I have a KSB2 and MH2 that I just completed as well. I got a report of
"low audio" from my one SSB contact so far, F5PFP in Lyons, France, and
the vox seems hard to trigger. I was running my K5OOR amp on 17m, so
somewhere between 25 and 40W expected output, though I don't have a PEP
meter (yet) so I don't know for real.
I am unsure of how to make sense of a report of "low audio" on SSB--how
is that different from "low power?" I had the mic gain set at 3 and the
compresion at 3:1.
I noticed the current draw was 0.24-0.26A before and 0.40 after, so I
removed the KSB2 board and checked and cleaned it, but no change. Then
I slide some paper between the RFCs and the filter XTALs and the draw
went down to 0.28, all according to the internal meter. I removed the
paper and still about the same. So I dunno.
The vox is not very sensitive, and almost impossible to trigger with the
10dB attenuator (SSBa 1) in place, and difficult with SSBa 3, though I
haven't tried Vox again since my paper trick.
I will try it again...I almost called Art Bell on 75M on Saturday night
to ask for a mic check but he then said he was going QRT to do his
show...
Leigh WA5ZNU
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