Harry, NK9R writes:
> Note for older 422 Centurion amp owners: Using an older Centurion with
the
> newest Ten-Tec HF transceivers - Pegasus, Jupiter, and Orion - may require
a
> small modification to the QSK board in older Centurion amps for proper QSK
> CW keying. Short diode D2 (red diode, 1N4148, next to Q1) with a jumper
> wire. The current 422B does not require this modification.
This is very interesting indeed. Apparantly there are some subtle
differences in the ANT1 and ANT2 QSK keying loops on my new ORION. The
symptoms were, my Centurion worked fine in the QSK mode using ANT2 and its
QSK loop, but when I tried to run the Centurion on ANT1 and its QSK loop,
the Centurion would go into transmit but the ORION would not. I went ahead
and removed D2 as above and replaced it with a jumper, and now the ORION and
Centurion make happy QSK on ANT1 and the ANT1 QSK loop as well. So Harry,
thanks and stop by for coffee next time you're in central Texas!
73, John
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