Hi... The PTT feature quite working on my K2/100. I've checked the circuit up to U1 on the SSB Adapter and it appears OK. In receive, pin 6 has approximately 6 volts on it and with PTT activated on the microphone, it drops to zero. However, no relays click and no RF out appears in the display. The rig continues to receive any signal it is tuned to but I can hear my own audio over that signal if I talk into the Mic. So, I conclude the SSB Adapter is processing the audio signal from the mic, but where do I check next to see why it isn't triggering the transmitter? Any ideas appreciated. BTW, "Tune" works fine with output matching whatever level the display is showing. Ron W0LPZ ______________________________________________________________ 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 |
Is is possible the output power is set to zero? Is the rig set to CW-TEST mode?
Mark AD5SS On Sun, May 2, 2010 at 3:21 PM, RONALD R FREEMAN <[hidden email]> wrote: > > Hi... > > The PTT feature quite working on my K2/100. I've checked the circuit up to U1 on the SSB Adapter and it appears OK. In receive, pin 6 has approximately 6 volts on it and with PTT activated on the microphone, it drops to zero. However, no relays click and no RF out appears in the display. The rig continues to receive any signal it is tuned to but I can hear my own audio over that signal if I talk into the Mic. So, I conclude the SSB Adapter is processing the audio signal from the mic, but where do I check next to see why it isn't triggering the transmitter? Any ideas appreciated. BTW, "Tune" works fine with output matching whatever level the display is showing. > > Ron W0LPZ ______________________________________________________________ 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 |
In reply to this post by RONALD R FREEMAN
Ron,
Because you can hear your own audio when you talk into the mic, I suspect that you could have the K2 menu set to SSBA bAL - it will do exactly that with the menu setting, it feeds part of the signal back into the receiver. It is usually used for nulling the carrier balance. Also check to see if the display "L" or "U" is blinking - if so, you have inadvertently set the K2 to VOX - Hold the VOX button several times until you see Ptt in the display. If neither of those conditions exist, then please tell us and ask again. 73, Don W3FPR RONALD R FREEMAN wrote: > Hi... > > The PTT feature quite working on my K2/100. I've checked the circuit up to U1 on the SSB Adapter and it appears OK. In receive, pin 6 has approximately 6 volts on it and with PTT activated on the microphone, it drops to zero. However, no relays click and no RF out appears in the display. The rig continues to receive any signal it is tuned to but I can hear my own audio over that signal if I talk into the Mic. So, I conclude the SSB Adapter is processing the audio signal from the mic, but where do I check next to see why it isn't triggering the transmitter? Any ideas appreciated. BTW, "Tune" works fine with output matching whatever level the display is showing. > > Ron W0LPZ > > ______________________________________________________________ > 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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