[Elecraft] Noise Blanker Wish List.
Greetings Folks, An "Evasive" noise blanker is on my wish list. This is the system where the noise blanker receives noise from "out of band" and none of its circuits (except for its input "tap off" and the IF Gate) are in the main signal path. Best done when you can tune the noise blanker receiver a little to avoid strong out of band signals (ie evasive). The result is that your crosstown "friend" at S9++ and 1 kc up does not "key" the noise blanker. The idea has been around for a long time, Collins used it but they picked up noise at low VHF. Bit more complex but it really pays off I've found. 73, Geoff. ___ 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] Noise Blanker Wish List.
The Trio TS180S had this scheme of noise blanker as well. 73 Stewart G3RXQ On Fri, 11 Feb 2005 08:55:13 -, Geoffrey Mackenzie-Kennedy wrote: > Greetings Folks, > > An "Evasive" noise blanker is on my wish list. This is the system where the > noise blanker receives noise from "out of band" and none of its circuits > (except for its input "tap off" and the IF Gate) are in the main signal > path. Best done when you can tune the noise blanker receiver a little to > avoid strong out of band signals (ie evasive). The result is that your > crosstown "friend" at S9++ and 1 kc up does not "key" the noise blanker. The > idea has been around for a long time, Collins used it but they picked up > noise at low VHF. Bit more complex but it really pays off I've found. > > 73, > > Geoff. > > ___ > 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] Using K2 rant input
Hi Vic, Have you thought of just switching the rx antenna out of circuit whilst transmitting? Unless you are using fast break-in, a small externally switched relay should solve your problem. If you are feeling particularly paranoid:-), then use the same relay to earth the rx input via a 50 ohm resistor at the same time. gl, Trev G3ZYY In message <[EMAIL PROTECTED]>, Vic Rosenthal <[EMAIL PROTECTED]> writes I am experimenting with using the K2 rant input (that's receiver antenna, not verbal outburst). I want to use my 20-meter quad as a receiving antenna when I am transmitting on 160 with an inverted L. It is a lot quieter. The L is right next to the quad, so a lot of voltage is induced in the quad when transmitting with high power. I tried putting a couple of back-to-back diodes and a 50-ohm resistor across the quad feedline. I put my scope across it and found that the signals from BC stations, etc. were well below the clipping level of the diodes, and received signals were plenty strong with the K2 preamp on. So far so good. Transmitting resulted in the clipping level being reached with about 100 watts output (I have an external amplifier capable of 1500 watts). All of a sudden, I realized that I have built a huge harmonic QRM generator! If I use this setup, as soon as the diodes clip they will generate harmonics all the way up into VHF, which will be re-radiated by the quad (it will do a real good job on the 4th harmonic, near 20 meters, too). Am I right? If so, this isn't a good way to do what I want. Does anyone know a) how much RF voltage can be safely applied to the K2 rant input when transmitting, or b) how to protect the input without making harmonics? I thought of using the diodes after a lowpass filter that cuts off around 2.5 MHz, but this is getting complicated. -- Trevor Day UKSMG #217 www.uksmg.org ___ 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] Re: K1-4 Filter Board New Trimmer Caps-Final
Hi everybody, Another "experienced" ham comes to the room with his tail between his legs. EE in college and over 25 years in electronic field service, and what do I do? Foul up, of course. I did read the errata before I sent the original email, and everything else. I checked those caps 3 TIMES before I called Gary. I was sure I was right! That should have been the first signal something was terribly wrong. You were all correct, and Gary, of course was correct (and unbelievably patient) and I apparently am no longer capable of distinguishing a "flat" side on a silk screen. I need to take more and longer breaks. By the way, I did finish the 4 band filter board last night with the last of the transformers. (I counted all the windings on all transformers and coils at least 5 times each, so you know I probably messed them up too!) Kidding aside, I am actually loving this, and I will be a little let down when I am done. Of course, there's no telling when that will be. Thanks again. Vin KR2F "I've cut this wire 3 times, and it's STILL TOO SHORT" mail2web - Check your email from the web at http://mail2web.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] Using K2 rant input
Vic, I don't have the full answer, but can offer this 'food for thought' -- The Rant input (when active) is connected to the output of the K2 T/R switch when in use, and when the Rant is not being used that point is subjected to the full output of the base K2 output collector RF voltage - so I would conclude that it should handle up to 15 watts of RF induced onto the Rant input jack, but OTOH, I have not tested it. 73, Don W3FPR > -Original Message- > > I am experimenting with using the K2 rant input (that's receiver > antenna, not > verbal outburst). > > ... > Am I right? If so, this isn't a good way to do what I want. > Does anyone know > a) how much RF voltage can be safely applied to the K2 rant input when > transmitting, or b) how to protect the input without making harmonics? I > thought of using the diodes after a lowpass filter that cuts off > around 2.5 MHz, > but this is getting complicated. > > -- > 73, > Vic, K2VCO > Fresno CA > http://www.qsl.net/k2vco > > ___ 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] Using K2 rant input
On Feb 11, 2005, at 12:13 AM, Vic Rosenthal wrote: I am experimenting with using the K2 rant input (that's receiver antenna, not verbal outburst). I want to use my 20-meter quad as a receiving antenna when I am transmitting on 160 with an inverted L. It is a lot quieter. The L is right next to the quad, so a lot of voltage is induced in the quad when transmitting with high power. Vic, I think you may be missing the point of using a separate receiving antenna on noisy bands like 160m. While the 20m quad may be quieter, that's likely due to the smaller size and gross impedance mis-match of the 20m antenna on 160m. The 20m quad is probably quieter for ALL signals and noise alike, which doesn't help. The key to using a separate receiving antenna on 160m is NOT just to have a quiet, lossy antenna -- but to have a quiet, lossy, DIRECTIONAL antenna. The idea is to improve the signal / noise ratio by limiting the noise intercepted at the antenna. Since noise is generally thought to come from all directions, using an directional antenna makes signals appear stronger. The Beverage antenna is probably the most popular receiving antenna in this service, but requires a lot of real estate. For 160m, a Beverage would be about 500 feet long. For those of us without room for such an antenna, the flag, pennant and K9AY loop are good substitutes. These antennas have a cardioid (heart-shaped) pattern, with a strong null in the opposite direction. Magnetic receiving loops area also useful, particularly for nulling out strong local noise sources. All of these receiving antennas should be mounted well away from the transmitting antenna, to avoid the type of coupling you're having trouble with now, as well as to avoid noise reception due to mutual coupling. Since these antennas are intentionally lossy, it usually doesn't take that much distance to avoid transmitter overload. Bill Coleman, AA4LR, PP-ASELMail: [EMAIL PROTECTED] Quote: "Not within a thousand years will man ever fly!" -- Wilbur Wright, 1901 ___ 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] CW tone
Hi all, I have seen this so many times but have been bitten by it. I have just started to get back on the key and my tone is awful. Raspy and buzzy. The tone on Tune is fine. SSB is great. I have moved the PSU well away (Revex 30A, Regular PSU) and even tried using one even further away, easily 5 feet and about 3 feet above it (Farnell Switch Mode). I have the same problem with both. I have removed the PA and tried but still the same. Ideas would be appreciated. Many thanks Ian -- Ian Maude G0VGS Morecambe Lancs UK | [EMAIL PROTECTED] Sysop of GB7MBC, the Morecambe Bay Cluster Running Linux and DXSpider | K2 #4044 ___ 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] K1 # 1423
test 73, Ty __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.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
[Elecraft] K1 Polyfuse
Noticed that Wayne just made a reference to adding a polyfuse to a KX1. I added one to K1 # 1423. Details at: http://tyrrell.us/amateur/k1modpolyfuse.html. Comments please. 73, Ty __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.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
[Elecraft] Older K2??
Hello all, I am considering the purchase of an older K2 with a 1400's serial number. It has the following options in it. SSB, 160, NB, Audio Filter / Clock, Battery, and probably a couple I've forgotten. \My question is, with all of the updates made to the newer K2's, is this a good purchase? The price should be around $700 or so. Supposedly it looks new and works perfect. Can the DSP option be added? Can the 100W option be added? Any thoughts would be most appreciated by this newbie. Thanks so much for the help Jeff WB8QYT [EMAIL PROTECTED] ___ 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] K2/KPA100 problem
Hi All, The K2 appears to work on all bands, albeit only 6 to 8watts out on 15/12/15m, which I presume is ok, but maginal. When I connect up my KPA100, output is 100w plus on the lower bands, but on 15/12/10 m it is very low, and the system is self-oscilating around 100MHz and the frequency is unstable. I would think that there was a problem in the KPA's LPF for those bands, but I can't find anything wrong. I use Toroidguys inductors, and all seems well as far as I can check. Has anyone had a similar experience I wonder. Does the low output from the K2 cause this problem Thanks 73 Bryan G3AKF ___ 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] test message
test message ___ 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] Older K2??
Jeff: First, if you don't want to add the KPA100 right away, you really needn't do anything if you don't want (and if the K2 is really working just fine). However, eventually you are going to want to take advantage of some of the nice mods that have come along since 1400s were made. Go to the Elecraft webb page and download the A-to-B modification document. You will find there all the major mods that will bring your K2, if you get it, up to more current standards. Check to see if any have already been made. Assuming not, pick out the ones that are either of clear interest to you or are necessary for add-ons (like the KPA100) that you may want to make. That will give you an idea of what is ahead of you. Some of them are necessary for the KPA100. As to the DSP option, I believe (and someone will surely correct me if I'm wrong), that you can add it to your K2 as stands. Doing the A-to-B mods is going to be easier than building from anew, but it is still going to involve some significant effort. And you will be working with a unit that is new to you, so it will be a more awkward experience for you than for someone who has built the unit to begin with. Thus, were I you, I would seriously consider getting a new K2 and doing the build yourself. Then you will automatically have all the updates, and you will also have one of the greatest building experiences, and all the fun and satisfaction that goes with it, that you'll ever have in ham radio. best wishes, dave belsley, w1euy On Feb 11, 2005, at 9:54 AM, Jeff Popa wrote: Hello all, I am considering the purchase of an older K2 with a 1400's serial number. It has the following options in it. SSB, 160, NB, Audio Filter / Clock, Battery, and probably a couple I've forgotten. \My question is, with all of the updates made to the newer K2's, is this a good purchase? The price should be around $700 or so. Supposedly it looks new and works perfect. Can the DSP option be added? Can the 100W option be added? Any thoughts would be most appreciated by this newbie. Thanks so much for the help Jeff WB8QYT [EMAIL PROTECTED] ___ 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] Older K2??
Jeff, I will not comment on the value/price, but you can compare it with the price of new kits. Being an earlier serial number, consider the work you would have to do to bring it up to level (assuming you would want to do that). The prices for the A to B mod kit, firmware upgrades, and other mod kits provided by Elecraft may be desired. There is nothing wrong with the performance of earlier serial number K2s, but if you want the latest level (which you would get with a new kit), you may want to consider the cost of upgrading into your calculations. Certainly the KPA100 and the KDSP2 can be added. There are mechanical considerations though, the Audio Filter and the KDSP2 fit into the same place, so you will lose the KAF2 if you put in the KDSP2. Similarly, the internal battery is mounted in the top cover and is displaced with the installation of the KPA100 (although you can keep the QRP top cover with battery around for portable QRP operation if you would like that). All in all - it may be a good price or it may not be - it depends on your desires. 73, Don W3FPR > -Original Message- > > Hello all, I am considering the purchase of an older K2 with a 1400's > serial number. It has the following options in it. SSB, 160, NB, > Audio Filter / Clock, Battery, and probably a couple I've forgotten. > \My question is, with all of the updates made to the newer K2's, is > this a good purchase? The price should be around $700 or so. Supposedly > it looks new and works perfect. Can the DSP option be added? Can the > 100W option be added? Any thoughts would be most appreciated by this > newbie. Thanks so much for the help > Jeff WB8QYT [EMAIL PROTECTED] > ___ 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] Elecraft Autotuner
Hi Don, Sounds interesting, I would like to see how it's going. I'm interested in the control circuitry. 73, Julius n2wn ___ 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] Using K2 rant input
W3FPR - Don Wilhelm wrote: I don't have the full answer, but can offer this 'food for thought' -- The Rant input (when active) is connected to the output of the K2 T/R switch when in use, and when the Rant is not being used that point is subjected to the full output of the base K2 output collector RF voltage - so I would conclude that it should handle up to 15 watts of RF induced onto the Rant input jack, but OTOH, I have not tested it. I was just looking at the circuit and I think you're right. Let's see, 15 watts in 50 ohms comes out to about 27 volts. I can put a 47 ohm resistor across the antenna without significant signal loss, so the impedance cannot rise above that level under any circumstances. The t/r switch diodes will be cut off so there won't be harmonic generation from this source. Now I just need to measure the RF voltage with my scope and make sure that this level isn't exceeded (with plenty of safety factor!) -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco ___ 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] Noise Blanker Wish List.
Geoff That's the way the NB in my old Kenwood TS180 worked. It has an 8 MHz 1st IF, and the NB pickoff is before the 8 MHz crystal filter, as I recall. The NB is tunable with a front panel control to allow you to move away from an interfering signal. 73, Bob N6WG -- Original message -- > Greetings Folks, > > An "Evasive" noise blanker is on my wish list. This is the system where the > noise blanker receives noise from "out of band" and none of its circuits > (except for its input "tap off" and the IF Gate) are in the main signal > path. Best done when you can tune the noise blanker receiver a little to > avoid strong out of band signals (ie evasive). The result is that your > crosstown "friend" at S9++ and 1 kc up does not "key" the noise blanker. The > idea has been around for a long time, Collins used it but they picked up > noise at low VHF. Bit more complex but it really pays off I've found. > > 73, > > Geoff. > > ___ > 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] Older K2??
Jeff You will find even the oldest K2s are solid performers. I'm still using my s/n 12 ! It is still stock, with none of the upgrades installed yet. I bought the upgrade kits, but never got around to isntalling them. Great little radio as it stands, and works very well as a contest radio too. I'd say go ahead and get the K2. I can't see how you would regret it. Good luyck and 73 Bob N6WG -- Original message -- > Hello all, I am considering the purchase of an older K2 with a 1400's > serial number. It has the following options in it. SSB, 160, NB, > Audio Filter / Clock, Battery, and probably a couple I've forgotten. > \My question is, with all of the updates made to the newer K2's, is > this a good purchase? The price should be around $700 or so. Supposedly > it looks new and works perfect. Can the DSP option be added? Can the > 100W option be added? Any thoughts would be most appreciated by this > newbie. Thanks so much for the help > Jeff WB8QYT [EMAIL PROTECTED] > > ___ > 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: Re[elecraft] K2/KPA100 problem
Bryan, I suggest solving the low power output on 15/12/10 for the base K2. You should be able to achieve at least 10 watts on all bands. I don't believe that is your basic problem with the KPA100. If the the KPA100 is self-oscillating, that is the first problem to tackle. Once you get that under control, other apparent problems may also disappear. I have not had experience with oscillations in the KPA100, so the best advice I can offer is to check all components and all soldering - it is not normal for the KPA100 to self-oscillate, in fact in my experience it is quite stable. Look carefully at the input circuit components and the transformer turns. The LPF is not the most likely culprit. 73, Don W3FPR > -Original Message- > > The K2 appears to work on all bands, albeit only 6 to 8watts out > on 15/12/15m, which I presume is ok, but maginal. When I connect > up my KPA100, output is 100w plus on the lower bands, but on > 15/12/10 m it is very low, and the system is self-oscilating > around 100MHz and the frequency is unstable. > > I would think that there was a problem in the KPA's LPF for those > bands, but I can't find anything wrong. I use Toroidguys > inductors, and all seems well as far as I can check. > > Has anyone had a similar experience I wonder. Does the low > output from the K2 cause this problem > > Thanks > > 73 Bryan G3AKF > ___ > ___ 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] CW tone
Hi Ian, As far as I can tell, the rasp/buzz issue related to power supplies has to do with magnetic fields coupling into L30 on the right side bottom of the K2. This messes up the VFO frequency, so it should also mess up SSB transmit and receive both. Is it possible that you have a problem with the side tone? Hold down SPOT - if that sounds raspy the problem is with the side tone. If the side tone is clean, flip the K2 on its side. If the rasp/buzz changes a lot, its a magnetic field from somewhere. Look for a "wall wart", a fluorescent ballast, or some kind of unfiltered DC line close to the K2. Also, look at the ~7 MHz birdie tone using spectrogram. A 60 Hz magnetic field will cause the 600 Hz tone to have side bands at 60 Hz intervals due to the FM modulation of the VFO. (The structure might be a little funny looking because of 60 Hz harmonics on the magnetic field.) 73 and Good Luck, Masleid, AB9GV -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Ian J Maude Sent: Friday, February 11, 2005 8:23 AM To: elecraft Subject: [Elecraft] CW tone Hi all, I have seen this so many times but have been bitten by it. I have just started to get back on the key and my tone is awful. Raspy and buzzy. The tone on Tune is fine. SSB is great. I have moved the PSU well away (Revex 30A, Regular PSU) and even tried using one even further away, easily 5 feet and about 3 feet above it (Farnell Switch Mode). I have the same problem with both. I have removed the PA and tried but still the same. Ideas would be appreciated. Many thanks Ian -- Ian Maude G0VGS Morecambe Lancs UK | [EMAIL PROTECTED] Sysop of GB7MBC, the Morecambe Bay Cluster Running Linux and DXSpider | K2 #4044 ___ 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
[Elecraft] Re: CW Tone problem
Hi all, Just thought I would pop the resolution for my problem on here. Thanks to all that responded. Lou, W6UR was the first to spot it and Gary Surrency shortly after. I had installed RFC15 incorrectly which basically made it open circuit. In trying to move it, I broke it of course! Gary suggested I replaced RFC15 with a jumper until I get the new one from parts. I have done this and all is now well. Cheers Ian -- Ian Maude G0VGS Morecambe Lancs UK | [EMAIL PROTECTED] Sysop of GB7MBC, the Morecambe Bay Cluster Running Linux and DXSpider | K2 #4044 ___ 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] Found it!
In spite of the funny happening (my sneeze), I found the "lock-up" problem - I inadvertantly shorted the dit line on my bencher paddle, which locks the K2 in tx. Moral - don't sneeze! 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] Older K2??
1400 an older serial #? Young whipper snapper! Hello all, I am considering the purchase of an older K2 with a 1400's serial number. -- 73, Mike Boice, KW1ND K2 # 185 (in the middle of "A to B" mods) Karns, TN Behold the power of the penguin Reclaim Your Inbox! http://www.mozilla.org/products/thunderbird/ ___ 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] KX1 headphones
Any recommendations for headphones for the KX1? I'm currently using a set from a Sony Discman, and even with the AF gain up all the way, it really isn't loud enough for me (left a lot of my hearing on the other side of the world). Lighter would also be nice for the Spartan Sprint. 73, Fred K6DGW Auburn CA CM98lw ___ 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] KX1 headphones
Fred, I like The Plug by Koss. 73/Gil NN4CW K2 #3104; KX1 #53; First Born of Jack and Tillie Stacy, etc. ___ 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] KX1 headphones
Elecraft recommends the Sony MDR series. Get out your glasses and look for "Sensitivity: 108dB/mW". There are two Sony products that say this and the cheaper ones are fine. Both have a nice case good for portable use. Do a google search for KX1 MDR. WA5ZNU / Leigh. On Fri, 11 Feb 2005 12:56 pm, Fred Jensen wrote: Any recommendations for headphones for the KX1? ___ 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] KX1 headphones
Koss the "PLUG". Lots of volume and nice tone. Fred Jensen wrote: > Any recommendations for headphones for the KX1? I'm currently using a > set from a Sony Discman, and even with the AF gain up all the way, it > really isn't loud enough for me (left a lot of my hearing on the other > side of the world). Lighter would also be nice for the Spartan Sprint. > > 73, > > Fred K6DGW > Auburn CA CM98lw > > ___ > 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
[Elecraft] Lock washers.
Hi all. I have a silly question. At one point in the manual for the KPA100 it says to install 2 lockwashers under each screw for Q1 and Q2 while soldering them and another place it says just 1 lockwasher during final assembly. How many lockwashers go under each screw for Q1 and Q2 for final assembly? Thanks. -- R. Kevin Stover ACØH Reclaim Your Inbox! http://www.mozilla.org/products/thunderbird ___ 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] K2 4718 Complete!
I finished K2 4718 last night (heard a Russian station calling CQ on 40 meters!). I am only a lowly no-code tech right now and have had my license for only a few months. I bought this radio because it seemed to me to be what ham radio should be all about. I am working on upgrading my license (i.e. learning the code) and cannot wait to get this radio on the air. In the mean time, I may continue to add options... Maybe a 6 meter transverter... I can see that this radio could be a work in progress for a long time! This was the first radio I ever built and the most complicated electronics project by far. I finished it in a couple weeks. When I would work on it, I just couldn't put it down. I had no major problems other than when I was short one switch and continued with the build before I got it. You might remember this caused 'not inst' to flash when 'menu' was pressed. For anyone with a penchant for building things, all I can say is this is the kit for you. It really helps to take the advice on the website regarding tools as well. My Weller station, Excelite cutters and Soldapullt were money well spent for this project. Thank you Elecraft for helping keep ham radio alive and fun! 73, Chris KC9GSV ___ 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] KX1 headfones
Thanks for all the replies, on and off the net, I decided to try the RS overbrand of the Koss "Plug" since they were only $20 and RS is close, before heading for an online purchase. Really bi difference! Only one of the several types of cushions supplied with it didn't really fit, so I have some spares. Strong signals are now actually a little too loud with the AF gain full on (very little is 'too loud' for me so this is a really good deal). The K2 and KX1 just continue to be more and more fun. CU all in the NA Sprint tomorrow night. There's an NCCC sponsored practice tonight (Fri 2/11) ... 1830 - 1900 PST (2/12 0230Z - 0300Z) if you're interested. All the recommended frequencies and all are welcome. Be careful of the RTTY, WPX is going on too. Fred K6DGW Auburn CA CM98lw ___ 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] K2 4718 Complete!
Great news Chris! See the SolidCopy web site, http://groups.yahoo.com/group/SolidCpyCW/ and join their email list. Lots of useful advice on passing the code test. The Koch program they push is the best that I've seen for learning the code. Also, my K2 #402 is working gangbusters for the QRP Foxhunts. It’s a nice feeling knowing that you have the best equipment available. Regards, Steve, Pituch -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.300 / Virus Database: 265.8.7 - Release Date: 2/10/2005 ___ 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] K2 S/n 01432..Frequecy Counter Probe...Question..?
Guy's..! ..(Don..! Hope You See This..) After yesterdays, "very successful"...first "smoke test" ...goin' MORE than accordin' to plan... I am overwhelmed to say, that "K2 S/n 01432.. Passed her first "smoke test" with flying colours...MORE than I ever expected..!" "..She Lives..! " However... after the inital shock of findin' she turned on successfully, went through all the proceedures, with the EEprom etc...I have carried on through the manual endeavouring to aspire to more success... I am currently milling around on Page 44 of the manual, where they ask you to assemble a "Frequency Counter Probe" to allow for more testing... Great..! More "test gadgests" for the shack..! I am however stuck on this one..due to the fact that I am short (I think) on another "2 pin housing" piece to allow this to be constructed Can anyone advise me on what I should/could do at this point...I dont want to have to take the other "probe" that I just built to pieces to use the "2 pin housing" that I put that together with... IS THERE..! anyway, as before, in the making of the previous probe...where this time I "may also" use just my normal "Multi-Meter" from page 44 onwards, to do these tests(not sure...! sounds a dumb question I know...but I've never experieced this kinda thing before...ever..) "If" I could find a way around having one of these "Frequency Counter Probe"(s)...either home-brew or otherwise...I could move on with construction...just dont want to do the wrong thing hereas y'all understand... I ALSO have a spare "Multi-Meter Probe" from an other meter if that would be of any use, where I could "cannabalis" (DOH..! spelling..!), something out of that possiblyit may be no use doin' that however...not sure..?? Answers will need to explain clearly, what I "could" do from here please...adopt the "KISS" method on this one..! Thanks Again..Ever So Much for this guy's"K2 S/n 01432 WILL Soon Be On-Air" Andy [EMAIL PROTECTED] "...I Just See It.!.." John A. Ross (RSD Communications circa 2004) A.R.S. GM0NWI QRP "..It is vain to do with more "A Dis-Orientated Kiwi... "K2 S/n 01432 Soon To Be On-Air"what can be done with less.. In The Northern Hemisphere..." GQRP No.9576 QRP-L No.2165 ARCI No.10561 Alaska QRP Club No.190 Flying Pigs QRP Club No. FP#-1061 ICQ No.31899603 ___ 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] KX1 headfones
Fred, You might want to bookmark this site which describes how to make DIY replacement foam earplugs for The Plug. http://www.cogev.com/trips/headphones.htm I believe there's another site out there with more mods for The Plug. Gil/NN4CW ___ 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] Lock washers.
The reason for the two lockwashers while soldering the output transistors is to keep the screws from bottoming out in the heat sink because the heat transfer devices between the transistors and the heat sink are not installed yet. One lockwasher is correct on final install. 73 Jm Younce K4ZM K2 SN: 18 ___ 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
