PR6 preamp, which would be protected thereby >> from the HF transmit signal field. I don't know if the filter is strictly >> necessary while using the K3 to transmit at basically QRP levels of<75W. >> But with the DCI filter, it should be no problem for the 6m receive chain. >> >> I'm not going to be in a position any time soon to get the KRX3, but when I >> do, that's how I will be using it mostly. I'm looking forward to hearing >> confirmation from others that this configuration will work. >> >> Bill W5WVO >> >> PS -- Will be looking for you on 14076 JT65A -- need your country on that >> mode/band. >> >> -- >> From: "hb9ari" >> Sent: Tuesday, May 25, 2010 3:52 AM >> To: "Elecraft-forum" >> Subject: [Elecraft] K3 Sub-receiver use >> >> >> >>> Hello, >>> >>> Before to order a sub-receiver for my K3 (#1212), >>> i would know if the primary use i've envisaged is possible: >>> >>> RX/TX on main receiver on 20m for example, with >>> output power between 5 and 75W (JT65A mainly). >>> Sometimes, the auto-tuner in the K3 is used. >>> >>> RX on sub-receiver for 6m on a separated antenna, >>> (Preampli 6m Elecraft ON or OFF) and IF output to >>> the (ordered ) P3 for band monitoring. >>> >>> Thank you for information, because i'm not >>> clear with hardware and firmware version >>> necessary for this "dual" band use. >>> >>> My best 73, >>> Rudolf, HB9ARI >>> >>> >>> >>> __ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft@mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> >>> >>> >>> >> __ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft@mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> >> >> >> > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 Sub-receiver use
Hi Bill, Thank you for your reply and info ! Good idea to use filtering on 6m ! For the moment, i was looking for 6m phone, it's why a "wide" band survey is useful. But digi mode can be envisaged. My best 73, Rudolf, HB9ARI PS Hope to meet you for HB9 on 20m JT65A ! During last week-end, i made my 1st QSO with Hawaii (KH6OO) on 20m JT65A Ready from my "camping" site(QRZ.com) from Wednesday evening to Sunday afternoon. Bill VanAlstyne W5WVO wrote: > Hi Rudolph, > > I am someone who also works 20m JT65A on 14076 and 6 meters, mostly > FSK441 meteor scatter and of course SSB/CW sporadic-E when it's > happening -- and if I had a KRX3 second receiver, that's exactly how I > would use mine. As far as I know, that configuration is quite > possible. I do also have a DCI 8-pole 6m bandpass filter inline with > my PR6 preamp, which would be protected thereby from the HF transmit > signal field. I don't know if the filter is strictly necessary while > using the K3 to transmit at basically QRP levels of <75W. But with the > DCI filter, it should be no problem for the 6m receive chain. > > I'm not going to be in a position any time soon to get the KRX3, but > when I do, that's how I will be using it mostly. I'm looking forward > to hearing confirmation from others that this configuration will work. > > Bill W5WVO > > PS -- Will be looking for you on 14076 JT65A -- need your country on > that mode/band. > > -- > From: "hb9ari" > Sent: Tuesday, May 25, 2010 3:52 AM > To: "Elecraft-forum" > Subject: [Elecraft] K3 Sub-receiver use > >> Hello, >> >> Before to order a sub-receiver for my K3 (#1212), >> i would know if the primary use i've envisaged is possible: >> >> RX/TX on main receiver on 20m for example, with >> output power between 5 and 75W (JT65A mainly). >> Sometimes, the auto-tuner in the K3 is used. >> >> RX on sub-receiver for 6m on a separated antenna, >> (Preampli 6m Elecraft ON or OFF) and IF output to >> the (ordered ) P3 for band monitoring. >> >> Thank you for information, because i'm not >> clear with hardware and firmware version >> necessary for this "dual" band use. >> >> My best 73, >> Rudolf, HB9ARI >> >> >> >> __ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft@mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> >> > > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 Sub-receiver use
Hello, Before to order a sub-receiver for my K3 (#1212), i would know if the primary use i've envisaged is possible: RX/TX on main receiver on 20m for example, with output power between 5 and 75W (JT65A mainly). Sometimes, the auto-tuner in the K3 is used. RX on sub-receiver for 6m on a separated antenna, (Preampli 6m Elecraft ON or OFF) and IF output to the (ordered ) P3 for band monitoring. Thank you for information, because i'm not clear with hardware and firmware version necessary for this "dual" band use. My best 73, Rudolf, HB9ARI __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] RX Filter selection
Hello, An Happy New Year ! After selection in Config Menu FLx ON/OFF, the new choice work, but only 1 time; after, each filter is selectable when activating the XFIL button; i want to exclude the 2.7kHz (i've a 2.8kHz one) from the list, but it reappear. Any idea ? TNX for a reply. 73 QRO, Rudi, HB9ARI __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 Production Firmware Release (3.63)
Don, Thank you for your quick reply. I will leave the default setting to SPI1 as explained and load the new firmware. May be the hardware mod(s) during this Winter... My best 73, Rudolf HB9ARI Don Wilhelm wrote: > Rudolf, > > Yes, you can safely upgrade without adding hardware mods. > You must leave CONFIG: VFO MD set to SPI1 (default) until after the K3 > VFO Noise Reduction Mod has been installed. > That mod is not difficult - just 2 diodes and 2 resistors (all leaded > parts). > > 73, > Don W3FPR > > hb9ari wrote: >> Hello, >> >> Since ~ 1 year, i 've not upgraded the firmware. >> (K3#1212) should be 2.56 ??? (i'm at office...) >> >> My question: As i've never done hardware >> modifications, can the FW 3.63 be installed >> without problem? >> >> Thank you for your help! >> >> 73 QRO fr Rudolf, HB9ARI >> >> __ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft@mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> >> >> >> No virus found in this incoming message. >> Checked by AVG - www.avg.com Version: 9.0.709 / Virus Database: >> 270.14.78/2521 - Release Date: 11/23/09 02:52:00 >> >> > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 Production Firmware Release (3.63)
Hello, Since ~ 1 year, i 've not upgraded the firmware. (K3#1212) should be 2.56 ??? (i'm at office...) My question: As i've never done hardware modifications, can the FW 3.63 be installed without problem? Thank you for your help! 73 QRO fr Rudolf, HB9ARI __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] OT (sked W6NIA private email undeliverable)
Hi Matt, I tried this week-end to send an email at your private address for a sked, but delivery failed. I you want, you can write at my private address (hb9ari) for a sked with "HB9" next week-end. 73 QRO, Rudi "...get on the air. I also have not worked HB-land on JT65." PS73 to all and sorry for OT bandwidth/data volume! __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] JT65A output power variations
Hi Matt, I've tried to use LP-Bridge with PowerSDR-IF (and LP-Pan) but with some losses of communication after some time; for this reason, i use HRD with Power-SDR without "lock" during many hours ( waiting for 50MHz "apertures" during Summer...). 73 QRO, Rudolf Matt Zilmer wrote: > You could also use LP Bridge to share the serial port at the K3 among > several programs running on your PC. This works quite well. > > 73, > matt W6NIA > > On Thu, 12 Nov 2009 16:34:04 +0100, you wrote: > > >> Julian, >> >> I will look if this connection don't interfere with other programs >> and if ok, i will use it! >> >> Thanks for info! >> >> 73, Rudolf >> >> >> Julian, G4ILO wrote: >> >>> hb9ari wrote: >>> >>> >>>> DATA A is perfectly usable with VOX: i will migrate to this mode >>>> >>>> >>>> >>>> >>> But there is no reason to use VOX for any digimode. WSJT supports PTT >>> control. You have a fully wired serial cable connecting the PC and K3 which >>> allows you to use it. The K3 is not like other radios that requires a >>> transistor switch driven by the com port to do PTT. >>> >>> Just select the com port for PTT control in WSJT and select RTS in the K3 >>> PTT menu. >>> >>> - >>> Julian, G4ILO. K2 #392 K3 #222. >>> * G4ILO's Shack - http://www.g4ilo.com >>> * KComm - http://www.g4ilo.com/kcomm.html >>> * KTune - http://www.g4ilo.com/ktune.html >>> >>> >>> >> __ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft@mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> > > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] JT65A output power variations
Julian, I will look if this connection don't interfere with other programs and if ok, i will use it! Thanks for info! 73, Rudolf Julian, G4ILO wrote: > > hb9ari wrote: > >> DATA A is perfectly usable with VOX: i will migrate to this mode >> >> >> > But there is no reason to use VOX for any digimode. WSJT supports PTT > control. You have a fully wired serial cable connecting the PC and K3 which > allows you to use it. The K3 is not like other radios that requires a > transistor switch driven by the com port to do PTT. > > Just select the com port for PTT control in WSJT and select RTS in the K3 > PTT menu. > > - > Julian, G4ILO. K2 #392 K3 #222. > * G4ILO's Shack - http://www.g4ilo.com > * KComm - http://www.g4ilo.com/kcomm.html > * KTune - http://www.g4ilo.com/ktune.html > > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] JT65A output power variations
Hello, Many thanks to Julian, Lance, Matt, Richard, Ken, Joe and Lyle for interesting considerations derived from my "JT65 output power variations" subject! To conclude, DATA A is perfectly usable with VOX: i will migrate to this mode Compression is not recommended: i never use it From my side i will (re)verify the following points: -1- Use of 8poles 2.8kHz for TX -2- TX EQ set to "flat" -3- Soundcard output level ~ constant (i've done that as 1st searching procedure but to reverify...) TNX one more time and 73, Rudolf PS (OT) Matt, for me, West Coast contacts were done on 14MHz or 18MHz between 15:00 and 18:00 UTC (when conds were good!). For me, when i'm ready at my shack and if conds seems good, i can e-mail to your private address; i'm internet ready with a wireless modem, slow but usable. Matt Zilmer wrote: > OK Rudolf or Rudi (for JT65), > > I don't know what date to suggest for a schedule. If you keep me in > mind and let me know what band you'll be on (and when), I'll try to > get on the air. I also have not worked HB-land on JT65. > > I have you in monitoring log at SNR -26, which is workable - or at > least it was on that night. > > :) > > 73, > matt W6NIA > K3 #24 > K2 #2810 > > On Wed, 11 Nov 2009 23:57:14 +0100, you wrote: > > >> Hi Matt, >> >> I enjoy to contact you in JT65 before Winter "break"! >> My shack is in a camping site and accessible only >> during not too cold days (805m over sea level) >> At home QTH, i work with my old coil loaded mobile >> Hustler antenna fixed at balcony at 3rd floor with ~30° >> tilt from vertical position... >> If i remember, i've never contacted the West coast with >> this configuration; may be for this Winter??? >> >> 73 QRO de Rudi (instead of Rudolf for JT65...), HB9ARI >> >> Matt Zilmer wrote: >> >>> Ken & Rudi, >>> >>> I monitored you two working on 20m JT65A a few days ago, when I was >>> getting this computer set up and the levels right (again - new >>> laptop). Any idea how many other K3'ers are into JT65A? >>> >>> 73, >>> matt W6NIA >>> K3 #24 >>> >>> On Wed, 11 Nov 2009 13:10:25 -0800 (PST), you wrote: >>> >>> >>> >>>> Rudolf, >>>> >>>> We have worked many times on JT65A , I also use a K3. >>>> I operator in the Data mode , ( setup data mode for USB ) >>>> and have had no problem for about a year. >>>> I think this is the best way to run data modes. >>>> I set the shift at 1250 hz and the BW at 1200 HZ. >>>> The JT65 software only looks at 1200 hz bandwidth. >>>> This works for me. >>>> GL 73 Ken K5DNL >>>> >>>> -- >>>> >>>> >>>> --- On Wed, 11/11/09, hb9ari wrote: >>>> >>>> >>>> >>>>> From: hb9ari >>>>> Subject: Re: [Elecraft] JT65A output power variations. >>>>> To: "Elecraft-forum" >>>>> Date: Wednesday, November 11, 2009, 9:59 AM >>>>> Hello Matt, >>>>> >>>>> Yes, TX EQ is flat. I've tried to compensates >>>>> with TX EQ, but i've all "reseted" to "flat". >>>>> >>>>> Thank you for this indication. >>>>> >>>>> 73 QRO de Rudolf >>>>> HB9ARI >>>>> >>>>> Matt Zilmer wrote: >>>>> >>>>> >>>>>> Since you're using USB, you might want to be sure you >>>>>> >>>>>> >>>>> have the TX EQ >>>>> >>>>> >>>>>> "flat". Or use DATA A, where the EQ doesn't >>>>>> >>>>>> >>>>> apply. >>>>> >>>>> >>>>>> 73, >>>>>> matt W6NIA >>>>>> >>>>>> On Wed, 11 Nov 2009 11:28:36 +0100, you wrote: >>>>>> >>>>>> >>>>>> >>>>>> >>>>>>> Hi Julian, >>>>>>> >>>>>>> Thank you for your fast answer! >>>>>>> A 1st point, as with the FT857, i'm using >
Re: [Elecraft] JT65A output power variations.
Hi Lyle, Ok Lyle, one more time a too fast reading of (very well written!) K3's manual!!! Have a nice day. 73, Rudolf HB9ARI K3#1212 Lyle Johnson wrote: >> I choose USB to be able to use VOX; may be i'm wrong, but >> with DATA A, the TX activation is only possible with COM or PTT? > > VOX works in DATA A. > > 73, > > Lyle KK7P > > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] JT65A output power variations.
Hi Matt, I enjoy to contact you in JT65 before Winter "break"! My shack is in a camping site and accessible only during not too cold days (805m over sea level) At home QTH, i work with my old coil loaded mobile Hustler antenna fixed at balcony at 3rd floor with ~30° tilt from vertical position... If i remember, i've never contacted the West coast with this configuration; may be for this Winter??? 73 QRO de Rudi (instead of Rudolf for JT65...), HB9ARI Matt Zilmer wrote: > Ken & Rudi, > > I monitored you two working on 20m JT65A a few days ago, when I was > getting this computer set up and the levels right (again - new > laptop). Any idea how many other K3'ers are into JT65A? > > 73, > matt W6NIA > K3 #24 > > On Wed, 11 Nov 2009 13:10:25 -0800 (PST), you wrote: > > >> Rudolf, >> >> We have worked many times on JT65A , I also use a K3. >> I operator in the Data mode , ( setup data mode for USB ) >> and have had no problem for about a year. >> I think this is the best way to run data modes. >> I set the shift at 1250 hz and the BW at 1200 HZ. >> The JT65 software only looks at 1200 hz bandwidth. >> This works for me. >> GL 73 Ken K5DNL >> >> -- >> >> >> --- On Wed, 11/11/09, hb9ari wrote: >> >> >>> From: hb9ari >>> Subject: Re: [Elecraft] JT65A output power variations. >>> To: "Elecraft-forum" >>> Date: Wednesday, November 11, 2009, 9:59 AM >>> Hello Matt, >>> >>> Yes, TX EQ is flat. I've tried to compensates >>> with TX EQ, but i've all "reseted" to "flat". >>> >>> Thank you for this indication. >>> >>> 73 QRO de Rudolf >>> HB9ARI >>> >>> Matt Zilmer wrote: >>> >>>> Since you're using USB, you might want to be sure you >>>> >>> have the TX EQ >>> >>>> "flat". Or use DATA A, where the EQ doesn't >>>> >>> apply. >>> >>>> 73, >>>> matt W6NIA >>>> >>>> On Wed, 11 Nov 2009 11:28:36 +0100, you wrote: >>>> >>>> >>>> >>>>> Hi Julian, >>>>> >>>>> Thank you for your fast answer! >>>>> A 1st point, as with the FT857, i'm using >>>>> USB mode for JT65A. For the filter used, >>>>> i ordered a 8 poles 2.8k with my K3, >>>>> but i'm not sure if the 5 poles 2.7k "original" >>>>> and always installed as FIL2 is not >>>>> selected during TX???; next week-end, when >>>>> active at my "external" shack, i will look how >>>>> to remove the 2.7k filter, as i've also problem >>>>> with center filter when i adjust the HI LO >>>>> filter controls; when the 2.7k filter is >>>>> >>> (automatically) >>> >>>>> selected, i've a big discontinuity with >>>>> >>> filter setting. >>> >>>>> As you say, i will look if the 2.7k is not >>>>> >>> selected >>> >>>>> during TX. I read also the "problems" when in >>>>> DATA A mode, but as said, i'm working in USB >>>>> (as recommended for JT65A for all RF bands) >>>>> and VOX work at perfection too. >>>>> >>>>> My best 73, Rudolf >>>>> HB9ARI >>>>> >>>>> PS As i expect to get 50W output when i set >>>>> the control to 50W, i've adjusted the audio input >>>>> level for max bars on ALC. For PSK31, i work >>>>> with ~ 10 to15W max for 100W selectes with >>>>> the control and "local" receiving give me an >>>>> >>> "acceptable" >>> >>>>> -24 to -28dB IMD. >>>>> >>>>> >>>>> Julian, G4ILO wrote: >>>>> >>>>> >>>>>> hb9ari wrote: >>>>>> >>>>>> >>>>>> >>>>>>> Hello, >>>>>>> >>>>>>> As i use principally JT65A (snice ~ >>>>>>> >>> 2years), >>>
Re: [Elecraft] JT65A output power variations.
Hi Ken, I will look next week-end if DATA mode is usable with VOX? If i remember correctly, this was the (only) reason i choose USB mode(?) As i said before, the 3dB variation with output power in certain circumstances, when DF= ~ 0Hz is only a "minor" problem; i work with that since March 2008. I was just curious to know the cause of this "selective" effect with some "particular" JT65 tones. Just a precision, this level variation is also perfectly perceptible with the MON(itor) output of the K3... Very pleased to meet you in this forum and i enjoy to see you soon in the JT65 windows! (May be before my "forced" Winter break!) 73 QRO de Rudolf, HB9ARI Ken Roberson wrote: > Rudolf, > > We have worked many times on JT65A , I also use a K3. > I operator in the Data mode , ( setup data mode for USB ) > and have had no problem for about a year. > I think this is the best way to run data modes. > I set the shift at 1250 hz and the BW at 1200 HZ. > The JT65 software only looks at 1200 hz bandwidth. > This works for me. > GL 73 Ken K5DNL > > ------ > > > --- On Wed, 11/11/09, hb9ari wrote: > > >> From: hb9ari >> Subject: Re: [Elecraft] JT65A output power variations. >> To: "Elecraft-forum" >> Date: Wednesday, November 11, 2009, 9:59 AM >> Hello Matt, >> >> Yes, TX EQ is flat. I've tried to compensates >> with TX EQ, but i've all "reseted" to "flat". >> >> Thank you for this indication. >> >> 73 QRO de Rudolf >> HB9ARI >> >> Matt Zilmer wrote: >> >>> Since you're using USB, you might want to be sure you >>> >> have the TX EQ >> >>> "flat". Or use DATA A, where the EQ doesn't >>> >> apply. >> >>> 73, >>> matt W6NIA >>> >>> On Wed, 11 Nov 2009 11:28:36 +0100, you wrote: >>> >>> >>> >>>> Hi Julian, >>>> >>>> Thank you for your fast answer! >>>> A 1st point, as with the FT857, i'm using >>>> USB mode for JT65A. For the filter used, >>>> i ordered a 8 poles 2.8k with my K3, >>>> but i'm not sure if the 5 poles 2.7k "original" >>>> and always installed as FIL2 is not >>>> selected during TX???; next week-end, when >>>> active at my "external" shack, i will look how >>>> to remove the 2.7k filter, as i've also problem >>>> with center filter when i adjust the HI LO >>>> filter controls; when the 2.7k filter is >>>> >> (automatically) >> >>>> selected, i've a big discontinuity with >>>> >> filter setting. >> >>>> As you say, i will look if the 2.7k is not >>>> >> selected >> >>>> during TX. I read also the "problems" when in >>>> DATA A mode, but as said, i'm working in USB >>>> (as recommended for JT65A for all RF bands) >>>> and VOX work at perfection too. >>>> >>>> My best 73, Rudolf >>>> HB9ARI >>>> >>>> PS As i expect to get 50W output when i set >>>> the control to 50W, i've adjusted the audio input >>>> level for max bars on ALC. For PSK31, i work >>>> with ~ 10 to15W max for 100W selectes with >>>> the control and "local" receiving give me an >>>> >> "acceptable" >> >>>> -24 to -28dB IMD. >>>> >>>> >>>> Julian, G4ILO wrote: >>>> >>>> >>>>> hb9ari wrote: >>>>> >>>>> >>>>> >>>>>> Hello, >>>>>> >>>>>> As i use principally JT65A (snice ~ >>>>>> >> 2years), >> >>>>>> i've remarked transmit output power >>>>>> >> variations >> >>>>>> depending where the audio is located in >>>>>> >> the waterfall, >> >>>>>> as i'm not speaking English, it's >>>>>> >> difficult to explain correctly; >> >>>>>> if i'm ~ in the middle of the waterfall (~ >>>>>> >>
Re: [Elecraft] JT65A output power variations.
Hi Julian, I choose USB to be able to use VOX; may be i'm wrong, but with DATA A, the TX activation is only possible with COM or PTT? (it's the case for my "old" FT857) As i use rarely voice modulation, the front panel I/O receptacles are free, i don't have the necessity of a TX activation with lot of problems like RTS? and/or DSR?, DTR?, etc. The serial K3 is always connected to PC, and sometimes activated at the same time with WSJT and JT65-HF, for other programs like HRD,etc I prefer to use a LINE Input for the K3 to get a better SNR; i get sometimes bad results when using a MIC input level for modulation from sound card... I agree with you to avoid any level of compression and this level is always set to "0" , during my (rare) voice QSO too. I worked before for Broadcast TV and, before digital audio/video transfer, LINE level was always preferred, when possible, to MIC level for audio. One more point for LINE level, is value is +/- well defined, for MIC level, it's an other story... 73 QRO de Rudolf, HB9ARI Julian, G4ILO wrote: > I don't understand why anyone would use USB mode to operate a sound card data > mode, and have all the bother of switching the input between the mic socket > and the back panel, when the K3 provides a data mode with EQ flat and > compression off specifically for that purpose. > > Surely using a digimode set up for SSB with ALC operating and 20dB of > compression is going to cause distortion and splatter? Admittedly, JT65A > isn't PSK31 but even so I would have thought IMD products would occur, > though if you are operating on some VHF band and not the crowded digital > sector of 20m perhaps no-one will be bothered? > > I find my K3 produces more than ample output to drive sound card apps. I am > currently using LIN OUT = 10. In fact if I use much higher levels clipping > occurs somwhere and I see harmonics on the waterfall spectrum. > > On transmit the wave and master output sliders of my SB Live 24 card are set > to just below half way and the LINE level is currently set to 7. So I cannot > explain why you find the K3 line input insensitive or a lack of drive on > receive. > > - > Julian, G4ILO. K2 #392 K3 #222. > * G4ILO's Shack - http://www.g4ilo.com > * KComm - http://www.g4ilo.com/kcomm.html > * KTune - http://www.g4ilo.com/ktune.html > > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] JT65A output power variations.
Hello Matt, Yes, TX EQ is flat. I've tried to compensates with TX EQ, but i've all "reseted" to "flat". Thank you for this indication. 73 QRO de Rudolf HB9ARI Matt Zilmer wrote: > Since you're using USB, you might want to be sure you have the TX EQ > "flat". Or use DATA A, where the EQ doesn't apply. > > 73, > matt W6NIA > > On Wed, 11 Nov 2009 11:28:36 +0100, you wrote: > > >> Hi Julian, >> >> Thank you for your fast answer! >> A 1st point, as with the FT857, i'm using >> USB mode for JT65A. For the filter used, >> i ordered a 8 poles 2.8k with my K3, >> but i'm not sure if the 5 poles 2.7k "original" >> and always installed as FIL2 is not >> selected during TX???; next week-end, when >> active at my "external" shack, i will look how >> to remove the 2.7k filter, as i've also problem >> with center filter when i adjust the HI LO >> filter controls; when the 2.7k filter is (automatically) >> selected, i've a big discontinuity with filter setting. >> >> As you say, i will look if the 2.7k is not selected >> during TX. I read also the "problems" when in >> DATA A mode, but as said, i'm working in USB >> (as recommended for JT65A for all RF bands) >> and VOX work at perfection too. >> >> My best 73, Rudolf >> HB9ARI >> >> PS As i expect to get 50W output when i set >> the control to 50W, i've adjusted the audio input >> level for max bars on ALC. For PSK31, i work >> with ~ 10 to15W max for 100W selectes with >> the control and "local" receiving give me an "acceptable" >> -24 to -28dB IMD. >> >> >> Julian, G4ILO wrote: >> >>> hb9ari wrote: >>> >>> >>>> Hello, >>>> >>>> As i use principally JT65A (snice ~ 2years), >>>> i've remarked transmit output power variations >>>> depending where the audio is located in the waterfall, >>>> as i'm not speaking English, it's difficult to explain correctly; >>>> if i'm ~ in the middle of the waterfall (~ 1200Hz) >>>> i get over 3dB in output power variations; for an expected >>>> 50W output power, between some tones of the JT65A >>>> modulation, the output level can vary from 20W >>>> to 60W; if i'm working away from the "middle", >>>> variations are lower and acceptable but most >>>> of time, "central" frequencies are used... >>>> I've always worked with this "problem" as i >>>> expect some AGC effect by the receiving side... >>>> I would appreciate to have an explanation >>>> of this effect. >>>> >>>> >>>> >>>> >>> This topic has been brought up before in the context of RTTY. The reason is >>> that there is no automatic level control in DATA A mode (or rather, there >>> is, but it is very slow acting to avoid causing IMD on PSK31 signals) so >>> there is no compensation for ripples in the roofing filter passband. It has >>> been suggested that the problem is less when using the 8-pole SSB roofing >>> filter as it has less ripple than the standard 5-pole filter. >>> >>> The output should not vary as much as you suggest while working within the >>> normal passband for JT65A operation so I'm wondering if you have correctly >>> adjusted the audio input level in DATA A to get 5 bars on the ALC scale. >>> This will not prevent the power varying for different tones during a >>> transmission but it should help maintain a constant average level when >>> working at different places within the passband. >>> >>> - >>> Julian, G4ILO. K2 #392 K3 #222. >>> * G4ILO's Shack - http://www.g4ilo.com >>> * KComm - http://www.g4ilo.com/kcomm.html >>> * KTune - http://www.g4ilo.com/ktune.html >>> >>> >>> >> __ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft@mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> > > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] JT65A output power variations.
Hello Lance, I use the same settings for ALC(also 5 bars in JT65), USB and use the rear LINE IN. As you are using the original 2.7kHz filter this seems not be the problem.; BUT i don't use compression and this can explain that you don't have "my" output power variation; i can imagine that 20dB compression should be able to "compensates" a ~ 3dB HF output variation. In receive, i have no problem. Some time ago, i do a HF output response measurement (with a LP-100) and i remember that the curve was far from flat...As it was before i use JT65, with voice, my correspondents don't hear something "wrong". It's only since i use extensively JT65 and monitor my output power according QRP'ers request, HF band, etc that i've remarked this > 3dB output variation. For ~ 1000 HF JT65 QSO, i worked from 0.5W to (exceptionally) 300W. My "usual" power is between 25W and 50W. I think that compression will correct (if necessary..) "my" problem but the source seems to be from the filter used in TX. Next week-end i should be clear about that. For the moment, i'm not QRV on 6m Terrestrial, MS or EME. Just SSB when apertures are there. Thank you for your explanations and i will try compression; habitually, i don't like too much to use it, but... 73 QRO, Rudolf HB9ARI Lance Collister, W7GJ wrote: > Hello Rudolf, > > I use JT65A all the time with my K3 for 6m EME, and I have always used > USB mode for it. I have no trouble with the USB setting...I have > never even tried the DATA options. I have the standard 2.7 kHz > filter, and set the audio just like I do for USB voice. I make sure > to have the ALC fill the 5 bars on the meter, and I use 20 dB of > compression to make sure that all the tones come up to the proper > power levels. I use the LINE IN on the rear panel for my incoming > JT65A tones from the computer. > > I find the K3 a great rig for JT65A because I can make a flat > bandwidth 300 Hz to 2200 Hz, and decode callers over that entire > frequency range. I usually run JT65A with the NB on the first setting > (IF NAR 1), DSP OFF and the AGC off. It is an amazing mode because it > has 10 dB sensitivity over CW. Most of the time on 6m EME, signals > are too weak to hear, but they are nicely displayed on the SpecJT > screen and decoded on the JT65A screen. > > Now that we are at the bottom of the sunspot cycle, the ionospheric > propagation is very poor. However, because the geomagnetic field is > usually very quiet these days, this is the VERY BEST time for 6m EME! > That is why there has been so much growth in 6m EME over the last > year, and there have been such successful DX operations by small 6m > stations using JT65A mode with just a single yagi aimed at the horizon. > > GL and VY 73, Lance > > hb9ari wrote: >> Hello, >> >> As i use principally JT65A (snice ~ 2years), >> i've remarked transmit output power variations >> depending where the audio is located in the waterfall, >> as i'm not speaking English, it's difficult to explain correctly; >> if i'm ~ in the middle of the waterfall (~ 1200Hz) >> i get over 3dB in output power variations; for an expected >> 50W output power, between some tones of the JT65A >> modulation, the output level can vary from 20W >> to 60W; if i'm working away from the "middle", >> variations are lower and acceptable but most >> of time, "central" frequencies are used... >> I've always worked with this "problem" as i >> expect some AGC effect by the receiving side... >> I would appreciate to have an explanation >> of this effect. >> >> Many TNX for an answer. >> >> 73 QRO de Rudolf, HB9ARI >> >> PS With the same sound card and software, >> using my "old" FT857 (non D) TX/RX, the >> output power variation is well under 1dB >> until the audio band edges. >> >> >> __ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft@mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> >> > > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] JT65A output power variations.
Hi Julian, Thank you for your fast answer! A 1st point, as with the FT857, i'm using USB mode for JT65A. For the filter used, i ordered a 8 poles 2.8k with my K3, but i'm not sure if the 5 poles 2.7k "original" and always installed as FIL2 is not selected during TX???; next week-end, when active at my "external" shack, i will look how to remove the 2.7k filter, as i've also problem with center filter when i adjust the HI LO filter controls; when the 2.7k filter is (automatically) selected, i've a big discontinuity with filter setting. As you say, i will look if the 2.7k is not selected during TX. I read also the "problems" when in DATA A mode, but as said, i'm working in USB (as recommended for JT65A for all RF bands) and VOX work at perfection too. My best 73, Rudolf HB9ARI PS As i expect to get 50W output when i set the control to 50W, i've adjusted the audio input level for max bars on ALC. For PSK31, i work with ~ 10 to15W max for 100W selectes with the control and "local" receiving give me an "acceptable" -24 to -28dB IMD. Julian, G4ILO wrote: > hb9ari wrote: > >> Hello, >> >> As i use principally JT65A (snice ~ 2years), >> i've remarked transmit output power variations >> depending where the audio is located in the waterfall, >> as i'm not speaking English, it's difficult to explain correctly; >> if i'm ~ in the middle of the waterfall (~ 1200Hz) >> i get over 3dB in output power variations; for an expected >> 50W output power, between some tones of the JT65A >> modulation, the output level can vary from 20W >> to 60W; if i'm working away from the "middle", >> variations are lower and acceptable but most >> of time, "central" frequencies are used... >> I've always worked with this "problem" as i >> expect some AGC effect by the receiving side... >> I would appreciate to have an explanation >> of this effect. >> >> >> > > This topic has been brought up before in the context of RTTY. The reason is > that there is no automatic level control in DATA A mode (or rather, there > is, but it is very slow acting to avoid causing IMD on PSK31 signals) so > there is no compensation for ripples in the roofing filter passband. It has > been suggested that the problem is less when using the 8-pole SSB roofing > filter as it has less ripple than the standard 5-pole filter. > > The output should not vary as much as you suggest while working within the > normal passband for JT65A operation so I'm wondering if you have correctly > adjusted the audio input level in DATA A to get 5 bars on the ALC scale. > This will not prevent the power varying for different tones during a > transmission but it should help maintain a constant average level when > working at different places within the passband. > > - > Julian, G4ILO. K2 #392 K3 #222. > * G4ILO's Shack - http://www.g4ilo.com > * KComm - http://www.g4ilo.com/kcomm.html > * KTune - http://www.g4ilo.com/ktune.html > > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] JT65A output power variations.
Hello, As i use principally JT65A (snice ~ 2years), i've remarked transmit output power variations depending where the audio is located in the waterfall, as i'm not speaking English, it's difficult to explain correctly; if i'm ~ in the middle of the waterfall (~ 1200Hz) i get over 3dB in output power variations; for an expected 50W output power, between some tones of the JT65A modulation, the output level can vary from 20W to 60W; if i'm working away from the "middle", variations are lower and acceptable but most of time, "central" frequencies are used... I've always worked with this "problem" as i expect some AGC effect by the receiving side... I would appreciate to have an explanation of this effect. Many TNX for an answer. 73 QRO de Rudolf, HB9ARI PS With the same sound card and software, using my "old" FT857 (non D) TX/RX, the output power variation is well under 1dB until the audio band edges. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3: 160m SWR issue
Ok, Brian! No other idea Good luck for solving this problem! 73, Rudolf Brian Machesney wrote: > Good question, Rudolf, but no the ATU is not engaged. > > On Tue, Nov 3, 2009 at 2:56 PM, hb9ari <mailto:hb9...@bluewin.ch>> wrote: > > Hi Brian, > > Just an "idiot" question: are you using the K3 ATU? > > 73, Rudolf HB9ARI > > Don Wilhelm wrote: > > Brian, > > > > Is the higher reflected power indicated on the K3 or is it the > reading > > on a meter in the line between the amp and the antenna? > > > > If it is read on an external meter -- > > Is there any possibility that something is arcing over at high > power - > > check your antenna system for that condition. > > > > If the indication is on the K3, then the problem is in the input > circuit > > for the amp (giving a non-50 ohm resistive load to the K3). > > > > 73, > > Don W3FPR > > > > Brian Machesney wrote: > > > >> I'm feeding a "double L" antenna on 160m (visualize a vertical > dipole with > >> the top and bottom legs bent to form something like a capital > "C" and fed in > >> the middle of the vertical leg). The SWR bridge on the K3 shows > 1:1 SWR, but > >> when I fire up my Alpha 91B, I see significant reflected power. > >> > >> I recently saw a post on the topband reflector from another K3 > owner whose > >> 160m output power is being reduced from 100W to 50W by the K3 > even though > >> the SWR reads 1:1 on the K3's internal SWR bridge. > >> > >> Has anyone else seen this or have an explanation for it? > >> > >> > >> > > __ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft@mailman.qth.net > <mailto:Elecraft@mailman.qth.net> > > > > This list hosted by: http://www.qsl.net > > Please help support this email list: http://www.qsl.net/donate.html > > > > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > <mailto:Elecraft@mailman.qth.net> > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > > > > > -- > 73 -- Brian -- K1LI __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3: 160m SWR issue
Hi Brian, Just an "idiot" question: are you using the K3 ATU? 73, Rudolf HB9ARI Don Wilhelm wrote: > Brian, > > Is the higher reflected power indicated on the K3 or is it the reading > on a meter in the line between the amp and the antenna? > > If it is read on an external meter -- > Is there any possibility that something is arcing over at high power - > check your antenna system for that condition. > > If the indication is on the K3, then the problem is in the input circuit > for the amp (giving a non-50 ohm resistive load to the K3). > > 73, > Don W3FPR > > Brian Machesney wrote: > >> I'm feeding a "double L" antenna on 160m (visualize a vertical dipole with >> the top and bottom legs bent to form something like a capital "C" and fed in >> the middle of the vertical leg). The SWR bridge on the K3 shows 1:1 SWR, but >> when I fire up my Alpha 91B, I see significant reflected power. >> >> I recently saw a post on the topband reflector from another K3 owner whose >> 160m output power is being reduced from 100W to 50W by the K3 even though >> the SWR reads 1:1 on the K3's internal SWR bridge. >> >> Has anyone else seen this or have an explanation for it? >> >> >> > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 Power Output
Trev, You're Welcome! As written, i've also to work on the "problem"... 73, Rudolf TREVOR WATERS wrote: > Rudolf, > Many thanks for the reply to my post. Still working on the problem here. > Many thanks for your thoughts > Gud DX Best 73 > Trev GW4IMC > > --- On *Wed, 2/9/09, hb9ari //* wrote: > > > From: hb9ari > Subject: Re: [Elecraft] K3 Power Output > To: "trev" > Date: Wednesday, 2 September, 2009, 7:54 AM > > Trev, > Sorry, but i've replied to your private address! > 73, > Rudolf > > trev wrote: > > It's been a long time since I made a post to this group so hope > someone can > > help. > > My K3/100 which has all the latest firmware installed behaves > oddly. When > > the TX is keyed with > > the mic the power out only goes to approx 30watts although it is > set to > > 100watts. Then it seems > > to slowly build when the mic is keyed a few times. Maybe I am > missing > > something or have a parameter set wrong in a menu. I would > appreciate any thoughts or ideas. Thanks in advance. > > Trev GW4IMC > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] K3 Power Output
Ok! It's in the "to do" list! 73, Rudolf Alexandr Kobranov wrote: > Absolutely! > One thing is to have uniformity of power out (this is what we need as > a final), the other is to know levels of AF out per tone from the > sound card and then characteristic of the rest of line. > > Let me know your results, my setting was very fast and without any > remarks so no table of tone/af level/power out level per WSJTx mode > done yet. Will try in some spare time and we can compare :-) > > 73! > L. -dst- > > hb9ari napsal(a): >> Hi Lexa, >> >> Very good info, i will do some tests this week-end. >> >> At the same time, a verification of the audio level >> response (WSJT/Sound card) should be a good precaution... >> >> 73 QRO de Rudolf, HB9ARI >> >> Alexandr Kobranov wrote: >>> Hi Markus, >>> you prabably know but maybe good for the others trying WSJT/WSPR: >>> You can try very simply power levels per tone by using WSJT menu >>> Setup - Generate messages for test tones. >>> Then you have @A - @D and @1000 and @2000 in TX1 - TX6 windows >>> You can test each tone separately and try to adjust level of TX EQ >>> to obtain the best distribution. >>> Yes, there are differencies, very big sometimes. >>> Maybe later when TX EQ will be -per mode- saved and (if any chance) >>> user selected frq of setting point possible there will be better >>> game with it. >>> >>> Good luck, >>> 73! >>> Lexa, ok1dst >>> K3/10 #727 >>> >>> >>> >>> hb9brj napsal(a): >>> >>>> hb9ari wrote: >>>> >>>>> I work essentially with JT65A mode; as this mode >>>>> is a single tone mode, i've set the modulation >>>>> level just before full ALC and power to 50W >>>>> (for DX only...). At the beginning of a >>>>> JT65A transmit sequence, the power start >>>>> at ~ 25W and go up to ~ 48W in 3 to 5 sec. >>>>> >>>>> >>>> I'm active in WSPR mode, which is a single tone as well. >>>> Mode = "DATA A", ALC = 4 bars, PWR = 5W. >>>> An external wattmeter shows an absolutely steady power throughout >>>> the entire >>>> 2-minute TX cycle. >>>> The bottom cover just underneath the LPA gets pretty hot, but at 5W >>>> the KPA3 >>>> is bypassed. >>>> Will run a test at higher power to see whether or not it makes a >>>> difference. >>>> >>>> 73, Markus HB9BRJ >>>> >>> __ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft@mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> >>> >> __ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft@mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] K3 Power Output
Hi Lexa, Very good info, i will do some tests this week-end. At the same time, a verification of the audio level response (WSJT/Sound card) should be a good precaution... 73 QRO de Rudolf, HB9ARI Alexandr Kobranov wrote: > Hi Markus, > you prabably know but maybe good for the others trying WSJT/WSPR: > You can try very simply power levels per tone by using WSJT menu Setup > - Generate messages for test tones. > Then you have @A - @D and @1000 and @2000 in TX1 - TX6 windows > You can test each tone separately and try to adjust level of TX EQ to > obtain the best distribution. > Yes, there are differencies, very big sometimes. > Maybe later when TX EQ will be -per mode- saved and (if any chance) > user selected frq of setting point possible there will be better game > with it. > > Good luck, > 73! > Lexa, ok1dst > K3/10 #727 > > > > hb9brj napsal(a): > >> hb9ari wrote: >> >>> I work essentially with JT65A mode; as this mode >>> is a single tone mode, i've set the modulation >>> level just before full ALC and power to 50W >>> (for DX only...). At the beginning of a >>> JT65A transmit sequence, the power start >>> at ~ 25W and go up to ~ 48W in 3 to 5 sec. >>> >>> >> I'm active in WSPR mode, which is a single tone as well. >> Mode = "DATA A", ALC = 4 bars, PWR = 5W. >> An external wattmeter shows an absolutely steady power throughout the entire >> 2-minute TX cycle. >> The bottom cover just underneath the LPA gets pretty hot, but at 5W the KPA3 >> is bypassed. >> Will run a test at higher power to see whether or not it makes a difference. >> >> 73, Markus HB9BRJ >> > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] K3 Power Output
Hi Julian, I don't remember the reason(...) but i work in USB mode. I will try to work in DATA A mode this week-end and at the same time, recover the reason for the USB mode choice! (i read that somewhere!) For the ALC, i set the level just before the end of "variation" (if i'm correct, as i'm not in my shack, it should be 4 steady bars and the 5th flashing?) ele Thank you for the info. 73 QRO de Rudolf, HB9ARI Julian, G4ILO wrote: > > hb9ari wrote: > >> Hi Trev, >> >> Since the beginning, i always get the same behavior >> with my K3 #1212 (factory build). I work >> essentially with JT65A mode; as this mode >> is a single tone mode, i've set the modulation >> level just before full ALC and power to 50W >> (for DX only...). At the beginning of a >> JT65A transmit sequence, the power start >> at ~ 25W and go up to ~ 48W in 3 to 5 sec. >> If the PA temperature is at ~ 40 to 46°C, >> the power variation is lower and power >> output start at ~40W; i'm certainly >> wrong, but i've always thought that this >> was related to PA temp and, as i never get >> an output power higher then selected, >> this was not a problem in my case. >> >> What is a problem for me is the transmit >> audio response; i've tried to adjust XTAL filter >> without success; TX EQU compensation >> too. As my VFO working frequency >> is always set to the JT65A "preferred" >> frequency, it's the audio frequency who >> defines the actual output spectrum; >> for some audio values, i get well over 3dB >> output power variations between some >> JT65A instantaneous frequencies; for example, >> with a 45W max power, for somes frequencies, >> level go under 20W; i work with this since more >> then one year and i'm always hoping that >> the AGC of my correspondent can handle >> a "little" ~3dB RF input variation (the QSB >> is generally higher...) >> >> Sorry for this time and bandwidth consuming >> message. >> >> 73 QRO de Rudolf, hb9ari >> >> >> > > Are you not using DATA A for this, Rudolph? If so, you can set the audio > drive for a steady 4 bars in the "ALC" scale and the K3 will adjust the > power for the value selected across the whole range of the audio spectrum > (that you might reasonably want to use.) > > It didn't always work like this, but it has for many months now. Using PSK31 > I can click on a signal anywhere from about 300Hz to 2700Hz, call them and > get exactly the power requested (within reason, of course.) > > - > Julian, G4ILO. K2 #392 K3 #222. > * G4ILO's Shack - http://www.g4ilo.com > * KComm - http://www.g4ilo.com/kcomm.html > * KTune - http://www.g4ilo.com/ktune.html > > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 Power Output
Hi Trev, Since the beginning, i always get the same behavior with my K3 #1212 (factory build). I work essentially with JT65A mode; as this mode is a single tone mode, i've set the modulation level just before full ALC and power to 50W (for DX only...). At the beginning of a JT65A transmit sequence, the power start at ~ 25W and go up to ~ 48W in 3 to 5 sec. If the PA temperature is at ~ 40 to 46°C, the power variation is lower and power output start at ~40W; i'm certainly wrong, but i've always thought that this was related to PA temp and, as i never get an output power higher then selected, this was not a problem in my case. What is a problem for me is the transmit audio response; i've tried to adjust XTAL filter without success; TX EQU compensation too. As my VFO working frequency is always set to the JT65A "preferred" frequency, it's the audio frequency who defines the actual output spectrum; for some audio values, i get well over 3dB output power variations between some JT65A instantaneous frequencies; for example, with a 45W max power, for somes frequencies, level go under 20W; i work with this since more then one year and i'm always hoping that the AGC of my correspondent can handle a "little" ~3dB RF input variation (the QSB is generally higher...) Sorry for this time and bandwidth consuming message. 73 QRO de Rudolf, hb9ari trev wrote: > It's been a long time since I made a post to this group so hope someone can > help. > My K3/100 which has all the latest firmware installed behaves oddly. When > the TX is keyed with > the mic the power out only goes to approx 30watts although it is set to > 100watts. Then it seems > to slowly build when the mic is keyed a few times. Maybe I am missing > something or have a parameter set wrong in a menu. > I would appreciate any thoughts or ideas. Thanks in advance. > Trev GW4IMC > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 VFO tuning hash
Hello, I was totally in error when i thought it was an encoder generated noise. I'm 100% ok with an internal (SPI?) bus generated noise; i've just tested around 28.005MHz but with PowerSDR tuning instead of VFO knob; the noise is there but disappear when no frequency change. 73 QRO fr Rudolf, HB9ARI GW0ETF wrote: > Wayne et al, > > I too can confirm the existence of what intuitively sounds like encoder > clicks on the bottom end of 10m as well as the lower ends of 15 and 6m. Most > times they are masked by antenna noise (and some pc low level hash here on > 6...!) but it does seem to vary in 'severity' so I was interested in your > comments about I/O devices etc. The bottom end of 10 does seem consistently > the worst though. > > A couple of observations from here:- > > 1/ When switched on both RIT and SUB encoders produce clicks. > 2/ The Main encoder produces clicks also in the SUB rx and vice versa. > 3/ SHIFT/LO and HI/WIDTH controls also produce clicks. > > DSP helps and ofcourse it doesn't ultimately interfere with a qso. I've only > noticed this since using 10m and then not all the time and I've yet to > double check the mechanics/wiring inside the radio. > > 73, > > Stewart Rolfe, GW0ETF > > K3 #145 (V3.19 and pretty well modded up to date) > > > wayne burdick wrote: > >> John, >> >> I've noted your report of VFO tuning noise on 10 m, and will look into >> it further when I get back from vacation. Sounds like re-radiation of >> SPI bus tuning data, and this could be frequency specific. It might >> also vary with the type of antenna, ground, and other I/O devices >> connected to the rig. Usually atmospheric noise masks any digital >> switching noise, which is typically at an extremely low level. >> >> >> >> > > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 VFO tuning hash
Dave, Same noise here (K3#1212) near 28MHz. May be related to encoder transitions spectrum falling around this frequency? With a noise level corresponding to S1 (no antenna), the VFO tuning noise is peaking to S2; with antenna, (S4 noise) the tuning noise is just audible and no Smeter level modification. 73 QRO de Rudolf, HB9ARI Dave Van Wallaghen wrote: > John, I just noticed the same thing on 10m the other day. If I used the > finger dimple, I could hear it. But if I used the outer rubber ring with 1 or > more fingers it would not be nearly as noticable. > > I was operating portable in my yard with around 150' of extension cord to > power my Gamma PS. > > I thought about searching the archives for something about this. Funny you > should mention it. > > 73, > Dave W8FGU > > > -Original Message- > From: John Lawrence > > Date: Fri, 26 Jun 2009 17:20:59 > To: > Subject: [Elecraft] K3 VFO tuning hash > > > Now that 6 and 10 meters have been open to Europe and Africa, I frequent > these bands for the first time in the six months of owning a factory built K3 > radio. > > What I've discovered and reported to factory tech support is a very noticable > hash noise > while in the receive mode with any bandwidth centered around 28.000 MHz to > 28.050 MHz. And, it is also > present while tuning RIT. It sounds like synthesizer switching noise and its > repetition rate increses when the VFO is set to fine > tuning. I do not hear it on any other band. I also don't hear it over the > entire 10 meter band, just the region as stated. > > Is this in other K3s or is there something going on that needs attention in > only my radio? I called factory tech support over a week ago. Since they > have not come up with an answer it seemed time to open it up to a wider group > of users. > > Thanks > > 73, > > John, W1QS > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > > > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 Feature Request Using Fine/Coarse
Hi Bill, Me too! 73 QRO de Rudolf, HB9ARI K3#1212 Bill K9YEQ wrote: > I like that idea. > > 73, > > Bill > K9YEQ > K2 #35; KX1 #35; K3 #1744; mini mods > ATS-3B > > -Original Message- > From: elecraft-boun...@mailman.qth.net > [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Julian, G4ILO > > > Edward Dickinson III wrote: > >> Hi Bill and thanks for the reply. >> >> I'd like tuning as usual in 10 kHz steps, but would like to able to shut >> off >> the display of the 10Hz digit. >> >> >> > But if the 10Hz (and 1Hz for that matter) digits are actually not zero then > the radio would be displaying a frequency that could be up to 99Hz low. > > Personally I'd like the 1Hz to be set to 0 when 10kHz steps are used, and > 10Hz set to 0 when 100Hz steps are used, etc. Then however many digits were > being displayed, it would always be the exact frequency. > > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Driveway Distortion Demolition Derby
Hello Steve, I totally agree with you! I get very severe overloading problems with a Winradio G313/180e and the only proposed solution by a group member was to use a smaller antenna! I'm using an horizontal loop ~96 m perimeter and with this same antenna, no problem with my K3. As i'm working mainly with JT65A(50W) and PSKnn (25W), i get very good results. For SSB, like you for CW, i will be "obliged" to add some dB to be able to be heard by a lot of stations perfectly received!( my idea is not to "break" pile-up!) 73 QRO fr Rudolf, HB9ARI (66yo ham since 1970 but "younger" since i can play with my K3 #1212!) Steve Ellington wrote: > The complaint was not "ridiculous". The original observation wasThe K3 > distorts and the FT-817 doesn't under the same conditions. > > The poor guy was called stupid, ridiculous, ignorant and told he needs to > "study" and go back to school. > > I think he has a good question and I have yet to see a logical answer. > Claims that the K3 is "souped up" and exempt from strong signal overload is > the ridiculous part! > > If the K3 distorts on 109DB signals and the FT-817 doesn't then so be it. > It's a weakness. Just leave it at that. I'm sure the 817 has plenty more > weaknesses! > > Let's not let this list get like the TenTec reflector. Mention something > negative there and you are immediately put down or soon thrown off. > > I've recently subscribed to the IC-7600 Yahoo group just to watch how the > new radio was doing. So far I've seen two concerns. Some have a dimmer > screen saver than others and a few have had to do a master reset because of > audio drop out and it's starting to look like a glitch in some 3rd party rig > control program causing that. Otherwise, everyone seems satisfied. Of > course, those guys know that ICOM isn't going to respond to anything that's > said so maybe they just don't bother. > > I'm still enjoying my K3. Things have been rather lopsided lately however. I > am able to copy cw through the QRN better than the other guy, especially > when I take advantage of the NR. This gives me er...maybe 6db advantage or > so. Therefore I've ordered an ALS-600 to help make up the difference. The > K3's superior receiver is costing me money! > Steve Ellington > n...@carolina.rr.com > - Original Message - > From: "Robert Carroll" > To: > Sent: Tuesday, May 05, 2009 10:13 AM > Subject: Re: [Elecraft] Driveway Distortion Demolition Derby > > > >> Guy- >> >> That's a nice response to a really ridiculous complaint. >> 73 >> Bob W2WG >> >> -Original Message- >> From: elecraft-boun...@mailman.qth.net >> [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Guy Olinger, K2AV >> Sent: Tuesday, May 05, 2009 9:50 AM >> To: elecraft@mailman.qth.net >> Subject: [Elecraft] Driveway Distortion Demolition Derby >> >> Two 100w mobiles in the same driveway and expecting linear response from >> the >> >> RX in one while transmitting on the other? Talking about volts across the >> antenna jack (or any of the connecting cables) here. Who's the EE? S9 is >> 50 uv. 1 volt = 20 log 1/ .50 = 86 over S9. Maybe ten volts on the >> antenna. That's 106 over S9. >> >> Hearing some kind of distortion on a 100 over S9 signal is some kind of >> desperately grave trouble in a K3 trouble worth attention? Really want >> Wayne spend precious development time figuring that out? Personally I >> vote >> for 10 Hz granularity on CW using width and shift. >> >> Thought the customary form of communication from thirty feet was audio off >> the lips. Need 100 watts on 60m to communicate thirty feet? Audio >> distortion could be the driveway version of RF in the shack. 10 volts >> externally imposed RF wandering around on your cable of choice is a >> formula >> for wierdness no matter where the station. >> >> Someone is really lucky they didn't smoke something. And if the K3 did >> get >> toasted in this driveway radio demolition derby, that would be the K3's >> fault too, right? Double fault, K3 was distorting the audio while the >> front >> >> end was being roasted. Bad K3. Bad K3. >> >> Some of the radios bandied about earlier were specifically designed in >> World >> >> War II to survive conditions related to an enemy was trying to kill the >> operator. I'd call that a design standard specifically requested and paid >> for. Since one ta
Re: [Elecraft] PSK 31
Ron, Serial connection is used for K3 control. You should connect the "LINE-OUT" at the rear of the K3 to the Line or Mic inp of your Sound Card (internal or external); this is the audio path for receiving PSK31; you should connect the Line-out or Spkr out of the the above sound card to the "IN-LINE" connector at the rear of the K3; this is the path for audio when you transmit PSK31; i've not my K3 User Manual by me, but you can find how to select the correct mode for the K3's "IN-LINE-OUT" connector usage. You should also adjust the RX/TX audio levels and find the best compromise between K3 and Sound Card levels settings. As you have worked before with PSK31, i'm sure you will be able to find the best settings with the K3. 73 QRO de Rudolf, HB9ARI Ron Midwin wrote: > Thanks, Rudolf, > > Your response tells me exactly what I was looking to hear. > > Question: do I have to add cables from my computer to the K-3, of is > the USB - Serial Adapter I use sufficient? > > Best 73, > > Ron > AE6RH > > Ron Midwin > Midwin & Olifson, Inc. > 2001 S. Barrington Ave. #120 > Los Angeles, CA 90025 > 310-880-0699 (Cell) > mid...@mo-rep.com > > > -Original Message- > From: hb9ari [mailto:hb9...@bluewin.ch] > Sent: Monday, April 06, 2009 10:24 PM > To: Ron Midwin > Subject: Re: [Elecraft] PSK 31 > > Ron, > > For PSK31 i use Digipan since many years and HRD since ~ 1 year; if you > want to have > a waterfall display, i think that "external" software, PC and sound card > are a necessity. > I've just tried to work PSK31 with my K3 (#1212), no problem with RX, > but i find > that transmitting is less easy, it's my point of vue, than using Digipan > (for example); > i find it easy to use and we have also a "panoramic" sight of in filter > band adjacent > stations. I also appreciate the "Tune" mode of Digipan; after one year > of HRD use, > i don't find the equivalent function... > > 73 QRO de Rudolf, HB9ARI > > PS No relation with Digipan writer(s), just a very satisfied user! > > > > > Ron Midwin wrote: > >> Gentlemen: >> >> >> >> I've been playing around with PSK-31 and can sort of get it working, using >> the K-3 and the Elecraft software. I am able to send by typing text into >> the software, and someone on the same frequency can hear and copy me. I >> > was > >> having difficulty copying him, even thought I was hear his warble. >> >> >> >> I also have a copy of HRD, which is quite complicated to use, so I've put >> that off, even though I hear great things about it. >> >> >> >> My question is, does anyone have an application note; PSK-31 on a K-3 for >> dummies, that would give me a simple way to play with it? >> >> >> >> I've used PSK-31 before on a previous 746 Pro and a Tigertronics USB box, >> and it worked fine. I was able to see the waterfall on my computer screen >> and could select a signal by clicking on the signal on the display. Not >> sure if I can still do this using elecraft software? >> >> >> >> I have my K-3 connected to my laptop computer with a USB-serial adapter, >> which works fine. Do I need to use the sound card in my laptop too? >> >> >> >> Thanks, >> >> >> >> Ron >> >> AE6RH >> >> S/N 1997 >> >> >> >> >> >> >> >> Ron Midwin >> >> __ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft@mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> >> >> > No virus found in this incoming message. > Checked by AVG - www.avg.com > Version: 8.5.285 / Virus Database: 270.11.45/2045 - Release Date: 04/07/09 > 06:41:00 > > > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] PSK 31
Ron, For PSK31 i use Digipan since many years and HRD since ~ 1 year; if you want to have a waterfall display, i think that "external" software, PC and sound card are a necessity. I've just tried to work PSK31 with my K3 (#1212), no problem with RX, but i find that transmitting is less easy, it's my point of vue, than using Digipan (for example); i find it easy to use and we have also a "panoramic" sight of in filter band adjacent stations. I also appreciate the "Tune" mode of Digipan; after one year of HRD use, i don't find the equivalent function... 73 QRO de Rudolf, HB9ARI PS No relation with Digipan writer(s), just a very satisfied user! Ron Midwin wrote: > Gentlemen: > > > > I've been playing around with PSK-31 and can sort of get it working, using > the K-3 and the Elecraft software. I am able to send by typing text into > the software, and someone on the same frequency can hear and copy me. I was > having difficulty copying him, even thought I was hear his warble. > > > > I also have a copy of HRD, which is quite complicated to use, so I've put > that off, even though I hear great things about it. > > > > My question is, does anyone have an application note; PSK-31 on a K-3 for > dummies, that would give me a simple way to play with it? > > > > I've used PSK-31 before on a previous 746 Pro and a Tigertronics USB box, > and it worked fine. I was able to see the waterfall on my computer screen > and could select a signal by clicking on the signal on the display. Not > sure if I can still do this using elecraft software? > > > > I have my K-3 connected to my laptop computer with a USB-serial adapter, > which works fine. Do I need to use the sound card in my laptop too? > > > > Thanks, > > > > Ron > > AE6RH > > S/N 1997 > > > > > > > > Ron Midwin > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 remote
Sorry, text was missing! hb9ari Sascha, I will look to find "ipsound" and try your configuration; may be it can be the solution for my "data" audio transfer! Thank you for sharing your experience! 73 QRO de Rudolf, HB9ARI DH2SE wrote: > Hello Jerry, > > I'm already doing this with my K3. It's easy to setup if you use e.g. > HamRadio Deluxe (HRD). It's free of charge. Just install this programm at > your PC which is located in the remote station shack. There is a possibility > to run a so called IP-Server at tools -> IP server. Just switch it on and > connect your K3 via a standard 1:1 serial cable to that PC. When you start > HRD again, there is a message comming up where you can choose your > transceiver (e.g. K3) and the baudrate which is used for the serial > connection between PC and TRX. You have to set up the same baudrate as the K3 > is set to in the config:RS232 menue. If the TRX is connected well, the > frequency which is shown at the K3 display should also appear on your PC > screen after the connection is established. To make sure that the keying > works well, you have to setup the K3 in the menue config:PTT-key to DTR or > RTS. HRD has to switch to the same setting once when started up. Now you > maybe need to configure your internet ro ut > er in the way that the port 7809 is routed to the said PC in both ways. To > transfer the audio I would recommend a programm called ipsound instead of > skype. It comes with the HRD-package. Just connect your K3 with two 1:1 audio > cables to the soundcard of the PC and run the ipconfig programm. You have to > make sure again, that the used port for the audio connection (default: ) > is also routed in both ways to and from the internet. At the remote PC > somewhere, just install HRD again and choose remote instead of a baudrate > when the menue with the connection dialoque comes up. There you need to > choose your TRX type again certainly. It works great! > > Have fun. > > vy 73 de Sascha, DH2SE > > > >> Hello, >> > > >> Has anyone been able to remote control the K3 from a remote PC ? The >> idea is to operate my station (K3) at home from a remote location (PC). >> Care to share your ideas ? >> > > >> Thanks >> Jerry, KE9I >> > > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 remote
Hello, From my side, i use HRD with good results: "server" running on the K3 side and "client" on the other side. Using Skype for audio (waiting for (future?) audio transfer included in HRD. This config is ok for voice modes but failed for data modes.(jitter, distortion etc in my conditions) I've tried also Radmin, for data modes but it's a little more bandwidth consuming.(i'm limited with a wireless internet access from remote side), and practical use is not good for me; as data decoding is done on the K3 side, results are the same as with "local" use; but as my "wireless access" is relatively slow and unstable depending of users requests, the refresh rate on the remote PC is often too long and unusable for QSO; just acceptable for RX only. I think, but i've not tested yet, that with a good internet connection, Radmin should be OK for data modes and voice modes with Skype. 73 QRO fr Rudolf, HB9ARI Gerard Jendraszkiewicz wrote: > Hello, > > Has anyone been able to remote control the K3 from a remote PC ? The > idea is to operate my station (K3) at home from a remote location (PC). > Care to share your ideas ? > > Thanks > Jerry, KE9I > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > > > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 remote
DH2SE wrote: > Hello Jerry, > > I'm already doing this with my K3. It's easy to setup if you use e.g. > HamRadio Deluxe (HRD). It's free of charge. Just install this programm at > your PC which is located in the remote station shack. There is a possibility > to run a so called IP-Server at tools -> IP server. Just switch it on and > connect your K3 via a standard 1:1 serial cable to that PC. When you start > HRD again, there is a message comming up where you can choose your > transceiver (e.g. K3) and the baudrate which is used for the serial > connection between PC and TRX. You have to set up the same baudrate as the K3 > is set to in the config:RS232 menue. If the TRX is connected well, the > frequency which is shown at the K3 display should also appear on your PC > screen after the connection is established. To make sure that the keying > works well, you have to setup the K3 in the menue config:PTT-key to DTR or > RTS. HRD has to switch to the same setting once when started up. Now you > maybe need to configure your internet ro ut > er in the way that the port 7809 is routed to the said PC in both ways. To > transfer the audio I would recommend a programm called ipsound instead of > skype. It comes with the HRD-package. Just connect your K3 with two 1:1 audio > cables to the soundcard of the PC and run the ipconfig programm. You have to > make sure again, that the used port for the audio connection (default: ) > is also routed in both ways to and from the internet. At the remote PC > somewhere, just install HRD again and choose remote instead of a baudrate > when the menue with the connection dialoque comes up. There you need to > choose your TRX type again certainly. It works great! > > Have fun. > > vy 73 de Sascha, DH2SE > > > >> Hello, >> > > >> Has anyone been able to remote control the K3 from a remote PC ? The >> idea is to operate my station (K3) at home from a remote location (PC). >> Care to share your ideas ? >> > > >> Thanks >> Jerry, KE9I >> > > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 Time Keeper v0.1
David, Thank you for sharing! Win version work perfectly with my K3 #1212! (Win XP SP3) 73 QRO de Rudolf, HB9ARI David Fleming wrote: > I've had a few requests for the K3 time updater I mentioned the other day. > So I've made it available for download. > > Mac version (OS X 10.3 or later) http://sight.net/K3Time/K3Time.zip > > Windows XP/VISTA (maybe 98 not sure) http://sight.net/K3Time/K3TimeWin.zip > > It's very easy to use and should be self-explanatory. > > Select the appropriate serial port and baud rate the first time the program > is run. It will remember these settings, so they need to be set only once. > > To display UTC time, click the "UTC" checkbox. To return to local time, > uncheck it. Be sure the computer's system clock is set properly, and if > applicable, set for Daylight Savings Time. > > To setup unattended updates, click the "Auto-Update" checkbox. This will > automatically update the time on the K3 whenever the program is run (if the > K3 is attached and turned on, of course). When Auto-Update is enabled the > program will automatically send the current system time to the K3 and then > terminate after a 10 second delay. The delay allows time to turn off > auto-update if need be. On Windows, you could use "Scheduled Tasks" in the > control panel to set a time schedule for automatic execution of the program. > On the Mac, a cron job (crontab) could be used. Cronnix is a nice Aqua > frontend for cron if you're not familiar with creating crontabs from > Terminal. I'm not sure how well the K3 clock keeps time. I never use it. But > I would think updating the time once a week or even once a month would be > sufficient. > > Click the "Update K3" button to send the current system time to the K3. > > That's all there is to it. The K3 time will not be *exact* with the computer, > but it will get it close (within 0.5 second or so). I get the best results by > clicking the update button as soon as a new second begins. Waiting until late > into a second will result in the K3 being a second behind. Try clicking the > update button several times until you get a good visual sync. > > I've done very little testing of the Windows version. There could be bugs. > > The program works by sending a sequence of CAT commands to the K3. Clicking > "Update K3" begins this sequence: > > K31; // Enables K3 extended mode > MN073; // Enters CONFIG:TIME Menu option > DS;// reads VFO A display area (now displaying TIME) > > Parse DS; command response to get K3 HOUR, MINUTE and SECOND. > > Determine computer HOUR, MINUTE and SECOND. > > SWT13; // select SECOND > > UP; or DN; until K3 SECOND = computer SECOND > > SWT12; // select MINUTE > > UP; or DN; until K3 MINUTE = computer MINUTE > > SWT11; // select HOUR > > UP; or DN; until K3 HOUR = computer HOUR > > MN255; // exit menu > > DONE.. > > > > Enjoy, > > David, W4SMT > > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > > > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 Shuts Off On High Power-HELP!
Correction! There are 18.5A (instead of 20A) under 14.0V. I omit to subtract 1.5A for some external accessories! Sorry! 73, Rudolf Ian Maude wrote: > -.-. --.-N3TU -.-. --.- wrote: > >> My K3 is shutting off on high power. CW and SSB. It seems to be drawing too >> many amps and I am checking this on an external power supply (DAIWA PS-304). >> I get the same results when I am on the dummy load and when I am on the >> antenna. I didn't check six meters but here is the data. What's going on? Do >> I need to reset the whole radio? :-(( >> >> > My guess is that your power supply has gone AWOL. Check the voltage > from it on key-down. > > 73 Ian > > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 Shuts Off On High Power-HELP!
Ian, I've just done a test: 100W RMS (LP-100A) single tone 1500Hz sinus USB @7.035MHz into a 50ohms dummy load, 20A under 14.0V (at K3 power terminals) K3 #1212 73 QRO fr Rudolf, HB9ARI Ian Maude wrote: > -.-. --.-N3TU -.-. --.- wrote: > >> My K3 is shutting off on high power. CW and SSB. It seems to be drawing too >> many amps and I am checking this on an external power supply (DAIWA PS-304). >> I get the same results when I am on the dummy load and when I am on the >> antenna. I didn't check six meters but here is the data. What's going on? Do >> I need to reset the whole radio? :-(( >> >> > My guess is that your power supply has gone AWOL. Check the voltage > from it on key-down. > > 73 Ian > > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Noise going up with reducing XTAL filter BW
Julian, Thank you for the quick replay! May be the filter gain is too high for low BW and i get an over compensation? I will look at that this evening. 73 QRO de Rudolf, HB9ARI Julian, G4ILO wrote: > > hb9ari wrote: > >> Is it a Filter gain setting to modify in my K3? >> >> > Yes, there is an FLx GN setting in the menu. Normally you need to increase > it a dB or two for the narrow filters to compensate for the extra insertion > loss. > > - > Julian, G4ILO. K2 #392 K3 #222. > http://www.g4ilo.com/ G4ILO's Shack http://www.g4ilo.com/blog.html G4ILO's > Bloghttp://www.g4ilo.com/kcomm.html KComm for Elecraft K2 and K3 > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Noise going up with reducing XTAL filter BW
Tim, Thank you for info; i will look for the current filter gain values and adjust them if necessary. 73 QRO de Rudolf, HB9ARI Tim Heasman wrote: > Hi Rudolf, > > Just checked the gains on my 1 kHz and 400 Hz filters they are 3 and 8 > dB. I also checked the audio noise using the dBV display and the noise > reduced each time I reduced the bandwidth from 2.8 kHz down to 200 Hz > and lower. > > Use the K3 utility to check the gains. > > > 73 > > Tim > > gm4lmh > > - Original Message - From: "hb9ari" > To: "elecraft" > Sent: Monday, February 23, 2009 3:44 PM > Subject: [Elecraft] Noise going up with reducing XTAL filter BW > > >> Hello, >> >> Can somebody explain to me why the "audio" noise >> increase when i select a lower BW XTAL filter? >> For example going from 1k8 to 400Hz. >> >> As i use often BPSK31, the "blue" background >> of my waterfall (without signal present) go >> into the "yellow" color; (using Digipan with >> "standard" waterfall colors). >> I was expecting a "constant" level or a noise >> reduction, but not an increase. >> >> Is it a Filter gain setting to modify in my K3? >> >> Mny tnx in advance! >> >> 73 QRO de Rudolf, HB9ARI >> >> PS At 66 yo, it's not to late to learn something! >> >> >> __ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft@mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html > > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Noise going up with reducing XTAL filter BW
Hello, Can somebody explain to me why the "audio" noise increase when i select a lower BW XTAL filter? For example going from 1k8 to 400Hz. As i use often BPSK31, the "blue" background of my waterfall (without signal present) go into the "yellow" color; (using Digipan with "standard" waterfall colors). I was expecting a "constant" level or a noise reduction, but not an increase. Is it a Filter gain setting to modify in my K3? Mny tnx in advance! 73 QRO de Rudolf, HB9ARI PS At 66 yo, it's not to late to learn something! __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 TX Audio Response
Hello, Interested by the K3 TX audio response, i've followed a good idea from Larry (N8LP) to get an answer. Using LP-PAN followed by PowerSDR as display and SpectrumLab as generator, i've done 2 screen captures uploaded in the "Photos" section of the LP-PAN group. (Not found where to upload pictures in this group?) We can see the 2 "peak spectrum", one with white noise as audio source and the other with a 50 s sweep from 0 to 3000Hz. (Mode USB, input LINE and "flat" TX equalizer). I've now a better idea of the audio response. (Until the I/F output...) 73 QRO de HB9ARI, Rudolf __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Using USB mode for PSK31 rather than DATA A
Steve, With my K3 , i use USB for PSK31 and i've set the button "PWR" to 100W, the "LINE" (rear line input) to 50 and i adjust the output level of my sound card with "Tune" mode of Digipan (a ~ single tone) to get ~ 50W average output; during PSK31 transmission, i've an average output power between 15 and 25 W depending upon transmitted text. Sometimes, i do a little adjustment by lowering the audio drive to NEVER get an average output power over 25W (measured with LP-100A with a SWR <= 1.4:1 and 1.1:1 on the K3 (ATU ON) ) I do test with a 2nd instance of Digipan running with a 2nd TX/RX (FT857) and a 2nd sound card; i get an IMD between -24 and -28dB; it should be a little better "ON AIR", because i've a little "proximity" effect with my "Winter" antenna at only 3 meters from my FT857at the balcony. Anyway, these values are not too bad and are a little bit better than the average of received stations (between -16 and -24dB). 73 QRO de Rudolf, HB9ARI PS May be it's not the best setup, but it work for me and i announce a 25W to my correspondents. steven.zabarn...@notes.udayton.edu wrote: > No I did not turn off compression. I will give this a try. Has anyone else > tried using PSK31 with USB mode? > > >> Did you turn compression off? >> >> Bob NW8L >> > > On Mon, Feb 16, 2009 at 12:12 PM, > wrote: > >> After all this discussion of power control in DATA A mode vs SSB, I >> > decided > >> to try using PSK31 with USB mode, rather than DATA A. I changed the MIC >> > SEL > >> menu item to Line IN and adjusted the ALC meter to 4-5 bars using the MIC >> GAIN control. The PSK31 power output appeared to closely match the K3 >> > power > >> setting. Unfortunately, I received horrendous feedback about the widthand >> IMD of my signal -- when I returned to DATA A mode, my signal width and >> > IMD > >> returned back to acceptable values. >> >> Steve N9SZ >> > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] FLx ON cmd
Jeff, When reading Crystal Config from K3 utility, i've remarked that the configuration between USB an LSB was exactly reversed. In my case, it's like the "ALT" button were ignored. As i use mostly USB for digital modes, (i prefer this mode as DATA A), i set manually many times my 5 filters ON. For LSB, only 2k8, 2k7 and 1k8 are selected. With selection of the remaining 0k4 and 0k25 always in LSB mode and writing the new configuration to the K3, USB is now ok with 5 filters, also after a manually power down. I've no explanation for this behavior, it's as if "ALT" button status were ignored? (always in my case!) The good point is that i've now the correct filters configuration for USB! 73 QRO fr Rudolf, HB9ARI Jeff Wandling W7BRS wrote: > I notice something similar, I think. If this is a FAQ, I don't recall. > > On power up, NR is always off even though I had turned the K3 off with NR > on. > > Between shutdowns, it persists NB, but not NR. I don't understand why. > Same with Notch settings. Those settings seem to not persist between > shutdowns. It just seems to work the way it works.It may be the way > Eric and Wayne like it. I don't know. > > If it's already documented somewhere which settings are persisted between > shutdowns and which are not, then I withdraw the observation. > > If it's not documented in the manual which settings are persisted between > shutdowns and which are not, then it may be helpful to explain that. And > as a bonus perhaps explain the rationale for that design. > > Running MCU 2.67 > > -jeff > > > On Fri, 6 Feb 2009, hb9ari wrote: > > >> Hello, >> >> After choosing the filters used for each mode with >> the FLx ON command, settings are lost when i power >> OFF my K3. >> >> What i'm doing wrong? >> >> Thank you for your help. >> >> 73 QRO fr Rudolf, HB9ARI >> >> PS K3 #1212 uC 02.78 Filters: >> FL1 2k8 >> FL2 2k7 (original) >> FL3 1k8 >> FL4 0k4 >> FL5 0k25 >> __ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft@mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> >> > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] FLx ON cmd
Hello, After choosing the filters used for each mode with the FLx ON command, settings are lost when i power OFF my K3. What i'm doing wrong? Thank you for your help. 73 QRO fr Rudolf, HB9ARI PS K3 #1212 uC 02.78 Filters: FL1 2k8 FL2 2k7 (original) FL3 1k8 FL4 0k4 FL5 0k25 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 Filter response
Mike, Thank you for the explanation; i understand now that this false "anomaly" is present with the 2k7 and 2k8 filters. May i "abuse" of your knowledge to explain to me the following behavior : During receive, the 2k7 and 2k8 filter seem to give a ~ 300 Hz at -10dB frequency; it's ok for my use; during transmit, the same filters seems to give a ~ 500 Hz at - 10dB relative to the 1 kHz attenuation; i've tried to shift the bandpass, but naturally, the high frequency is shifted too. As i work essentially with digimodes, i can accommodate with that; but what is the cause of this difference ? (coupling capacitor, etc). I've tried to "play" with EQUALIZER, but the ALC "bars" begin to get non desired values... 73 QRO fr Rudolf, HB9ARI AD6XY wrote: > The "anomaly" is not really an anomaly, it is just the other side of the down > conversion oscillator. For a filter to pass an SSB audio signal the passband > needs to go down to 300Hz or so. For this to happen the attenuation for 0Hz > and image frequencies can't be that far down. That is all it is though it is > probably better with the 8 pole filter. It can also be eliminated by raising > the centre frequency, at the expense of bass response. Unfortunately I don't > think you can do this on transmit, though perhaps you could adjust your > filter offset. That would not work with the USB/LSB inversion below/above > 8MHz. > > Currently the filter is centred on 1.5kHz by default. The best place for it > but if you narrow it down with DSP it is probably better to raise this to > 1.8kHz. I am not sure how the filter shift relates to the DSP filter and the > crystal filter, i.e. which is adjusted, probably both. > > However, I find I always need to reduce the filter centre frequency to > maintain intelligibility as I narrow the DSP bandwidth. So to make sense of > a signal within 1.8kHz I need a 1kHz centre frequency. That is not what I > would expect which makes me wonder what the shift control actually does. > > > > Mike > ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 Filter response
Hello, I wrote this message directly from my e-mail software as i do habitually. As most of the time i use Yahoo groups, i've a link for files, pictures uploading. I know i've some "memory" problems (66 y/o) but i never used n2.nabble.com. By looking your 2k7 filter plot, i saw that my "anomaly" (the little peak at the right part) is also present on your plot. For me it's no more a "local" anomaly and the question is partially closed. 73, Rudolf AD6XY wrote: > I am not sure where it ends up but if you use the web to write you will see > an "upload file" button and an "add link" button. > http://n2.nabble.com/file/n2191105/Clipboard01.jpg Clipboard01.jpg > ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 Filter response
Hello, I've traced the 2.8 kHz filter response with Mike's software and i get a little "anomaly" i can't explain me. I've a *.bmp file (~825 kB) or a *.txt file (~2kB). How can i "show" this unexplained (for me!) anomaly? I don't find a file upload procedure for this group. Thank you for your help. 73 QRO fr Rudolf, HB9ARI ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 Filter Plots
Hello Mike, Just to thank you for the very useful software. A very clever procedure around the K3! I open the saved *.txt file in Excel and substract the central frequency to get a +/- frequency scale display and set the attenuation scale with 6 dB grid to get easily the -6 dB and -60 dB points. 73 QRO fr Rudolf ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 pwr out on digimodes
Peter, I don't read your message before sending my "very long" mine but i totally agree with you! I can imagine that digimodes software generate ± complex audio signals, then we can adjust this audio level to allow TX chain, including PA, to work in a linear zone. (I admit that we should be able to "anticipate" the maximum "peak" level...) Many years ago, i had a friend who was a fan in live music recording; when possible, he asked to the musicians to play just the loudest (fortissimo) part before the public representation; he adjust then his recorder, an old Revox, just before clipping; with this procedure, he was able to get the best dynamic with his "non professional" material. 2 cents more... 73 QRO fr Rudolf, HB9ARI Peter Connors, F5VNB wrote: > Joe Subich, W4TV wrote: > >> Absolutely not! When conventional rigs are generating ALC >> their final amplifiers are ALREADY in compression and they >> are generating IMD in the PSK31 signal. >> > > A bit sweeping, Joe. Surely any sane engineer would put the onset of > system ALC at a level *before* the PA goes into compression? (Such > systems would not include grid current derived ALC from some class AB2 > PA of yesteryear.) > > To avoid the well-known problems of selecting suitable ALC time > constants and loop gain, the K3 performs ALC at the DSP level: for any > signal, SSB or PSK31, doesn't this demand a flat transmit passband in > the system following the processing? > > Good thread! > > 73, Pete F5VNB/G4PLZ > ___ > Elecraft mailing list > Post to: Elecraft@mailman.qth.net > You must be a subscriber to post to the list. > Subscriber Info (Addr. Change, sub, unsub etc.): > http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/subscribers.htm > Elecraft web page: http://www.elecraft.com > > ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 pwr out on digimodes
Hello, I'm not a specialist, but this very interesting discussion remember some points during my past professional activity. I was employed in a society involved in the design and fabrication of RF link for broadcast TV cameras. ( My job was limited to camera remote control via separate UHF link(hard&firmware), PCB design and some help with RF measurements). The modulations used were QPSK, 16QAM and 64QAM (2K carriers, 8MHz BW) with descending robustness and ascending bit rate. According link conditions and/or production requirements, the optimum "mode" was selected. As i remember, we counted for a minimum of 10 dB crest factor and the amplifier plugged at the camera was designed to output over 40 dBm with 1 dB compression, but the max power allowed was (only) 28 dBm. We used also ultra-linear class a PA and this minimum 10 dB margin was always the rule. ( I remember a 50W output COFDM PA designed for 2.3 to 2.7GHz, a "monster"!) We never spoke about ALC; the correct input level was adjusted with some attenuation if necessary and the the signal quality analyzed with a spectrum. I had access to the "driver" (max 1W COFDM) schematic and no ALC circuit is present. From FPGA generating I/Q numeric, trough DA converters, modulation, mixers, etc all levels were defined with some tolerances for fabrication, but no ALC We only do power measurements with bolometer, because peak power measurement was not an easy task. The link quality was evaluated by BER before and after Viterbi correction. Gain linearity was specified to be under 1dB for a 8MHz spectrum. (and other parameters like group delay, etc) On the RX side, the specifications, to get a "freeze" free MPEG2 video, was a minimum input RX power level of -93dBm( QPSK mode), -88dBm 16QAM and -83 dBm (64QAM).. For the (my) K3, i must admit that the TX linearity i measured with 2.8k or 2.7k filter is not so good; may be one of the reason, with RX, i've difficulties to decode ham digital pictures with good RF levels? but no problem with DRM using K3 IF output, LP-Pan and DREAM.(i will look for this pointi have measured the 250Hz and 2.8kHz filters with the software proposed by KS7D and the 2.8kHz is far to have a good ~ flat usable width...) I can understand that the costs are not of the same order, but the required bandwidth and the video/audio broadcast requirements not the same too! As you say, just my 2 cents! 73 QRO fr Rudolf, HB9ARI Joe Subich, W4TV wrote: >> No, I do not misunderstand what ALC does. Perhaps I am just >> not very good at explaining what I am trying to say. I >> realize that ALC can only reduce the gain. That is why it is >> necessary to set the audio drive level so that you get a >> little bit of ALC across the whole passband range that you >> want to use. Then, the ALC will be able to reduce the gain by >> the necessary amount so that the RF output is constant across >> that passband range. >> > > Absolutely not! When conventional rigs are generating ALC > their final amplifiers are ALREADY in compression and they > are generating IMD in the PSK31 signal. PSK31 can not have > ANY compression or clipping without causing increased IMD. > Increasing the drive to the point that a comventional rig > generates some level of ALC at all points virtually assures > the generation of unacceptable IMD at most frequencies in > the IF passband. > > >> The FT-817 is not capable of 15W. But that is beside the >> point. >> > > OK, do it at 5 watts ... > > >> What would this experiment prove? I know as well as you do >> that it would not be identical. That's why I am saying that >> some form of level control needs to be in operation across >> the whole of the passband you wish to use. >> > > That's my point exactly. The K3 does not provide level control > across the passband it provides a constant output from the DSP > modulator (15 KHz IF). > > >> A small amount of ALC with a slow time constant will not harm >> the IMD in PSK31 mode. >> > > Wrong! ANY COMPRESSION OR CLIPPING will effect the INTENTIONAL > amplitude shaping in the PSK31 signal designed to prevent IMD > and control the banwidth of the transmitted signal. So called > IMD is the result of a non-linear amplitued response in the > audio/IF/RF chain. PSK31 drive can be thought of as a signal > that has been "predistorted" in such a way to cancel the > modulation sidebands. If that (amplitude) predistortion is > lost due to compression or clipping at any point in the > transmitter chain, the result is the appearance of the normal > modulation sidebands (known as IMD). > > > > > > &
Re: [Elecraft] K3 pwr out on digimodes
Dave, I followed the problem you described on the group and this is the reason i do some measurements around the power output because i was a little bit anxious! At the beginning, my only 2 "ham" references were my MiniVNA output (calibrated at my office at -2.04 dBm , 7.040MHz with 50 Ohms load) and a 25W MCE/Weinschel bi-directional attenuator (calibrated as 50.1 Ohms and 29.83 dB attenuation) These 2 "references" have permitted to "verify" the "coupling" factor of my LP-100A RF Sensor as 29.12 db for the 29.1 dB used by Larry!! The LP-100A is now my 3rd "ham" reference instrument. I also do some peak/average power ratio measurements for different digi modes and results were ok between 0 db (FSK) and 15 dB (EasyPAL during digital picture transmission) (the 2 extremes "tested" with software running in my PC). After that, i do also power output measurements with and without ALC (with a lot of caution!) for the K3 and.found something like ~ 1dB more power without ALC (ONLY for TESTING!) With ALC ON, i measured a mean error < +/- 0.1 dB between 1W and 12W and < 0.45 dB between 13W and 20W. (may be due to the activation of the PA?) During all these measurements, i have my "old" TDS 220 scope (1Gs/s 100MHz BW) connected at my -30dB "dummy load" output for monitoring in case of distortion and/or oscillation but all was ok and i'm very satisfied with these results.The measured P-P values divided by 2*SQR(2) gave me a good confirmation for the RMS value. One more (and last precision...), all measurements were done with a sinus audio single tone, except for peak/average ratio measurements done with some available digi modes. 73 QRO fr Rudolf, HB9ARI Dave G4AON wrote: > Rudolf, the problem is not one associated with the accuracy of the K3 > meter, but one of the ALC being fairly "slack" with the end result that > a fluctuating audio input from speech or from a sound card on many data > modes results in widely varying power, unfortunately often exceeding the > level set by the power control. An oscilloscope or peak reading > Wattmeter, such as the LP-100, will catch and display the peaks far > better than can be read from the K3 meter. > > I hope Elecraft continue their efforts to fix this irritating problem, > as not only does it make the use of some digital modes tedious, but > running a linear on SSB results in power levels which often exceed the > legal power limit - even when being very careful to set the drive level > (UK power limit 400W, using an Acom 1000 which does not use ALC feedback). > > 73 Dave, G4AON > K3/100 #80 > - > > > I've done some measurements some time ago with my K3 #1212 and i had the > following values: > > K3 power set to 20W, f=7.040MHz 25W 50 Ohms dummy load MCE/Weinschel > LP-100A Wattmeter > mode USB 1 kHz sine audio at rear line-input, level adjusted to have the > desired ALC bar configuration > > Rudolf, HB9ARI > > ___ > Elecraft mailing list > Post to: Elecraft@mailman.qth.net > You must be a subscriber to post to the list. > Subscriber Info (Addr. Change, sub, unsub etc.): > http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/subscribers.htm > Elecraft web page: http://www.elecraft.com > > ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 pwr out on digimodes
Benson, I've done some measurements some time ago with my K3 #1212 and i had the following values: K3 power set to 20W, f=7.040MHz 25W 50 Ohms dummy load MCE/WeinschelLP-100A Wattmeter mode USB 1 kHz sine audio at rear line-input, level adjusted to have the desired ALC bar configuration ALC bar(s) Mesured [W] (avg) 0 8.16 1 blinking 9.4 1steady+1blk 15.95 2steady+1blk 20.72 3steady+1blk 21.2 These values correspond to the above mentioned set-up (K3 #1212 uP rev 2.78) and displayed on the LP-100A with RF head #1143 73 QRO fr Rudolf, HB9ARI Benson wrote: > I do not have the benefit of an external wattmeter at the moment and > frequently use digital modes, esp. JT65A. Assuming I want to transmit > 25 W or less, if I have PWR set at 25 and adjust the mic gain for ALC > just under 1 bar (basically just until one bar disappears), > approximately how much power would be transmitted? The resolution of > the 100W rf scale doesn't really help at low levels. > > > ___ > Elecraft mailing list > Post to: Elecraft@mailman.qth.net > You must be a subscriber to post to the list. > Subscriber Info (Addr. Change, sub, unsub etc.): > http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/subscribers.htm > Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] k3 SWR readings seem generous
Don, Thank you for the explanations; the difference between external SWR and K3 SWR without ATU should be less then the differences announced ? 73, Rudolf, HB9ARI Don Wilhelm wrote: > Rudolf, > > There is no way to do that external to the K3. It would only be > possible if one were to dig into the hardware and insert the external > wattmeter into the signal path between the KPA3 and the KAT3. > Unfortunately, that would require cutting traces inside the K3. > > 73, > Don W3FPR > > hb9ari wrote: >> Just a dumb question: >> How do you insert the external SWR meter on the same node as the K3 >> internal SWR bridge? >> I don't find an easy solution for my own comparisons. >> >> HNY and 73 QRO, >> >> Rudolf, hb9ari >> > ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] k3 SWR readings seem generous
Just a dumb question: How do you insert the external SWR meter on the same node as the K3 internal SWR bridge? I don't find an easy solution for my own comparisons. HNY and 73 QRO, Rudolf, hb9ari ab2tc wrote: > Just for the record, I have excellent agreement between an external > (MFJ-949E) SWR/Wattmeter and the indication on the K3, both at excellent SWR > and poor ones such as those offered by my G5RVs when the external tuner is > bypassed. Poor agreement here should not be considered normal. > > > Jeff Kinzli N6GQ wrote: > >> Mike, I see the same thing. My Autek says my antenna is 2.5:1, the K3 >> (#476) says 1.2:1 at the same frequency (numbers mentioned were on >> 40M). >> >> >> >> >> > > > - > AB2TC - Knut > ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Rear Line Input
Hello, Is it possible to use the rear line input with USB/LSB modes? K3 #1212 An Happy New Year! 73 QRO fr Rudolf, HB9ARI ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] PTT RLS Found
Hello, Found ok in release notes ! 73, Rudolf ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] PTT RLS
Hello, In "CONFIG "menu, i've modified, by error, the "PTT RLS" parameter; old value was ??? and now i've set to "002". I don't find on my K3 (#1212) manual rev C1 the use of this parameter. I know i could reset to the previous parameter setting, but i would prefer to know the significance of "PTT RLS". Thank you for your help. An Happy New Year! 73 QRO fr Rudolf, HB9ARI ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Fwd: Re: [Elecraft] K3 is really a computer radio]
not sure it was the correct "Reply" nor "Sender" addresses...
--- Begin Message ---
Rob,
I agree with you.
I use also a FT857 (no D model) and i must say that i prefer the
controls/buttons configuration
of my K3. I must admit that the front panel size is not the same for
these 2 TRX!
I will just say that i prefer the syntax of the 857 menus with more
"explicit" text as the K3.
For a non English speaking OM, some abbreviations are not easy to
understand and the Owner's Manual
is indispensable (i speak for me...). Fortunately, for "current" use,
MENU/CONFIG access is not necessary in my case.
But for front panel controls, i find the K3 very well designed. My
most used switches/buttons are the main VFO,
AF gain (i just have preferred to have it under the RF gain but it's a
little "detail"), SHIFT/WIDTH filter ( i greatly appreciate
the "automatic" selection between 2.8, 1.8, 0.4 and 0.25 kHz filters
during a WIDTH modification) and BAND switch.
I also use often the ANT (for switching between 2 antennas) and ATU TUNE
(one of my antenna is externally
tuned and the internal tuner is used for the other).
As i mostly work with digital modes (in conjunction with VOX mode),
i appreciate the ease of switching between SWR/RF meter ("normal" use)
and CMP(not used for me)/
ALC to verify if all is OK between PSK and JT65 (very) different digital
modes.PWR is also often used to adjust output power
according mode/conditions.
To close my bandwidth consuming message, i can say that i'm very happy
with Elecraft switches/controls design, hardware and firmware.
73 QRO fr Rudolf, HB9ARI
(65 "turns at PA", ham since 1970)
Rob May wrote:
I don't find any difficulty discerning between "push" and "push and hold",
that's been a feature of many consumer electronics for years. After 2 months with the K3 I'm still
not familiar with all the features, menus and buttons, because I'm having more fun on the radio
than I've had in years. The radio is just a joy to use. I don't find that switching modes or
bands is a problem. Sometimes I have to fish around for a setting in the menus or look at the
manual, but it's not as difficult as my FT-857D! As for a computer control program try Ham Radio
Deluxe, the developer, Simon Brown, owns a K3 and HRD does a fine job. No need for Elecraft to
reinvent the wheel.
Rob
NV5E
From: [EMAIL PROTECTED]
To: elecraft@mailman.qth.net
Date: Sun, 19 Oct 2008 05:17:28 +
Subject: [Elecraft] K3 is really a computer radio
After two solid days of using the K3 to chase
DX, changing bands and modes often,
I conclude that the K3 should be mated
with computer control for real flexibility in
this application of use. The front panel is
mainly for DXpeditions that stay on one
freq/mode for long periods. Otherwise,
I get a new band, or two, when I want to
activate the VOX, as a typical example of
the careful touch needed to get either
one small push or a longer push...
and the mistaken change also cancels
out my selection of Split when I finally get
back to the desired band. More buttons to
CAREFULLY push.
And without using the complex and easily
forgotten scheme of programming the
memories as band/mode change agents,
going from CW band to phone means pushing
the excursion speed button (Coarse, Fine, etc.),
spinning the tuning knob frantically and changing
the mode button with a slight push, not a heavy one.
Yes, Elecrafters, I know there is a well-known
work-around, but I have now concluded that the K3
front panel is vy difficult and that complete computer
control is the answer, at least for DX chasers and
those who make many band/mode changes in a
short period of time.
I suggest Elecraft market a computer program for
the K3 asap, or at least make recommendations of
those that seem best. But then, I ask myself, do I
want a FLEX substitute? 73,
Charles Harpole
[EMAIL PROTECTED]
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_
Store, manage and share up to 5GB with Windows Live SkyDrive.
http://skydrive.live.com/welcome.aspx?provision=1?ocid=TXT_TAGLM_WL_skydrive_102008___
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--- End Messa
