[amsat-bb] Re: Fwd: 910/1.2ghz/sequencer

Mark L. Hammond marklhammond at gmail.com
Sat Jan 23 13:10:33 PST 2010

I don't know if this is applicable or not--but---

1) Do you have anything connected to pin 1 of the ACC socket?

Keep in mind that if the audio level on pin 1 is "too high" the PTT doesn't work.  This is readily evident when using a TNC where the audio level is too high; the TNC tries to PTT, but the rig won't key.

2) A different thought---maybe the microphone audio is muted when the rear ACC socket is keyed.  That is common so as to keep from having a "hot mic" when transmitting via a TNC.


Mark N8MH 

At 07:17 AM 1/24/2010 +1100, Tim Tuck wrote:
>Hi Bob,
>Pin 3 can not be set to only tx on a specific mode BUT it can be set to 
>only tx for a specific band. ( Page 58 of the manual ) I've been right 
>throught the service manual and I cant see any way that your rig would 
>do what it does. My suspicion is that the CPU has tied itself in knots 
>for some reason, thus you might like to do a factory reset of your rig. 
>( page 18 or page 77 of the user manual )
>If you do a reset you will loose all your memories and settings.
>I know pin 3 works for all modes since I use it with a buxxcom interface 
>for FSK441 for meteor scatter on 2m USB
>VK2XTT :: QF56if :: BMARC :: WIA :: AMSAT-VK :: AMSAT


I am trying to set up my 910/sequencer/amp.  Checking things out before hard 
wiring everything I discovered when grounding pin 3 of the acc socket the radio 
does go to xmit, and will do cw, Â however to send ssb the ptt on the mic has 
to be pushed.  At times I use a Heil head set that has no PTT and I simply 
push the xmit on the radio.  Do I have to pick off the PTT at the mic 
connector?  I am probably overlooking something obvious.  What do you 910 
experts have to say. 

As always, thankyou 

73 Bob W7LRD 

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Mark L. Hammond  [N8MH]

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