[Elecraft] [P3] Listening in the AM Band
Here's one I bet you guys haven't run into yet. I was tuned to a local AM station on 710 kHz which was showing up as a -75 dBm carrier on the P3. Every 8 seconds a relay would quickly cycle off and on (or on and off, I don't know which) inside the P3 which would reduce the displayed amplitude of the signal by a few dB while it was in the transient position. This was perfectly repeatable. However, inserting a 10 dB pad in the antenna path to reduce the signal amplitude to below about -80 dBm stopped the relay from cycling. Is this some kind of protection circuit? Al W6LX __ 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 - small power supply 110-240VAC
> I run my K3 from an Astron 20A with no problems at all. The 20A > is rated at 20A Intermittent Commercial and Amateur Service (ICAS) > and 16A continuous commercial service (CCS). Ah, but there is a significant difference in the rating between a linear supply (your Astron RS-20) and a switching supply like the MFJ-4125 or similar. The Astron is rated for average current and duty cycle ... it can almost certainly provide more than 20A on short peaks ... the 20A rating is based on heating of the transformer and regulator transistors. A switching supply is generally rated for CCS with peak current rating based on the energy storage in the capacitors (how much current can be drawn before the output drops too low) and the average current based on the capacity of the switching circuit to keep the capacitor charged (current rating of the inductor, transformer, and switching devices). A prime example of the peak/average issue is the Gamma supply. It does not even tolerate full power CW well at slow speeds and falls apart completely at 100 W (even 50 W) RTTY because of the "continuous" current limitations. The K3 is quite happy with a 25A peak / 20-22A continuous switching supply. Since a linear supply generally has sufficient energy storage in the filter cap because of the need to work with a much lower ripple voltage than a switcher, a "20A" linear supply can usually supply the same brief 25A peaks (dynamic load) within the heating limits of 20A (average) ICAS service depending on the design of the regulator (current limiting). 73, ... Joe, W4TV On 8/17/2010 11:52 PM, Ron D'Eau Claire wrote: > It's okay to apply a little reason when evaluating the specifications. That > 25A rating is VERY conservative, as Elecraft spex always are IMX. > > I run my K3 from an Astron 20A with no problems at all. The 20A is rated at > 20A Intermittent Commercial and Amateur Service (ICAS) and 16A continuous > commercial service (CCS). > > My K3 demands far less than 20A ICAS, even running 100 watts CW/SSB. Of > course, that's because both CW and SSB are very low duty cycle modes. The > peak current (just about 20 Amps worst case for my K3 looking into a low > SWR) only occurs at brief voice peaks or when the key is actually down in > CW. The average current is far below that, and far below the 16A CCS rating > of the Astron. > > If I was going to run RTTY or FM at a full 100 watts, I'd be running the > power supply about 25% above its normal ratings only if I kept transmitting > for more than 5 minutes (ICAS assumes 5 minutes on and five minutes off). > Even if I wanted to run RTTY or FM constantly for an extended time, dialing > the K3 output power back 1 or 2 dB would put the load comfortably inside the > CCS rating of the power supply. > > Ron AC7AC > > -Original Message- > >> From the manual: "Recommended supply: 13.8VDC @ 25A, continuous duty for > K3/100; > > > __ > 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 - small power supply 110-240VAC
It's okay to apply a little reason when evaluating the specifications. That 25A rating is VERY conservative, as Elecraft spex always are IMX. I run my K3 from an Astron 20A with no problems at all. The 20A is rated at 20A Intermittent Commercial and Amateur Service (ICAS) and 16A continuous commercial service (CCS). My K3 demands far less than 20A ICAS, even running 100 watts CW/SSB. Of course, that's because both CW and SSB are very low duty cycle modes. The peak current (just about 20 Amps worst case for my K3 looking into a low SWR) only occurs at brief voice peaks or when the key is actually down in CW. The average current is far below that, and far below the 16A CCS rating of the Astron. If I was going to run RTTY or FM at a full 100 watts, I'd be running the power supply about 25% above its normal ratings only if I kept transmitting for more than 5 minutes (ICAS assumes 5 minutes on and five minutes off). Even if I wanted to run RTTY or FM constantly for an extended time, dialing the K3 output power back 1 or 2 dB would put the load comfortably inside the CCS rating of the power supply. Ron AC7AC -Original Message- >From the manual: "Recommended supply: 13.8VDC @ 25A, continuous duty for K3/100; __ 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 Display
That's Funny ! USA Radio with the Latin Alphabet. Had fun building this, should have it on the air soon. Thanks for the Link. Chris W7CTH From: Iain MacDonnell - N6ML To: Chris Hembree Cc: elecraft@mailman.qth.net Sent: Tue, August 17, 2010 9:25:15 PM Subject: Re: [Elecraft] K3 Display See also http://en.wikipedia.org/wiki/Seven-segment_display_character_representations ~Iain / N6ML On Wed, Aug 18, 2010 at 3:19 AM, Iain MacDonnell - N6ML wrote: > It's as close as you can get to a 't' on a seven-segment display. Just > accept it and move on ;) > >~Iain / N6ML > > > > On Tue, Aug 17, 2010 at 8:16 PM, Chris Hembree wrote: >> Looks like upside down F's not lower case t's >> Chris >> >> >> >> From: Iain MacDonnell - N6ML >> To: Chris Hembree >> Cc: elecraft@mailman.qth.net >> Sent: Tue, August 17, 2010 9:13:55 PM >> Subject: Re: [Elecraft] K3 Display >> >> On Wed, Aug 18, 2010 at 2:31 AM, Chris Hembree wrote: >>> I am building my K3. I am at the part were I am testing the fans. in >>> CONFIG, >>> PAIO ON, PAIO TST The (TST ) the T's look like upside down F's.The S >>> looks >>> okay. >> >> They're (supposed to look like) lower-case 't's >> >> ~Iain / N6ML >> >> > __ 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 - External RX Mute
Dave, How is the signal reaching the "spotting" K3 during transmit from the "run" radio? Have you checked the signal level with the antenna completely disconnected from the run radio? If the problem is coupling through the 2S1 and primary antenna input you could build a pin diode operated attenuator (or even reed relay switched attenuator), install it in the RF IN/OUT loop of the spotting radio and control it with PTT from the run radio. 73, ... Joe, W4TV On 8/17/2010 8:37 PM, Dave Hawes wrote: > In the recent WAE CW Contest, we had two K3s on the same band, one as > the live transmitter, and the other either tuning the band or listening on the > running frequency to assist the run operator. > > While listening on the run station's frequency, even though we used an Acom > 2S1 to ground the antenna line and thus protect the RX front end, the run > station's signal was very loud in the spot radio's RX. > > Is there a way to configure the K3 for variable muting during PTT active times > on the other K3? I'm wondering if the run station's PTT line could be used to > variably mute the spot RX somehow. Full muting is not the goal, but rather a > way to keep the RX "on" but keep the S meter down to S9 or thereabouts, to > allow the RX to recover very quickly. Even with AGC-F, often the first > character of the caller's callsign would be missed due to the recovery time. > Plus it hurt my ears! > > OTs may remember that the Collins 75S3B had a "Mute" jack on the back, to > be used with the 32S3 transmitter. In those days, we could accomplish a > variable mute of the RX by putting a large resistance pot (50K maybe) across > that jack, and switch it in and out with a reed relay following keying. Can > this > be done with the K3? > > 73 - Dave N3RD > __ > 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 Display
That's a limitation of the elements available on the display. Ron AC7AC -Original Message- I am building my K3. I am at the part were I am testing the fans. in CONFIG, PAIO ON, PAIO TST The (TST ) the T's look like upside down F's.The S looks okay. Anyone see this before? Chris W7CTH __ 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 Display
Thanks Hi! Hi! Chris From: Iain MacDonnell - N6ML To: Chris Hembree Cc: elecraft@mailman.qth.net Sent: Tue, August 17, 2010 9:19:31 PM Subject: Re: [Elecraft] K3 Display It's as close as you can get to a 't' on a seven-segment display. Just accept it and move on ;) ~Iain / N6ML On Tue, Aug 17, 2010 at 8:16 PM, Chris Hembree wrote: > Looks like upside down F's not lower case t's > Chris > > > > From: Iain MacDonnell - N6ML > To: Chris Hembree > Cc: elecraft@mailman.qth.net > Sent: Tue, August 17, 2010 9:13:55 PM > Subject: Re: [Elecraft] K3 Display > > On Wed, Aug 18, 2010 at 2:31 AM, Chris Hembree wrote: >> I am building my K3. I am at the part were I am testing the fans. in >> CONFIG, >> PAIO ON, PAIO TST The (TST ) the T's look like upside down F's.The S >> looks >> okay. > > They're (supposed to look like) lower-case 't's > > ~Iain / N6ML > > __ 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 Display
See also http://en.wikipedia.org/wiki/Seven-segment_display_character_representations ~Iain / N6ML On Wed, Aug 18, 2010 at 3:19 AM, Iain MacDonnell - N6ML wrote: > It's as close as you can get to a 't' on a seven-segment display. Just > accept it and move on ;) > > ~Iain / N6ML > > > > On Tue, Aug 17, 2010 at 8:16 PM, Chris Hembree wrote: >> Looks like upside down F's not lower case t's >> Chris >> >> >> >> From: Iain MacDonnell - N6ML >> To: Chris Hembree >> Cc: elecraft@mailman.qth.net >> Sent: Tue, August 17, 2010 9:13:55 PM >> Subject: Re: [Elecraft] K3 Display >> >> On Wed, Aug 18, 2010 at 2:31 AM, Chris Hembree wrote: >>> I am building my K3. I am at the part were I am testing the fans. in >>> CONFIG, >>> PAIO ON, PAIO TST The (TST ) the T's look like upside down F's.The S >>> looks >>> okay. >> >> They're (supposed to look like) lower-case 't's >> >> ~Iain / N6ML >> >> > __ 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 Display
It's as close as you can get to a 't' on a seven-segment display. Just accept it and move on ;) ~Iain / N6ML On Tue, Aug 17, 2010 at 8:16 PM, Chris Hembree wrote: > Looks like upside down F's not lower case t's > Chris > > > > From: Iain MacDonnell - N6ML > To: Chris Hembree > Cc: elecraft@mailman.qth.net > Sent: Tue, August 17, 2010 9:13:55 PM > Subject: Re: [Elecraft] K3 Display > > On Wed, Aug 18, 2010 at 2:31 AM, Chris Hembree wrote: >> I am building my K3. I am at the part were I am testing the fans. in >> CONFIG, >> PAIO ON, PAIO TST The (TST ) the T's look like upside down F's.The S >> looks >> okay. > > They're (supposed to look like) lower-case 't's > > ~Iain / N6ML > > __ 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 Display
Looks like upside down F's not lower case t's Chris From: Iain MacDonnell - N6ML To: Chris Hembree Cc: elecraft@mailman.qth.net Sent: Tue, August 17, 2010 9:13:55 PM Subject: Re: [Elecraft] K3 Display On Wed, Aug 18, 2010 at 2:31 AM, Chris Hembree wrote: > I am building my K3. I am at the part were I am testing the fans. in CONFIG, > PAIO ON, PAIO TST The (TST ) the T's look like upside down F's.The S looks > okay. They're (supposed to look like) lower-case 't's ~Iain / N6ML __ 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 Display
On Wed, Aug 18, 2010 at 2:31 AM, Chris Hembree wrote: > I am building my K3. I am at the part were I am testing the fans. in CONFIG, > PAIO ON, PAIO TST The (TST ) the T's look like upside down F's.The S looks > okay. They're (supposed to look like) lower-case 't's ~Iain / N6ML __ 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 Display
I am building my K3. I am at the part were I am testing the fans. in CONFIG, PAIO ON, PAIO TST The (TST ) the T's look like upside down F's.The S looks okay. Anyone see this before? Chris W7CTH __ 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 - small power supply 110-240VAC
I picked up one of the PowerWerx supplies at Dayton this spring and used it for Field Day. It powered my K3 for 24 hours of continuous use with no problems. Have not found any spurs yet. It is amazingly small and portable but the fan noise is noticeable. I don't find it objectionably loud, but it's not silent. Will, AI4VE __ 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] P3 display sensitivity Was: P3 Question
> Here's a simple (hopefully) question ... The answer is a little complicated. :=) First, the 10 dB noise figure is for the P3 itself. The total noise on the display includes the contribution from the K3. Assuming you have done the IF Out mod on the K3, the noise figure of the K3/P3 combination should be within a dB or so of the NF of the K3 alone. The effective bandwidth of the P3 is more-or-less one display pixel, with a lower limit of a little over 7 Hz at the narrowest spans. There are 468 pixels, so for spans greater than 3.5 kHz, the bandwidth is approximately span/468. The sensitivity of the K3 depends on the state of its preamplifier and attenuator. With preamp on, the K3 data sheet says the sensitivity is -136 to -138 dBm typical in a 500 Hz bandwidth. So, assuming the total noise of the K3/P3 combination is -136 dBm in a 500 Hz bandwidth, with the K3 antenna connector terminated in a 50-ohm dummy load, the noise level on the P3 display should be: -136 - 10 * log [500 / (span/468)] With a 50 kHz span, that works out to about -143 dBm. And of course higher than that with the K3 preamp off. And of course much higher than that with an antenna connected to the K3. There are a number of factors, both theoretical and practical, that can throw that number off a bit, but it should be in the ballpark. Alan N1AL On Tue, 2010-08-17 at 17:16 -0600, Craig D. Smith wrote: > Here's a simple (hopefully) question that I'm sure one or more of you RF > gurus can easily handle. But I'm having difficulty with it, at least today. > > I was wondering what baseline level I should be seeing on my P3 with the > input terminated in 50 ohms (no signal in). This isn't given in the > specifications. But the noise figure is given (less than 10 dB) so I > figured it would be easy to calculate with the usual sensitivity formula as > a function of noise figure. Of course you need Boltzman's constant (no > problem), temperature (no problem), and desired S/N ratio (assume 5 dB). > But what should I use for bandwidth, since with the P3 there isn't a normal > bandwidth filter in the circuit such as with the K3. Do I use the full 200 > KHz maximum span? Something else? > > My P3 shows about -132 dBm with its input terminated. And about -130 dBm > when connected to the K3 with the K3 antenna inputs terminated. Is this in > the expected range? > > 73 Craig AC0DS > > > > __ > 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] NG0R - K2+K60XV+XV144/222/432 - Setup Issue
You are correct... I figured that out when I fixed them 5 minutes ago. :-) I just got it back together and the transverters are lighting up. More details to follow once I can do some testing. More details to follow. 73 -- John Hoaglun NG0R - EN25 http://www.hoaglun.com On Tue, 2010-08-17 at 21:59 -0400, Don Wilhelm wrote: > John, > > I suspect that you have the backshells assembled incorrectly. There is > a groove about 1/16 inch in from the edge where the metal of the > connector body should be positioned. There should be no need to cut the > plastic. Study the diagram in th emanual carefully. > > 73, > Don W3FPR __ 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] NG0R - K2+K60XV+XV144/222/432 - Setup Issue
John, I suspect that you have the backshells assembled incorrectly. There is a groove about 1/16 inch in from the edge where the metal of the connector body should be positioned. There should be no need to cut the plastic. Study the diagram in th emanual carefully. 73, Don W3FPR John Hoaglun wrote: > Hi Don, Peter, and the rest of the list. > > I think that I might have found the problem. My IO port appears to the > check out fine. When I connect the cable I was getting NOTHING on all > of the pins on all of the connectors. I removed the plastic D shell for > the connector at the radio and then rechecked the remote end of the > snake and I then had power on the pins as expected. > > It turns out that the plastic D shell is not letting the pins get > inserted/engaged far enough into the connector to make contact. I will > either need to trim down the plastic or replace the D shell. > > Once I resolve this little item I can reconnect stuff and retest. > Hopefully that is my only problem in the tune up but anything is > possible as I am just getting started. > > It will likely be a day or two before I can get enough bench time to > make the mods and restart the testing. > > 73 > __ 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] NG0R - K2+K60XV+XV144/222/432 - Setup Issue
Hi Don, Peter, and the rest of the list. I think that I might have found the problem. My IO port appears to the check out fine. When I connect the cable I was getting NOTHING on all of the pins on all of the connectors. I removed the plastic D shell for the connector at the radio and then rechecked the remote end of the snake and I then had power on the pins as expected. It turns out that the plastic D shell is not letting the pins get inserted/engaged far enough into the connector to make contact. I will either need to trim down the plastic or replace the D shell. Once I resolve this little item I can reconnect stuff and retest. Hopefully that is my only problem in the tune up but anything is possible as I am just getting started. It will likely be a day or two before I can get enough bench time to make the mods and restart the testing. 73 -- John Hoaglun NG0R - EN25 http://www.hoaglun.com On Sun, 2010-08-15 at 14:15 -0400, Don Wilhelm wrote: > John, > > Since you seem to be certain of the cable -- > Check the voltage at KIO2 or KPA100 AUX I/O pin 8 - it should be 12 > volts. If it is not (and you have the KIO2), check to see if the > RFChoke L1 on the KIO2 board is open. > > When plugged into a powered on K2, all connectors on the cable should > have 12 volts on pin 8. > > 73, > Don W3FPR > > John Hoaglun wrote: > > Hi Peter & the list, > > > > That was my initial first guess too. I looked at the numbers in the > > molded plastic (since it is accurate on both sides) and then tested them > > with a DVM to make sure that they matched at all four ends (K2, 144, > > 222, 432) and they do. I need to go run a couple of errands this > > afternoon. Just for grins I will stop at RShack and see if they have a > > couple of DP9's on the shelf. If so I will likely make up a quick cable > > that I can use for direct K2 to one transverter for bench testing. (I am > > crossing my fingers that it is something simple like that.) > > > > FYI... I just went back to the work bench, swapped the JP7 & JP8 jumpers > > and then disabled the DIP that controls the resistor network for the TRN > > address, power cycled them and all three transverters respond as > > expected. Of course I would prefer to use them with the K2 for auto > > switching so I will need to figure this out. > > > > Please keep sending me your ideas. I will see if I can get the parts to > > make a test cable this afternoon. (50 miles round trip for 2 DB9... > > becomes an expensive part.) > > > > 73 > > __ 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 - External RX Mute
In the recent WAE CW Contest, we had two K3s on the same band, one as the live transmitter, and the other either tuning the band or listening on the running frequency to assist the run operator. While listening on the run station's frequency, even though we used an Acom 2S1 to ground the antenna line and thus protect the RX front end, the run station's signal was very loud in the spot radio's RX. Is there a way to configure the K3 for variable muting during PTT active times on the other K3? I'm wondering if the run station's PTT line could be used to variably mute the spot RX somehow. Full muting is not the goal, but rather a way to keep the RX "on" but keep the S meter down to S9 or thereabouts, to allow the RX to recover very quickly. Even with AGC-F, often the first character of the caller's callsign would be missed due to the recovery time. Plus it hurt my ears! OTs may remember that the Collins 75S3B had a "Mute" jack on the back, to be used with the 32S3 transmitter. In those days, we could accomplish a variable mute of the RX by putting a large resistance pot (50K maybe) across that jack, and switch it in and out with a reed relay following keying. Can this be done with the K3? 73 - Dave N3RD __ 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 - small power supply 110-240VAC
Jorge, I bought an MFJ-4125 Mighty Lite for a trip to J79 about 6 years ago, and used it on several other portable operations to run an IC706 and a second one for RX only. It puts out 22A continuous, 25 amp peak in a small size off either 120/240v. And I see the price is now somewhat less than when I bought it. http://www.mfjenterprises.com/Product.php?productid=MFJ-4125 I started using this as my main supply for the K3 almost a year ago and it has worked great. 73/Jon AA1K On 8/17/2010 15:37 PM, Jorge Diez - CX6VM wrote: > Hello, > > > > Do you know about a good power supply for the K3, to be used in any country > and lightweight? > > > > Thanks, > > Jorge > > CX6VM/CW5W > > __ > 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] K2 Initial Power up
Nate, It sounds like the only thing you have to check is the temperature on your soldering station. Bump it up to 750 deg/F if you can. Make certain you give the solder pads enough heat - you should see the solder flow out to an almost invisible edge on the pad in 2 to 3 seconds for normal pads and lead sizes - the large diode leads and ground pads take a bit longer because they wick heat away from the junction. 73, Don W3FPR KA1YMX wrote: > I bellowed all of the solder joints and it works now. I did get info 80 error > code when I switched the band to 80m. I turned the power off and the code > went away. I cannot get the error code to repeat. I followed the > troubleshooting procedures in the book and everything looks good. Do you > think i should check anything else? > > Nate > > __ 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] K2 Initial Power up
I bellowed all of the solder joints and it works now. I did get info 80 error code when I switched the band to 80m. I turned the power off and the code went away. I cannot get the error code to repeat. I followed the troubleshooting procedures in the book and everything looks good. Do you think i should check anything else? Nate - Reply message - From: "Don Wilhelm-4 [via Elecraft]" Date: Tue, Aug 17, 2010 11:21 am Subject: K2 Initial Power up To: "KA1YMX" Nate, I cannot say whether that would help or not - while it is possible that it would work, if it does not work with the external oscillator, then you have not discovered much of anything. There are several possibilities. First is that you just may not be hearing the 4 MHz oscillator. Even if the 4 MHz oscillator does not start, you will still see the K2 try to power on - yes, it will not be successful, but at least you should detect a "blink". Substitution is the quickest way to localize a problem. Do you have any other K2 owners around? If so, perhaps they would let you temporarily swap their Control Board for theirs. If it works, you know that the problem is on your Control Board. Next step would be to put their firmware chip on your Control Board. If yours works, then you will know that the firmware chip has been damaged. Use good anti-static measures when changing out a firmware chip, they can be damaged by mishandling. I would rather see you checking the components in you 4 MHz crystal area, C21, C22 and X2 for proper values and good soldering. While anything can be faulty, the chance that the crystal is bad is small. 73, Don W3FPR dogbulter wrote: > Since I cannot detect the 4mhz oscillator at the MCU (U6), I was wondering if > I could use an external clock to make sure everything else is working. I > would use a Pongrance Digital VFO to inject a 4mhz signal into pin 14 (OSC1) > and remove C21, C22, and X2. If this works I could at least determine > something is wrong with the oscillator section. > > Please let me know what you think. > > Nate > __ 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 __ View message @ http://elecraft.365791.n2.nabble.com/K2-Initial-Power-up-tp5430109p5432415.html To unsubscribe from Re: K2 Initial Power up, click http://elecraft.365791.n2.nabble.com/template/NodeServlet.jtp?tpl=unsubscribe_by_code&node=5432099&code=bmF0ZXNtYWxsQGhvdG1haWwuY29tfDU0MzIwOTl8LTgxODgyNTQ3MA== -- View this message in context: http://elecraft.365791.n2.nabble.com/K2-Initial-Power-up-tp5430109p5434473.html Sent from the [K2] 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
Re: [Elecraft] K3 - small power supply 110-240VAC
Jorge, Yes, we use several of the same supplies for the full 48 hours with no problems and no RFI. You must remove an internal jumper wire for 220V operation. You can see the eham reviews at http://www.eham.net/reviews/detail/ . I did look at the PowerWerx supply - it is smaller and rated at 25A and the USA price is within $10. It is apparently brand new - it doesn't have a eham review page and it is not in stock. So there won't be any reliability or RFI data for a while. 73, Bud N7CW -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Jorge Diez - CX6VM Sent: Tuesday, August 17, 2010 3:40 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 - small power supply 110-240VAC Thanks Bud, >From the manual: "Recommended supply: 13.8VDC @ 25A, continuous duty for K3/100; Do you use it full 48 hours without problem during contests? This is a 23A PS... Anyway they have another model for 30A. If the brand is good will consider it. Here I only find China PS´s!.. and I wantot avoid them 73, Jorge CX6VM/CW5W -Mensaje original- De: Bud Semon N7CW [mailto:n...@cableone.net] Enviado el: Martes, 17 de Agosto de 2010 05:11 p.m. Para: 'Jorge Diez - CX6VM'; elecraft@mailman.qth.net Asunto: RE: [Elecraft] K3 - small power supply 110-240VAC Jorge, I like the Samlex 1223. It operates on 110 or 220, 50 or 60Hz and is very quiet. We used them at 9L5A last year for CQWW CW and I have used one at home for years. 73, Bud N7CW -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Jorge Diez - CX6VM Sent: Tuesday, August 17, 2010 12:37 PM To: elecraft@mailman.qth.net Subject: [Elecraft] K3 - small power supply 110-240VAC Hello, Do you know about a good power supply for the K3, to be used in any country and lightweight? Thanks, Jorge CX6VM/CW5W __ 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] Discoveries
On Tue, 17 Aug 2010 11:51:59 -0700 (PDT), ab2tc wrote: >I am painfully aware of that. Clip-ons in this case was the only practical >thing to try. Clip-ons come in more than one size. Larger ones allow multiple turns. 73, Jim K9YC __ 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] P3 Question
Here's a simple (hopefully) question that I'm sure one or more of you RF gurus can easily handle. But I'm having difficulty with it, at least today. I was wondering what baseline level I should be seeing on my P3 with the input terminated in 50 ohms (no signal in). This isn't given in the specifications. But the noise figure is given (less than 10 dB) so I figured it would be easy to calculate with the usual sensitivity formula as a function of noise figure. Of course you need Boltzman's constant (no problem), temperature (no problem), and desired S/N ratio (assume 5 dB). But what should I use for bandwidth, since with the P3 there isn't a normal bandwidth filter in the circuit such as with the K3. Do I use the full 200 KHz maximum span? Something else? My P3 shows about -132 dBm with its input terminated. And about -130 dBm when connected to the K3 with the K3 antenna inputs terminated. Is this in the expected range? 73 Craig AC0DS __ 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] 100 watt option and 2 meter option.
Not really. Just do the 100 watt option FIRST, check it out and then add the K144XV 2-meter option. While installing the 100 watt option you can mount the 2-meter antenna connector on the fan panel. Just be sure to tape up and protect the other end of the coax attached to the connector so it doesn't short anything out until the 2-meter module is installed. With that done, you won't need to touch the KPA100 option installation to install the K144XV option. If you don't install the 2-meter antenna connector, it only takes a couple of minutes to do later with the rest of the 2 meter module. Ron AC7AC -Original Message- I have a K3 that I have used for over a year and a half and I love it. About 11months ago , I bought the 100 watt option - but never installed it and now I have the 2 meter option and plan to do both at once. Is there anything I need to look out for. Thanks. Pat N4LTA __ 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 - small power supply 110-240VAC
Unfortunately the fan noise in the current MFJ-4125P is much worse than the older units. The sheet metal has been changed causing significant restriction in the air flow and the fan is now operated from the full 13+ volt output presumably to recover efficiency. The changes make it noisier than any supply I've seen in a very long time and not even suitable for tucking under the operating table. 73, ... Joe, W4TV On 8/17/2010 6:31 PM, Phil & Debbie Salas wrote: > For portable use, I like the MFJ-4125. For my main station, I like the > Samlex 1235. > > Phil - AD5X > __ > 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] Boxboro Hamfest Help
Eric will be showing at the Boxboro Hamfest the 28th and 29th of August. We have had a few volunteers to help out at the booth, but he could really use a few more if anyone is available. A few hours either day would really help. If you are interested, please email l...@elecraft.com and we will get you set up. Thank you! -- Lisa Jones Elecraft, Inc. (831) 763-4211 __ 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 - small power supply 110-240VAC
Thanks Bud, >From the manual: "Recommended supply: 13.8VDC @ 25A, continuous duty for K3/100; Do you use it full 48 hours without problem during contests? This is a 23A PS... Anyway they have another model for 30A. If the brand is good will consider it. Here I only find China PS´s!.. and I wantot avoid them 73, Jorge CX6VM/CW5W -Mensaje original- De: Bud Semon N7CW [mailto:n...@cableone.net] Enviado el: Martes, 17 de Agosto de 2010 05:11 p.m. Para: 'Jorge Diez - CX6VM'; elecraft@mailman.qth.net Asunto: RE: [Elecraft] K3 - small power supply 110-240VAC Jorge, I like the Samlex 1223. It operates on 110 or 220, 50 or 60Hz and is very quiet. We used them at 9L5A last year for CQWW CW and I have used one at home for years. 73, Bud N7CW -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Jorge Diez - CX6VM Sent: Tuesday, August 17, 2010 12:37 PM To: elecraft@mailman.qth.net Subject: [Elecraft] K3 - small power supply 110-240VAC Hello, Do you know about a good power supply for the K3, to be used in any country and lightweight? Thanks, Jorge CX6VM/CW5W __ 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 - small power supply 110-240VAC
For portable use, I like the MFJ-4125. For my main station, I like the Samlex 1235. Phil - AD5X __ 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] Estate of KI4NGL
I have done some work for Roger Sturtevant KI4NGL who became a SK about a month ago. His widow has asked me for help in disposing of the ham radio part of his estate. Roger was an avid QRP builder, and perhaps some of you on this list would be interested in some of the items available. I believe a fair price is somewhere between 70% and 100% of the cost of the kits - most are assembled kits. I do not have instant access to the stock of kits at this time (I will have in a couple weeks), so I cannot answer detailed questions. I assume most of the equipment works, but I have not yet tested it. I do not know the status of the Heathkits listed at the bottom. Roger was into restoring Heath gear, so some of the transceivers may be OK, but others in the restoration process or available for parts. Roger kept documentation on everything he did, so the manuals are available for most everything. Wilderness Sierra (I don't know how many band boards are available BitX20A 20 meter SSB Transceiver BuddyPole Antenna K1EL K40 Keyer with case. The board is not mounted in the case. K1EL K42 Keyboard Keyer (complete in case) MFJ-259B antenna analyzer OHR WM-2 QRP Wattmeter Heathkit HW-8 Heathkit power supply HWA 7-1 40 meter Rockmite in a nice enclosure Genesis Radio (SDR transceiver) G3020 - still in kit form Genesis Radio G40 transceiver - mostly assembled EMU-202 USB Soundcard QRP top cover for Elecraft K2 with KIO2 option (K2/100 was sold) SW??+ kit unassembled (I have not yet been able to identify the band) Elecraft W1 Power Meter in plastic cover Black Widow Paddle Set MFJ J-260 Dummy Load 300 watt Tools and other accessories: Hakko 936 Soldering Station Hakko 808 De-Soldering gun with stand Solomon SR976 Soldering Station RigRunner 4010S Power distribution CO-201 2 position Antenna Switch Northern Drill Press Item # 155300 6" Bench Grinder Delta GR-150 1 HP 4 Gal DeVibiss Air Compressor (Pancake style) Goldstar 7241 DMM Alinco DM340MV DC Power Supply (35 Amp) MFJ Switching Power Supply MFJ 4225MV Heath Frequency Meter IM2420 Heathkit VTVM IM-10 Heath RLC Bridge IB5281 Heath RF Oscillator IG5280 B&K Precision 35 MHz Oscilloscope Tube Tester - Accurate Instruments Model 257 (with Manual) Heathkit Equipment not listed above; SB-600 Speaker HS-24 Speaker HG-10 VFO (plus another in parts) HP-23D aftermarket board for HP-23 power supply (there is the power supply somewhere) HW-16 plus an HW-16 chassis and case for restoration (chassis is clean) 2 - Single-Bander SSB Transceivers - one for 80 meters, 1 for 20 meters. 2 - SB-101 Transceivers Plastic organizer boxes for holding Heathkit restoration parts. Other: There is a box labeled "Softrocks" that I have not yet detailed Another box labeled "SDR" that I did not open. Plus several other boxes with unassembled partially assembled kits. There are also several drawer assemblies with miscellaneous parts - transistors, resistors, capacitors, PowerPoles, etc. Please let me know if you are interested in any of these items, and I will have more detail in about 2 weeks. 73, Don W3FPR __ 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 - small power supply 110-240VAC
I suggested this PS to the 9L5A gang last year and was informed that it worked fine for casual operation, but did not keep the voltage up during sustained contest operation. I'm only the messenger on this one - I have no direct experience with it. And the VooDoo Contest Group operations are a pretty severe environment, so our experience may not apply... 73, Bud N7CW -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Sverre Holm (LA3ZA) Sent: Tuesday, August 17, 2010 2:22 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 - small power supply 110-240VAC Nothing beats the Gamma Research Power supply when it comes to small size: 1.25 lbs - 0.57 kg. I use it with my K2 for travelling. It takes 100-250 VAC, 50-60 Hz http://www.gammaresearch.net/hps-1a.html - Sverre, LA3ZA K2 #2198, K3 #3391 http://www.qslnet.de/member/la3za/K2/mod.html LA3ZA Unofficial Guide to K2 modifications -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-small-power-supply-110-240VAC-tp5433 673p5434089.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] K3 - small power supply 110-240VAC
Check out the new power supply from Powerwerx with power poles and *Input Range: 100-120 VAC or 200-240 VAC, 50/60Hz (Switchable) New!* Output Voltage: 13.85 VDC fixed Output Amperage: 25 continuous, 30 surge http://www.powerwerx.com/batteries-chargers/powerwerx-30-amp-desktop-switching-power-supply-powerpoles.html#desc On Tue, Aug 17, 2010 at 5:21 PM, Sverre Holm (LA3ZA) wrote: > > Nothing beats the Gamma Research Power supply when it comes to small size: > 1.25 lbs - 0.57 kg. I use it with my K2 for travelling. It takes 100-250 > VAC, 50-60 Hz > > http://www.gammaresearch.net/hps-1a.html > > > > - > Sverre, LA3ZA > > K2 #2198, K3 #3391 > http://www.qslnet.de/member/la3za/K2/mod.html LA3ZA Unofficial Guide to K2 > modifications > -- > View this message in context: > http://elecraft.365791.n2.nabble.com/K3-small-power-supply-110-240VAC-tp5433673p5434089.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] K3 - small power supply 110-240VAC
Nothing beats the Gamma Research Power supply when it comes to small size: 1.25 lbs - 0.57 kg. I use it with my K2 for travelling. It takes 100-250 VAC, 50-60 Hz http://www.gammaresearch.net/hps-1a.html - Sverre, LA3ZA K2 #2198, K3 #3391 http://www.qslnet.de/member/la3za/K2/mod.html LA3ZA Unofficial Guide to K2 modifications -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-small-power-supply-110-240VAC-tp5433673p5434089.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
Re: [Elecraft] P3 cable length
3 feet. 73, Eric WA6HHQ --- On 8/17/2010 12:36 PM, Jim Spears wrote: > What is the length of the cables (RG59 and serial) supplied with the P3? > > Jim/N1NK > __ 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 Ref. in Jack?
The manual clearly states that its to be an SMA. Or at least it used to... ~Brett (N7MG) On Tue, Aug 17, 2010 at 1:11 PM, Milton wrote: > It is probably reserved for a SMA connector (God forbid that its a > mini-siemens connector). > > Milton > AD5XD > > > --- On Tue, 8/17/10, Brian Alsop wrote: > >> From: Brian Alsop >> Subject: [Elecraft] K3 Ref. in Jack? >> To: elecraft@mailman.qth.net >> Date: Tuesday, August 17, 2010, 1:17 PM >> Anybody know what kind of connector >> is supposed to go in the REF.IN. >> hole? It is apparently too small for a BNC. >> >> 73 de Brian/K3KO >> __ >> 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] K2, low output in digital modes
Raimon, If you have the RTTY FL1 filter set to OP1 and the BFO frequencies set the same as for SSB, there should be no difference. EXCEPT The RTTY filter set has an independent SSBCr setting in the menu, and it should always be set to 1-1 for data modes. If you have the SSB menu SSBC set to add compression to the signal, that would explain the difference, but if so, it is causing distortion on your data signal. Yes, you will have to increase the audio gain on the higher bands where the transmit gain is lower. Re-check the filter settings. If the FL1 filter is set to OP1 and the BFOs are set the same as for SSB, then there should be no difference if you set the SSBC menu parameter to 1-1. 73, Don W3FPR raimon wrote: > Hi Elekrafters > > I need your help. > > My K2/100 nr. 03529 with KSB2 SSB adapter and KAT 100 Antenna Tuner has > been working perfectly since I built it, with the exception of some > minor problems that were solved either with the help of Don Wilhelm or > after a search in the e-mail list reflector. > > But now I detected a problem unnoticed until now: > > I work mainly CW and digital modes. > > In 40, 30 and 20 meters, in PSK 31 or RTTY, I could get easily about 40 > watts output, corresponding to one bar flickering in ALC bargraf. So all > was apparently all right. > > But I have tried recently the 10 m. band and noticed that when selecting > my RTTY filters configuration I can get only near 20 watts in rtty, and > less than 10 watts in rtty-r. > > When I use in this band the USB or LSB configuration, and transmit RTTY > or PSK, I get about 90 watts, the same output as in CW.. > > I have seen now that this drop in output happens in all bands, but I > had’nt noticed it because I was able to get 30-50 watts in the lower > bands, even in RTTY configuration. The same output drop happens in QRP > configuration. > > Summarizing, in digital transmissions when in RTTY the output is > significantly lower than when in SSB, and the higher the frequency the > lower the output power. > > I realigned my filters with the help of Spectrogram, applying the same > settings for OP-! SSB and OP-1 RTTY (there were some small differences > before this realignment), but to no avail. > > Although I can continue working digital modes using the SSB > configurations, I would like to know the reason of this behaviour and > how to solve it. > > Your help will be greatly appreciated. > > Best regards > > Raimon > > > __ 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 subrx IF out query.
> However, I'm wondering if an alternative might be to duplicate the IF > JFET circuitry of the main RX and put it on a small perfboard inside > the SUBRX. Then feed that output to a jack just like the main RX. No reason it would not work. > I'd like to keep as much of the SDR spurious signals out of the K3 as > possible. AS long as you were using an SDR with reasonable isolation (e.g., LP-Pan, SDR-IQ, P3) and *NOT* a SoftRock with its high LO leakage, you should not have a problem putting the buffer inside the K3/KRX3. Even then, one could use a the Clifton Labs Z10010 Bandpass filter between the K3/KRX3 and the SDR for extra protection. 73, ... Joe, W4TV On 8/17/2010 3:53 PM, Brian Alsop wrote: > N2QT's write up on this is great > http://groups.yahoo.com/group/Elecraft_K3/files/KRX3_IF_Out/ > > However, I'm wondering if an alternative might be to duplicate the IF > JFET circuitry of the main RX and put it on a small perfboard inside the > SUBRX. Then feed that output to a jack just like the main RX. > > Thinking the following components C55,C59,C68, R8,R9,R89, RFC22 and Q10 > would be all that is necessary. > > The Clifton labs buffer/preamp would remain outside of the K3. > > I'd like to keep as much of the SDR spurious signals out of the K3 as > possible. > > Comments? > > 73 de Brian/K3KO > __ > 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] Import to the UK
Hi Simon, May I add to David's answer that : a) Radio amateur equipments and parts are specifically exempt from custom duties (at least in the European Community), so that effectively only the VAT is due on imports of goods from abroad b) VAT is a tax levied by your administration at the same rate on both locally produced and imported goods/services, while Custom duties are perceived only on imported goods at a rate (logically) defined in order to hedge foreign commercial competition (This objective has probably been largely missed for the last ten or twenty years). This means that the rate of these custom duties depends on the kind of goods or services. 73 de Raymond, F4FNT K2/100 #5,636, K3/100 #0615 __ 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 rs232 problem
Hugh Sent from my iPhone On Aug 16, 2010, at 13:38, Guy Olinger K2AV wrote: > Run the K3 utility and see if you are able to do various tasks, view > the contents, filter settings, etc. If you can do that, then there is > most likely just some problem with the MM hookup. > > If you can't run the utility properly, then if you have a USB serial > device, try replacing it, or using different USB ports on the PC. If > you can get it to work anywhere, then you have your answer. > > 73, Guy. > > On Mon, Aug 16, 2010 at 4:16 PM, Juha - oh6os wrote: >> >> Hello! >> >> Rs232 don't working well. My computer COM-port (same) working with my K2 >> very well. I just can send frequency from N1MM-logging program to K3 but >> nothing else. >> >> Here was lightning last weekend. I removed antenna from K3 and computer >> power cord. I found post on list something about lighting and problem with >> rs232. What was the solution? Help me! >> >> 73 de juha - oh6os >> K3 #2100 >> K2 #4781 >> >> -- >> View this message in context: >> http://elecraft.365791.n2.nabble.com/k3-rs232-problem-tp5429452p5429452.html >> Sent from the [K3] 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] P3 cable length
RS232 = 3 ft RG58 (with BNCs) = 3ft 12v DC (K3 to P3) = 2 ft 73 de M0XDF, K3 #174, P3 #108 -- The nice thing about standards is that there are so many of them to choose from. -Andrew Tannenbaum, computer science professor (1944- ) On 17 Aug 2010, at 20:36, Jim Spears wrote: > What is the length of the cables (RG59 and serial) supplied with the P3? __ 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] Import to the UK
UPS to the UK, however, costs a lot more than USPS. Around $100 extra for a P3, for example - more than double USPS. This could well be more than the import duty demanded. I have never been asked for import duty by ParcelForce, but I believe those who have get it back in the end. 73 to all Geoff G3UCK - Original Message - From: "David Ferrington, M0XDF" Sent: Tuesday, August 17, 2010 8:48 PM Subject: Re: [Elecraft] Import to the UK > Maybe another reason to use UPS, never been asked once :-) > 73 de M0XDF, K3 #174, P3 #108 > > On 17 Aug 2010, at 20:42, Roger Dallimore wrote: >> You are not liable to import duty but most of my many orders from >> elecraft (even with commodity codes correctly printed on the box) still >> arrive with a demand for import duty before Parcel Force will hand over >> the parcel. __ 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 Ref. in Jack?
It is probably reserved for a SMA connector (God forbid that its a mini-siemens connector). Milton AD5XD --- On Tue, 8/17/10, Brian Alsop wrote: > From: Brian Alsop > Subject: [Elecraft] K3 Ref. in Jack? > To: elecraft@mailman.qth.net > Date: Tuesday, August 17, 2010, 1:17 PM > Anybody know what kind of connector > is supposed to go in the REF.IN. > hole? It is apparently too small for a BNC. > > 73 de Brian/K3KO > __ > 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 - small power supply 110-240VAC
Jorge, I like the Samlex 1223. It operates on 110 or 220, 50 or 60Hz and is very quiet. We used them at 9L5A last year for CQWW CW and I have used one at home for years. 73, Bud N7CW -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Jorge Diez - CX6VM Sent: Tuesday, August 17, 2010 12:37 PM To: elecraft@mailman.qth.net Subject: [Elecraft] K3 - small power supply 110-240VAC Hello, Do you know about a good power supply for the K3, to be used in any country and lightweight? Thanks, Jorge CX6VM/CW5W __ 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 #4407 - dead
Second that. Insurance is providing full replacement value and probably a good deal is reuseable. Let Elecraft figure it out for you. You will find you will be able to sell the busted radio if you know what is bad, even if you decide to go with full replacement. All the case and hardware, at minimum. 73, On Tue, Aug 17, 2010 at 3:55 AM, David Ferrington, M0XDF wrote: > I advise sending your K3 to elecraft for them to look at with a view to > replacing damaged parts, you could be looking at a 50% saving. Enough to > purchase a P3 or KPA500 when available. > 73 de M0XDF, K3 #174, P3 #108 > -- > A child, like your stomach, doesn't need all you can afford to give it. > -Frank A. Clark, writer (1911- ) > > On 17 Aug 2010, at 07:56, Gary Dezern wrote: > >> Got a call from the insurance company today - they approved my claim. >> Probably a week or so before I see the check, and then I'll be calling up >> Elecraft for a replacement. Looks like I'll make it in time to avoid the >> price increase as well! >> >> I'll likely configure the new one identically to the old: K3/100, KAT3, >> KBPF3, TCXO upgrade, KXV3A, KDVR3 and 2.8k/1.8k/6k/400 8 pole filters. This >> seemed to work out well for me. >> >> The insurance company told me I could do whatever I want with the old K3 >> (and everything else that was damaged.) I wonder if I could salvage the >> 8pole filters and put them in the new radio... the savings would almost >> cover the deductible. > > __ > 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] P3 cable length
What is the length of the cables (RG59 and serial) supplied with the P3? Jim/N1NK K3/100 s/n 2295 P3 s/n ??? __ 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 rs232 problem
Are you using a regular rs232 PC port or are you using PC USB and USB-rs232 cable? On Tue, Aug 17, 2010 at 3:27 AM, Juha - oh6os wrote: > > I can't using K3 Utility with rs-232. > > juha - oh6os > -- > View this message in context: > http://elecraft.365791.n2.nabble.com/k3-rs232-problem-tp5429452p5430980.html > Sent from the [K3] 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] K3 subrx IF out query.
N2QT's write up on this is great http://groups.yahoo.com/group/Elecraft_K3/files/KRX3_IF_Out/ However, I'm wondering if an alternative might be to duplicate the IF JFET circuitry of the main RX and put it on a small perfboard inside the SUBRX. Then feed that output to a jack just like the main RX. Thinking the following components C55,C59,C68, R8,R9,R89, RFC22 and Q10 would be all that is necessary. The Clifton labs buffer/preamp would remain outside of the K3. I'd like to keep as much of the SDR spurious signals out of the K3 as possible. Comments? 73 de Brian/K3KO __ 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] Import to the UK
Maybe another reason to use UPS, never been asked once :-) 73 de M0XDF, K3 #174, P3 #108 -- One glance at a book and you hear the voice of another person, perhaps someone dead for 1,000 years. To read is to voyage through time. -Carl Sagan, astronomer and writer (1934-1996) On 17 Aug 2010, at 20:42, Roger Dallimore wrote: > Hi Simon, > > You are not liable to import duty but most of my many orders from > elecraft (even with commodity codes correctly printed on the box) still > arrive with a demand for import duty before Parcel Force will hand over > the parcel. > > Keep every sticker on the parcel just in case you are charged. I have > always been able to reclaim import duty but it is very long winded, > usually taking several months and they have always asked for the > "original" customs labels/invoice to support my refund. > > Good luck with your K3, you'll have a lot of fun with 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] 100 watt option and 2 meter option.
I have a K3 that I have used for over a year and a half and I love it. About 11months ago , I bought the 100 watt option - but never installed it and now I have the 2 meter option and plan to do both at once. Is there anything I need to look out for. Thanks. Pat N4LTA __ 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] Import to the UK
Hi Simon, You are not liable to import duty but most of my many orders from elecraft (even with commodity codes correctly printed on the box) still arrive with a demand for import duty before Parcel Force will hand over the parcel. Keep every sticker on the parcel just in case you are charged. I have always been able to reclaim import duty but it is very long winded, usually taking several months and they have always asked for the "original" customs labels/invoice to support my refund. Good luck with your K3, you'll have a lot of fun with it! 73 Roger MW0IDX K3 #191 K2 #2724 KX1 #416 KPA500? > My Questions: > > Is there a difference between "Import Duty" and VAT > > Am I liable for both? > > Any tips as to how to make sure that Parcel Force get it here? > > > Fingers are crossed... > > > TIA > > Simon 2E0SCF > > __ 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 Ref. in Jack?
I think it was originally intended to be a panel mount SMA. There was some recent discussion around Elecraft -possibly- developing a form of crude GPS-lock that may make use of this connector hole. No word on possible timeline. Bruce, N1RX > Anybody know what kind of connector is supposed to go in the REF.IN. > hole? It is apparently too small for a BNC. > 73 de Brian/K3KO __ 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 - small power supply 110-240VAC
Hello, Do you know about a good power supply for the K3, to be used in any country and lightweight? Thanks, Jorge CX6VM/CW5W __ 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] Discoveries
Hi, I am painfully aware of that. Clip-ons in this case was the only practical thing to try. AB2TC - Knut Jim Brown-10 wrote: > > On Tue, 17 Aug 2010 10:06:47 -0700 (PDT), ab2tc wrote: > >>I have tried clip-on ferrites on >>every wire coming out of the router, > > Clip on ferrites are not effective at HF unless you wind multiple > turns through them. Multi-turn ferrite chokes ARE effective. Study > http://audiosystemsgroup.com/RFI-Ham.pdf > > 73, Jim Brown K9YC > > -- View this message in context: http://elecraft.365791.n2.nabble.com/P3-Discoveries-tp5428581p5433489.html Sent from the [K3] 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
Re: [Elecraft] [P3] Discoveries
On Tue, 17 Aug 2010 10:06:47 -0700 (PDT), ab2tc wrote: >I have tried clip-on ferrites on >every wire coming out of the router, Clip on ferrites are not effective at HF unless you wind multiple turns through them. Multi-turn ferrite chokes ARE effective. Study http://audiosystemsgroup.com/RFI-Ham.pdf 73, Jim Brown K9YC __ 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 Ref. in Jack?
Anybody know what kind of connector is supposed to go in the REF.IN. hole? It is apparently too small for a BNC. 73 de Brian/K3KO __ 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 Cursor Position
David Ferrington, M0XDF wrote: > I think I must be very fortunate, since I appear to be able to > determine many more colours than 16. Not having been able to build my > P3 yet (waiting for the nuts!), I can't be sure, but it looks like > the cursors are both U channels, what if one was an upside down U, > would that help? Yep, they're both little square "U's." I didn't have any problem using them. Without the sub-rx, you always receive on whatever is in VFO A, so it's sort of moot, you're listening at the cursor on the center frequency, and if VFO B is not on the same frequency, it's the other cursor. I don't know if the U-channels swap colors when you do an A|B on the K3, but it doesn't matter. My K3 doesn't have the sub-rx, so I'm not familiar with its operation. Rick's K3 had the sub-rx and I'm not sure of the P3 cursor behavior when you do A|B in that case, I didn't try it. There was no manual at the operating position [it was at the West Coast CW Gathering in Reno Nevada and we were signing W6FOC/7 from the 17th floor of the Peppermill Hotel], however it can't have taken me more than 3 or 4 minutes to figure out the basics of the P3. The controls were very intuitive, I somehow knew that tapping DISPLAY would [eventually] get rid of the waterfall and fill the screen with the spectrum and it did. I'm sure there are a host of features I didn't get to, but I was using it on the air very quickly. It came across to me as highly consistent user-interface engineering, just like I expected from Aptos. The "16 colors, Windoze default" is a "sort of joke," although a lot of males seem to be less sensitive to closely related colors than females, and many who can name colors don't really care, one kind of green is as good as another :-) And in the "Think before you ask" department, people often ask me, "Well, just what colors can you see?" The answer of course is "All of them ... I just can't name them." 73, Fred K6DGW - Northern California Contest Club - CU in the 2010 Cal QSO Party 2-3 Oct 2010 - www.cqp.org __ 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] K2, low output in digital modes
Hi Elekrafters I need your help. My K2/100 nr. 03529 with KSB2 SSB adapter and KAT 100 Antenna Tuner has been working perfectly since I built it, with the exception of some minor problems that were solved either with the help of Don Wilhelm or after a search in the e-mail list reflector. But now I detected a problem unnoticed until now: I work mainly CW and digital modes. In 40, 30 and 20 meters, in PSK 31 or RTTY, I could get easily about 40 watts output, corresponding to one bar flickering in ALC bargraf. So all was apparently all right. But I have tried recently the 10 m. band and noticed that when selecting my RTTY filters configuration I can get only near 20 watts in rtty, and less than 10 watts in rtty-r. When I use in this band the USB or LSB configuration, and transmit RTTY or PSK, I get about 90 watts, the same output as in CW.. I have seen now that this drop in output happens in all bands, but I had’nt noticed it because I was able to get 30-50 watts in the lower bands, even in RTTY configuration. The same output drop happens in QRP configuration. Summarizing, in digital transmissions when in RTTY the output is significantly lower than when in SSB, and the higher the frequency the lower the output power. I realigned my filters with the help of Spectrogram, applying the same settings for OP-! SSB and OP-1 RTTY (there were some small differences before this realignment), but to no avail. Although I can continue working digital modes using the SSB configurations, I would like to know the reason of this behaviour and how to solve it. Your help will be greatly appreciated. Best regards Raimon EA3EZO rfui...@telefonica.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
Re: [Elecraft] K3 and USB Audio Codec
Kok Chen wrote: > > One good connection that I have come across is S/PDIF that is > available on the Icom IC-7800. It allows a connection between the > radio and the computer that is completely non-galvanic. No ground > loops, no RFI, down to -144 dB. > > S/PDIF provides an audio path with up to 20 bits of resolution (about > 120 dB, with 1 bit being 6.02 dB), with 24 bits being an option by > using the extra 4 steering bits as data. > > The standard sampling rate for S/PDIF is 48,000 samples per second > stereo, which would support almost 50 kHz of bandwidth on an baseband > I/Q channel. S/PDIF provides up to about 30 feet separation between > equipment. > I built an amplitude-modulated IR fiber link using cheap parts and got poor results due to fluorescent light leakage into the jacketed cables. I've tried hard to find available chipsets for S/P DIF but come up short. A well-shielded box or internal optical connection for radio would be a nice thing to have for ham equipment. Leigh/WA5ZNU -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-and-USB-Audio-Codec-tp5277614p5433258.html Sent from the [K3] 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
Re: [Elecraft] [P3] Discoveries
I have a blip on the panadapter every ~60kHz over a very wide bandwidth. It is worst on the 15m band. It appears to be coming from my Verizon supplied Ethernet router possibly aided by a Gigabit switch just next to it. It is partly picked up by my antenna, but inadequate shielding in my MFJ tuner/SWR meter/antenna switch helps make it worse. I have tried clip-on ferrites on every wire coming out of the router, including the power supply, to no avail. Does anybody have any insight on what on Ethernet is going on at approximately the 60kHz rate? AB2TC - Knut Rick Prather-2 wrote: > > I can second that! > > As soon as I got the P3 working I realized that the annoying buzz I had > noticed occasionally as I tuned 20 Meters was actually a nasty, wide 20db > noise source every 50 Khz. It looked so bad on the P3 that it got me > motivated to check it out. > > After a bit of disconnecting things here in the house before I was going > to start flipping fuses I disconnected my u-Verse modem and killed the > noise. Then with the modem running again I started disconnecting > connections - ethernet, data in/out and phone connection. By rerouting > the phone line I was able to drop it about 10db. Still there but better > and now I have a roadmap to work on as much of the remainder as I can. > > It's amazing how what seemed like a minor annoyance became an obvious > problem when it shows up on the scope! > > BTW, has anyone noticed the very interesting waterfall pictograms created > by the Chinese radar just below 40 meters? > > Rick > K6LE > > -- View this message in context: http://elecraft.365791.n2.nabble.com/P3-Discoveries-tp5428581p5433063.html Sent from the [K3] 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
Re: [Elecraft] KDVR3 and Monitor
That is a great thought, Mike, and one that has been on the infamous list of software upgrades for many months. Each time an upgrade is released, several of us keep our fingers crossed that it includes the facility to temporary adjust the monitor to a preset level during retransmission of an off-air recording. Any progress on this, Wayne? 73 de David G4DMP In a recent message, N8XPQ wrote ... > >As I was using the DVR to playback messages, i thought that it would be nice >to have a menu option that would turn on the monitor function to a desired >level on play back of stored/pre-recorded, and recorded on-air audio from >the KDVR3. I find myself playing back audio many times and forgetting that I >don't have the monitor function turned on. I suppose I could write a macro >for this, but don't really want to take a button space away from other >options. > >Just a thought, > >73's Mike N8XPQ -- David G4DMP Leeds, England, UK -- __ 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] Import to the UK
Thanks for the off list replies. Consensus is Yes you pay VAT No you don't pay import duty UPS is better if you can afford it Ta Simon 2E0SCF __ 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] KDVR3 and Monitor
As I was using the DVR to playback messages, i thought that it would be nice to have a menu option that would turn on the monitor function to a desired level on play back of stored/pre-recorded, and recorded on-air audio from the KDVR3. I find myself playing back audio many times and forgetting that I don't have the monitor function turned on. I suppose I could write a macro for this, but don't really want to take a button space away from other options. Just a thought, 73's Mike N8XPQ -- View this message in context: http://elecraft.365791.n2.nabble.com/KDVR3-and-Monitor-tp5433017p5433017.html Sent from the [K3] 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
Re: [Elecraft] [P3] Discoveries
On Tue, 17 Aug 2010 11:48:41 -0400, Paul Christensen wrote: >So, although the K3 and P3 would be effective as a noise detection tool, I >think a netbook PC with SDR-IQ would be more effective for noise >identification when considering the ability to quickly save screen captures >to disc, as well as size/weight of the gear package needed while on foot. All great observations. Thanks Paul. 73, Jim K9YC __ 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] Discoveries
> Yes. RFI consultant Mike Martin recently posted a note that he's now > using a P3 and K3 as part of his RFI chasing kit. I intend to do the > same with mine. Connected to a suitable antenna, it's a powerful (and > portable) tool. Jim, similar setup here for chasing down switch-mode noise in the surrounding neighborhood. For the past eighteen months, I've been using the K3 with gel cell, SDR-IQ, netbook PC, SpectraVue software, and Palstar rotating loop antenna with the tropical band loop. Most of my switch-mode noise is pronounced between 2-7 MHz. The loop will resonate anywhere between 160m and 40m. Although this set-up works very well, the next step is to eliminate the K3 and use only the SDR-IQ with netbook PC + loop. This should significantly reduce the package size and weight for my treks in the neighborhood. Since the SDR-IQ is powered by the netbook PC, it also eliminates an external battery power source required for the K3 and P3. The results with SpectraVue are self-documenting with fast screen captures. This has helped when showing problems to the neighbors and if necessary, its excellent supporting evidence if filing an RFI/EMI complaint with the FCC. The loop antenna's directivity up through 40m is so sharp that most switch-mode noise sources can be localized to one part of the house from street distance. So, although the K3 and P3 would be effective as a noise detection tool, I think a netbook PC with SDR-IQ would be more effective for noise identification when considering the ability to quickly save screen captures to disc, as well as size/weight of the gear package needed while on foot. Paul, W9AC __ 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] Discoveries
On Mon, 16 Aug 2010 09:46:25 -0700, dalekretzer wrote: >The post by Gary, VE1RGB, about unexpected benefits of having the P3 >panadapter struck a chord with me worth sharing. Yes. RFI consultant Mike Martin recently posted a note that he's now using a P3 and K3 as part of his RFI chasing kit. I intend to do the same with mine. Connected to a suitable antenna, it's a powerful (and portable) tool. 73, Jim Brown K9YC __ 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] K2 Initial Power up
Nate, I cannot say whether that would help or not - while it is possible that it would work, if it does not work with the external oscillator, then you have not discovered much of anything. There are several possibilities. First is that you just may not be hearing the 4 MHz oscillator. Even if the 4 MHz oscillator does not start, you will still see the K2 try to power on - yes, it will not be successful, but at least you should detect a "blink". Substitution is the quickest way to localize a problem. Do you have any other K2 owners around? If so, perhaps they would let you temporarily swap their Control Board for theirs. If it works, you know that the problem is on your Control Board. Next step would be to put their firmware chip on your Control Board. If yours works, then you will know that the firmware chip has been damaged. Use good anti-static measures when changing out a firmware chip, they can be damaged by mishandling. I would rather see you checking the components in you 4 MHz crystal area, C21, C22 and X2 for proper values and good soldering. While anything can be faulty, the chance that the crystal is bad is small. 73, Don W3FPR dogbulter wrote: > Since I cannot detect the 4mhz oscillator at the MCU (U6), I was wondering if > I could use an external clock to make sure everything else is working. I > would use a Pongrance Digital VFO to inject a 4mhz signal into pin 14 (OSC1) > and remove C21, C22, and X2. If this works I could at least determine > something is wrong with the oscillator section. > > Please let me know what you think. > > Nate > __ 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- 4536 Fixed my rattle!
Hi, For information purposes I'd like to annouce I fixed my rattle. I built my K3 about 2 weeks ago, and had a rattle caused by the large, thick spacer washer on the phone jack. Well, I tried tightening it but still no joy. This week, I installed the Digital Voice Recorder and therefore had to take the frnt panel apart. I had ordered another washer in hopes that two would be thick enough to fill the space. Well, it waw too much. I searched the junk box and found a internal star lock washer that fit the bushing of the phone jack, and it was the perfect thickness to fill the void. Now I have the knurled nut tight, and no rattle! The DVR works real well. I used it last night to answer some CQ's and recordedd some incoming audio. Next item, maybe tuner or some filters Elecraft Rules.. ...bc __ 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 and USB Audio Codec
Werner, > There is no (cheap) Soundchip in the radio. The USB Audio Codec is > directly created out of the IF-DSP of the transceiver. There are no > inaccuracies of the cheap soundchip quartz and there is no cascading > of DSP's, that is a significant difference in quality. The block diagram tells a completely different story. It shows the USB sound chip IC3202 is a PCM2901 with AAFO and UMOD. PCM2901 is from the same family of USB CODECs used in many of the amateur "soundcard interfaces" - e.g., RigExpert, Navigator, Signalink USB, etc. The connections - AAFO and UMOD - are AUDIO. AAFO is ANALOG demodulator audio (the output of D/A IC1692 following the DSP) and UMOD is an AUDIO input to the transmit DSP modulator (IC1661). The performance of "USB Audio CODEC" in the 7200 is (and can be) no different than that of any other well designed PCM2901 circuit driven by the "demodulator" output on the ACC jack in any of the other Icom transceivers. > This is an interesting approach in my opinion and has two major > advantages. Better quality of the signal for soundcard modes > independent from external soundcards, no additional cables and > devices for mobile use. The only "advantage" is the lack of a separate box. The design is no different than the IC-7000 and a product like the microHAM USB Interface III. However, IC-7200 lacks support for FSK, pFSK (fldigi), audio keyed CW, a computer CW interface and audio pots to allow optimizing drive levels to take full advantage of the PCM2901 dynamic range (the PCM2901 has *NO* input gain control). 73, ... Joe, W4TV On 8/17/2010 2:21 AM, Dr. Werner Furlan wrote: > hi Joe, > > I am a bit late for a reply, but anyway. > The way the codec is implemented is (as far I understand it) different and > more straitforward. There is no "soundcard" in the radio, but the data > stream is directly derived from the IF-DSP. > My friend Gert, OE3ZK described it as follows: > > Es wird kein eigener (billig) SoundChip eingesetzt. Die USB Audio CODEC > Aufbereitung erfolgt direkt aus der ZF-DSP der Transceiver. Abgesehen von > den Quarzungenauigkeiten der billig Sound-Chips wird DSP nicht > kaskadiert, das ist der wesentliche Qualitätsunterschied. > > I translate: > There is no (cheap) Soundchip in the radio. The USB Audio Codec is > directly created out of the IF-DSP of the transceiver. There are no > inaccuracies of the cheap soundchip quartz and there is no cascading of > DSP's, that is a significant difference in quality. > > I have a block diagram of the IC-7200 on my website, you can see it here: > http://oe9fwv.shacknet.nu/oe9fwv/bilder/IC-7200%20USB.jpg > > This is an interesting approach in my opinion and has two major > advantages. Better quality of the signal for soundcard modes independent > from external soundcards, no additional cables and devices for mobile use. > A radio and the computer. > Thats all. Remote control included. > > 73! de Werner OE9FWV > > > Joe Subich, W4TV-4 [via Elecraft] schrieb am 13 Jul 2010 um 9:17: > >> >> >>> I don't trust the quality of an external soundcard of this price. >>> It might be sufficient for PSK31 but probably not for Winmor. The >>> Signalink USB is good, but not for 20 bucks. >> >> The USB Audio CODEC integrated circuit in the IC-7000 or IC-7600 has >> the same specifications as the USB Audio CODEC in Signalink or a $15 >> USB headset adapter. There is no benefit to putting audio to digital >> conversion in the radio and bringing the audio out using a driver >> dependent protocol. >> >> An integrated "USB audio CODEC" is nothing more than a gimmick that >> provides no performance benefit while limiting user flexibility/choice, >> increasing cost and decreasing reliability. >> >> If one were going to provide digital output, it would be far better >> to stream the raw in I/Q data from the DSP's ADC via firewire rather >> than push it through two additional A/D and D/A steps and reduce it >> to a single channel of audio. >> >> 73, >> >>... Joe, W4TV >> >> >> On 7/10/2010 3:48 PM, oe9fwv wrote: >> >>> >>> I don't trust the quality of an external soundcard of this price. It >> might be >>> sufficient for PSK31 but probably not for Winmor. The Signalink USB is >> good, >>> but not for 20 bucks. >>> I have not heard of a problem with the DSP in the IC-7200 or 7600. From what I have heard this is not a real soundcard but the IF passband >>> after the DSP is sent to the audio codec via USB. >>> It would make it very easy using the K3 for digital soundcard modes >> without >>> another external device. >>> >>> 73! de Werner OE9FWV > __ 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] Import to the UK
see embedded answers below On 17 Aug 2010, at 13:48, Simon Faulkner wrote: > K3/100 ordered and in the UK according to USPS: > Shipment ActivityLocation Date & Time > > Into Foreign Customs GREAT BRITAIN 08/17/10 > 11:00am > I understand that Parcel Force will write to me so I can pay their > charge and the slice for our government. YES > My Questions: > Is there a difference between "Import Duty" and VAT YES > Am I liable for both? NO - you should only pay VAT, Elecraft put the right codes on to avoid the Duty. You will probably have to pay a handling charge too. > Any tips as to how to make sure that Parcel Force get it here? I've nearly always used UPS, so no, but I'd follow the tracking number closely and ring them - you probably have to ring and pay the VAT and handling chare via card anyway (UPS will take a cheque at the door). > Fingers are crossed... And Toes ! 73 de M0XDF, K3 #174, P3 #108 __ 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] K2 Initial Power up
Since I cannot detect the 4mhz oscillator at the MCU (U6), I was wondering if I could use an external clock to make sure everything else is working. I would use a Pongrance Digital VFO to inject a 4mhz signal into pin 14 (OSC1) and remove C21, C22, and X2. If this works I could at least determine something is wrong with the oscillator section. Please let me know what you think. Nate -- View this message in context: http://elecraft.365791.n2.nabble.com/K2-Initial-Power-up-tp5430109p5432099.html Sent from the [K2] 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] Import to the UK
Hi All, K3/100 ordered and in the UK according to USPS: Shipment ActivityLocation Date & Time Into Foreign Customs GREAT BRITAIN 08/17/10 11:00am Yay! I understand that Parcel Force will write to me so I can pay their charge and the slice for our government. My Questions: Is there a difference between "Import Duty" and VAT Am I liable for both? Any tips as to how to make sure that Parcel Force get it here? Fingers are crossed... TIA Simon 2E0SCF -- Simon Faulkner 01538 303 900 Staffordshire Moorlands __ 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] Waterfall Resolution
David Gilbert wrote: > > Of all the various non-SDR applications I tried that are capable of > displaying a waterfall (Spectrogram, DigiPan, MixW, MultiPSK, etc) CW > Skimmer was heads above the rest, but the recent comments about the > sharpness of the P3 display make me wonder if the P3 is potentially > better in spite of the smaller screen. With CW Skimmer, visual copy > above roughly 35 wpm gets pretty dicey. > With very careful adjustment of the P3's Ref Lvl and Scale, some dots and dashes can be made visible. Skimmer is much better at this and the display works with no adjustments necessary. I believe Alex VE3NEA is using some AGC to adjust for varying noise conditions and signal levels. My decoder is much better than either, but it's not for sale. ;-) 73, Bill -- View this message in context: http://elecraft.365791.n2.nabble.com/P3-Waterfall-Resolution-tp5430132p5431616.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
Re: [Elecraft] /Spectrogram517.zip
It also works fine on a minimal Pentium 4 under XP, although at the lowest sample rate it is still using ~50 percent of the CPU's resources. I would hesitate to combine that with all the computing burdens imposed by a contest logging program and a heavy spot flow from the Internet. 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 8/16/2010 6:24 PM, John Ragle wrote: > Spectrogram 16 works fine with WIN 7 Ultimate (32 bit). It keeps several > useful > files, including a manual in its folder, in c:\program > files\visualization software\spectrum 16. The manual > clarifies matters a bit wrt to the WIN 7 mixer, etc. even though it > stops with VISTA. > > Thanks to all the Japanese who contributed help... > > John Ragle -- W1ZI > __ > 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 Cursor Position
I think I must be very fortunate, since I appear to be able to determine many more colours than 16. Not having been able to build my P3 yet (waiting for the nuts!), I can't be sure, but it looks like the cursors are both U channels, what if one was an upside down U, would that help? 73 de M0XDF, K3 #174, P3 #108 -- Man is the best computer we can put aboard a spacecraft and the only one that can be mass produced with unskilled labour. -Wernher von Braun, rocket engineer (1912-1977) On 16 Aug 2010, at 22:00, Fred Jensen wrote: > Most hams are male, most > males max out at about 16 colors [Windows default], "peach" is a fruit, > not a color if you're male, and no male knows what mauve is. __ 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] P3 #33 ANZA Net on Youtube
Hi all This is my first effort at uploading to youtube.com. Try: http://www.youtube.com/watch?v=aiUUO1pzM0k It will probably be my last as well until I get a faster connection :( 2+ hours to upload about 100Mb file!!! Anyway it is about 90seconds worth of the ANZA DX Net checkin session with KI6KFB (Kentucky Fried Bannanas) as net control Notice the width and strength of the Chinese OTHR signal which was still there at 07.00z. vry 73 Peter ZL1PWD K3#139 P3#33 __ 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 #4407 - dead
I advise sending your K3 to elecraft for them to look at with a view to replacing damaged parts, you could be looking at a 50% saving. Enough to purchase a P3 or KPA500 when available. 73 de M0XDF, K3 #174, P3 #108 -- A child, like your stomach, doesn't need all you can afford to give it. -Frank A. Clark, writer (1911- ) On 17 Aug 2010, at 07:56, Gary Dezern wrote: > Got a call from the insurance company today - they approved my claim. > Probably a week or so before I see the check, and then I'll be calling up > Elecraft for a replacement. Looks like I'll make it in time to avoid the > price increase as well! > > I'll likely configure the new one identically to the old: K3/100, KAT3, > KBPF3, TCXO upgrade, KXV3A, KDVR3 and 2.8k/1.8k/6k/400 8 pole filters. This > seemed to work out well for me. > > The insurance company told me I could do whatever I want with the old K3 (and > everything else that was damaged.) I wonder if I could salvage the 8pole > filters and put them in the new radio... the savings would almost cover the > deductible. __ 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 rs232 problem
I can't using K3 Utility with rs-232. juha - oh6os -- View this message in context: http://elecraft.365791.n2.nabble.com/k3-rs232-problem-tp5429452p5430980.html Sent from the [K3] 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
