[TenTec] 2.031 QSK bug

[Grant Youngman]

Cute :-)  I guess you're sure it's the radio and not the amp that's doing
something hinky?

So TX OUT is spuriously pulling low even though you aren't keying the radio?
Or is getting stuck there?  Is the amp pulling the TX EN line low in
response?

Have you tried pulling the amp cable off the TX OUT line when the radio is
in that state, and verifying that the Orion is pulling the line low
continuously?

I've assumed you're using the loop with the Titan (?).  I guess the trick is
going to be figuring out at exactly what point, or what was going on, when
that happened.  It ought to be possible to just hang a suitable meter on TX
OUT and play with the radio until it pulls low and sticks there.

Grant/NQ5T

> I found my first bug in the Orion II 2.031 firmware.  I 
> noticed that the receive signals were down near zero, as if 
> the antenna was disconnected.  It was. In QSK mode (Ten Tec 
> Titan 425 with QSK), at some point the O2 signals the amp to 
> go into transmit, while the radio is still in receive.  
> Transmit is normal, but the amp never unkeys.  Going back to 
> regular PTT (setting both on amp and O2 menu) mode cures the 
> problem.  Putting the amp in standby also restores the 
> receive signal. QSK was working fine prior to the new 
> firmware. The amp is actually in transmit, and I can see the 
> normal idle current on the plate.  This happens in both SSB 
> and CW.  Tried a master reset, and no change.
>   
> Ron
> N6AHA
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