K3 and JT65/WSPR
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I have been wanting to try the JT65 and other modes on 6 meters. Thought it would be a simple setup but its not working. Good audio coming from the computer Line out and going to the K3 Line in. set for VOX operation, mic and Line set on. USB is the mode. Radio will not key up even though the computer is generating the audio to it. It should not require any other controls should it? I've tried different levels from the computer line out, still doesn't key. I've cranked the Mic gain both directions, still doesn't key up. What is it that i'm not doing right?
Been some good propagation on 6 with numerous JT65 signals and i'd like to participate with these two modes. Larry W0OGH back on the list again ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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> USB is the mode. Use DATA A - set audio input to Line IN once you have selected DATA A, then adjust VOX gain to trip when the JT65 audio is being generated. You will have better results if you use a serial port or USB to serial converter with a single transistor driver on the RTS line for PTT as teh JT65 software switches the transmitter "on" one second before the tones start to avoid clipping the initial tones or hot switching any amplifier/preamplifier relays. 73, ... Joe, W4TV On 7/19/2012 3:50 PM, [hidden email] wrote: > I have been wanting to try the JT65 and other modes on 6 meters. > Thought it would be a simple setup but its not working. Good audio > coming from the computer Line out and going to the K3 Line in. set > for VOX operation, mic and Line set on. USB is the mode. Radio will > not key up even though the computer is generating the audio to it. > It should not require any other controls should it? I've tried > different levels from the computer line out, still doesn't key. I've > cranked the Mic gain both directions, still doesn't key up. What is > it that i'm not doing right? > > Been some good propagation on 6 with numerous JT65 signals and i'd > like to participate with these two modes. > > Larry W0OGH > > back on the list again > ______________________________________________________________ > Elecraft mailing list Home: > http://mailman.qth.net/mailman/listinfo/elecraft Help: > http://mailman.qth.net/mmfaq.htm Post: > mailto:[hidden email] > > 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:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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On 7/19/2012 1:24 PM, Joe Subich, W4TV wrote:
> You will have better results if you use a serial port or USB to serial > converter with a single transistor driver on the RTS line for PTT as > teh JT65 software switches the transmitter "on" one second before the > tones start to avoid clipping the initial tones or hot switching any > amplifier/preamplifier relays. Joe, Doesn't the K3's TXDELAY setting take care of that? I'm SURE that it does for the power amp, and I'd be very surprised if it wasn't also implemented to protect its own relays. 73, Jim K9YC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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Hello Jim,
Most of us EME types have sequencers, external preamps, and numerous old coaxial relays. While the TX delay built into the K3 may be fine for its own switching, and even for modern QSK amplifiers, there is a great amount of relief knowing that WSJT will switch everything well ahead of the start of its full power, all-out, RF transmit cycle ;-) VY 73, Lance On 7/19/2012 9:20 PM, Jim Brown wrote: > On 7/19/2012 1:24 PM, Joe Subich, W4TV wrote: >> You will have better results if you use a serial port or USB to serial >> converter with a single transistor driver on the RTS line for PTT as >> teh JT65 software switches the transmitter "on" one second before the >> tones start to avoid clipping the initial tones or hot switching any >> amplifier/preamplifier relays. > Joe, > > Doesn't the K3's TXDELAY setting take care of that? I'm SURE that it > does for the power amp, and I'd be very surprised if it wasn't also > implemented to protect its own relays. > > 73, Jim K9YC > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > -- Lance Collister, W7GJ (ex WA3GPL, WA1JXN, WA1JXN/C6A, ZF2OC/ZF8, E51SIX, 3D2LR, 5W0GJ) P.O. Box 73 Frenchtown, MT 59834-0073 USA TEL: (406) 626-5728 QTH: DN27ub URL: http://www.bigskyspaces.com/w7gj Windows Messenger: [hidden email] Skype: lanceW7GJ 2m DXCC #11/6m DXCC #815 Interested in 6m EME? Ask me about subscribing to the Magic Band EME email group, or just fill in the request box at the bottom of my web page (above)! ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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On 7/19/2012 3:38 PM, Lance Collister, W7GJ wrote:
> Most of us EME types have sequencers, external preamps, and numerous > old coaxial relays. Understood why YOU need the delay in your application, but 99% of us using digital modes, even JT65, are not doing stuff like that. I think it's important not to make things more complicated than they need to be, and simple VOX works just fine for most stations. 73, Jim K9YC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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Jim Brown wrote:
>On 7/19/2012 3:38 PM, Lance Collister, W7GJ wrote: >> Most of us EME types have sequencers, external preamps, and numerous >> old coaxial relays. > >Understood why YOU need the delay in your application, but 99% of us >using digital modes, even JT65, are not doing stuff like that. I think >it's important not to make things more complicated than they need to be, >and simple VOX works just fine for most stations. > "99% of us" is far too sweeping. MANY users of JT modes on VHF - not just on EME, but almost ALL *serious* users - are also using external preamps, power amplifiers and relatively slow coaxial relays which do require an external sequencer. That may be less true at 50MHz, where HF and VHF/UHF techniques overlap, but the use of external sequencers is far too important to be swept away. -- 73 from Ian GM3SEK http://www.ifwtech.co.uk/g3sek ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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In reply to this post by telegrapher
On 7/19/12 at 12:50, [hidden email] wrote:
>I have been wanting to try the JT65 and other modes on 6 >meters. Thought it would be a simple setup but its not >working. Good audio coming from the computer Line out and >going to the K3 Line in. set for VOX operation, mic and Line >set on. USB is the mode. Radio will not key up even though >the computer is generating the audio to it. It sounds like the audio is not getting into your K3. Try checking the settings of: MAIN MENU: MIC SEL MIC+LIN CONFIG MENU: TX GATE MIC gain knob I think DATA MD set to DATA A will work better than SSB GL 73 de Bill, AE6JV ----------------------------------------------------------------------- Bill Frantz | I like the farmers' market | Periwinkle (408)356-8506 | because I can get fruits and | 16345 Englewood Ave www.pwpconsult.com | vegetables without stickers. | Los Gatos, CA 95032 ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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