Help needed on K2/100

classic Classic list List threaded Threaded
3 messages Options
Reply | Threaded
Open this post in threaded view
|

Help needed on K2/100

RONALD R FREEMAN

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
Reply | Threaded
Open this post in threaded view
|

Re: Help needed on K2/100

Mark Bayern
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
Reply | Threaded
Open this post in threaded view
|

Re: Help needed on K2/100

Don Wilhelm-4
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