[TenTec] re Orion popping

[Rob Atkinson, K5UJ]

I hope this will help:  on my omni vi, there used to be a spike on SSB tx 
when I'd hit the PTT switch, and a tiny one on release.  it was probably 
there on vox too, but more hidden since the tx is voice actuated so the rig 
is immeditately (in human time frame) putting out a voice sideband.  I could 
really see it by simply keying the rig and not saying anything, or 
disconnecting the mic entirely, and looking at the f.p. watt meter and the 
one in-line.  it looked like it was spiking up to around 75 w. and 15 w. on 
release.  it was okay to some extent only because I was driving a cathode 
driven amp but I wanted it fixed just the same in case I would someday drive 
a screen driven amp, and amp or no amp, it was undesirable.  anyway, it 
turned out to be a matter of touching up the bal. mod. pots r3 and r4 to get 
into the carrier null a bit better.  the spikes were caused by the null not 
kicking in right away.  don't know why there was one on release of the PTT 
sw.

Rob Atkinson/K5UJ

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