[Elecraft] XV-50 / XV-144 For Sale
FOR SALE: ELECRAFT: XV-50 w/ XVOVN . $300 ELECRAFT: XV-144 w/ XVOVN . $400 Or $600 for the pair. Excellent condition, non-smoking environment. Reason for selling: Not required with my K3. Contact direct: w8...@yahoo.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 Message delivered to arch...@mail-archive.com
[Elecraft] K3 PTT with DEMI Transverters
To: All that responded. Thanks to all of you that responded to my request for information. Much useful information was received (simple to complex schematics) from many respondents for auto switching PTT and TXin / TXout lines to many Xvtrs. I intend to proceed with one of the simpler circuits at this time, but will keep the other schematics on file in case I add more Xvtrs later. Again thank you for all of your very useful comments and information. 73, Ken - W8KEN __ 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 Message delivered to arch...@mail-archive.com
[Elecraft] K3 PTT with DEMI Transverters
Gentlemen, I am looking for a circuit that one of you K3 users may have designed to automatically switch the K3 PTT line between multible external transverters as the K3 is switched from band to band. I presently use the K3 PTT line to key my 6m amp driven with 30 w from my K3. I recently purchased a DEMI 2m HP transverter to drive my 2m 3CX800 amp. The DEMI puts out 50 w with 1 mw of drive from the K3. The problem I have is when I key the DEMI Transverter from Pin 10 on the K3 15 Pin accessory socket, the K3 PTT out on the back of the K3 also Keys my 6m Amp even though the K3 is set to 2m. I need a circuit that will decode the BCD output from the K3 15 Pin connector to key the 6m Amp when I am on 6m and automatically switch the PTT line to the DEMI Transverter when I am on 2m. A manual switch would be very inconvenient for VHF contesting as one need to quickly QSY between bands with one station for multiple points. Also in the future I might add a 432 Transverter and would like to auto switch the PTT for it also. I would only require three outputs as I would only switch between 6m, 2m and 70 cm. I am a Mechanical Engineer with limited Electrical knowledge. I did build a K2 and can breadboard stuff from a schematic and parts list, but I am not a circuit designer and have no knowledge of digital logic stuff other than I know it exists. I am in need of a designed and tested circuit that is know to work reliably. Given the circuit diagram and a parts list I could then reproduce it. Your help is greatly appreciated. Thank you in advance for any information you can provide. 73, Ken - W8KEN PS: you may contact me off line at w8...@yahoo.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Possible P3 Anomaly
All, I have noticed the long (several second hang time) before the P3 switches back to RX after Xmit.I do have the XVGA board installed to drive my 20 16x9 Monitor.I have also noticed that at times the display on the monitor is offset from the P3 display, eg the P3 display shows signals within my TX and RX band width markers, but the signals (or the marker) do not align on the large monitor. Resetting the P3 resolves the display alignment problem, but not the refresh or hang time problem. Ken - W8KEN On Tuesday, December 30, 2014 1:27 PM, Fred Jensen k6...@foothill.net wrote: Since Wayne has returned from the holidays and the P3 Freeze is on the list, here's a little more data but not necessarily information ... I have never observed the behavior being discussed on the P3 Bug thread. I have always observed the following: Select band 1 [doesn't matter what band], set REF LVL to put the noise on the baseline. Waterfall background is black, signals show up white [I'm in monochrome WF mode]. Select band 2 [doesn't matter what band], set REF LVL to put the noise on the baseline. Re-select band 1. The noise will be above the baseline by about 10 dB or so and WF background will show the noise. After maybe 2 seconds, noise shifts down to the baseline and WF background goes black. Happens every time I change bands, regardless of how I do it [BAND UP/DN on K3, band buttons on KPA500, or typing a frequency in the N1MM entry window], and it always has. I don't think it is related in any way to the discussion but one never knows with software. During those 2 sec, it appears the P3 is receiving and displaying a valid spectrum, just offset above the baseline. It's not a problem for me, I consider it normal operation and it is what it is. But, just in case it's relevant ... 73, Fred K6DGW - Northern California Contest Club - CU in the 50th Running of the Cal QSO Party 3-4 Oct 2015 - 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 Message delivered to w8...@yahoo.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] P3 Beta code 'ghost' issue; Data A revisited
I agree with Rick's comments above. I use N1MM for FSK RTTY. I have an extra RX window set up to receive signals from VFO B in split mode so I can tell who the last worked station was while I copy the DX with VFO A. With a narrow 400 hz bandwidth and 10 khz span on my P3 I can easily tune from station to station centering his tones in the narrow P3 curser. A 2.7 KHz curser pattern on the P3 would cover up most of what I want to see. I for one would not upgrade my P3 software until this issue is corrected. A narrow 400 Hz curser is necessary for both VFO A and B in RTTY as far as I am concerned. 73, Ken - W8KEN On Sunday, April 27, 2014 3:34 AM, Rick Bates, WA6NHC happymooseph...@gmail.com wrote: This evening as I was listening to a moderately weak station on 30 meters CW. I noticed that the P3 display showed a wide (+-.75 KHz from center) pulse pattern centered on the frequency I was on. I also noted that there was a strong (XE2, not that it matters) almost 3 KHz down. The P3 pattern matched the CW pulses of that station down band. I wasn't hearing anything but the weak station on the K3 (well done Elecraft). So I wondered, could this anomaly be caused by the new noise blanker algorithm? Yup. I turned off the P3 NB function (set at 12) and the anomaly went away. So if you're seeing something on the P3 that isn't there, turn off the NB function and watch again. On the subject of the Data A red pattern width change; my normal set up for working RTTY/PSK (AFSK, Data A mode) split was: Narrow and recenter the filter to hear only the station I want to work (sound card doesn't get hosed); sync the two VFOs (double tap; copy everything over to B); go split; move the VFO B (now with the matching pattern of VFO A RX, in red) on top of the last station worked, fine tune by listening to the sub-RX if desired. The former (pre-beta) pattern showed the same narrowed width as the main RX (shows the slot my audio tones would go out), which made it easy to spot the (TX) VFO B on or near the last station worked, simply line up their trace under the red swath. This makes for a nice quick attack mode. Having the wider red pattern (2.7 KHz) makes this much harder now since I can't 'see' where my tones are going to be. If given a vote, I like the old way better if the P3 can't read the filter width and match the display to the actual. At least I had a ballpark idea where my tones would go. 73, Rick, WA6NHC iPad = small keypad = typos = sorry ;-) __ 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 Message delivered to w8...@yahoo.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 Message delivered to arch...@mail-archive.com
