KSB2 and SSBA settings?

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KSB2 and SSBA settings?

Tom Arntzen
Hi all!
I just read through the mails from Brian and the answers (low ssb output).
In one mail it said that SSBA should be sett to 3.
As I can remember from assembly there is no differense in setting 2 and 3.
Is there any changes here that has been done in firmware or to the KSB2 itself the last months?

Tom LA1PHA
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Re: KSB2 and SSBA settings?

Leigh L. Klotz Jr WA5ZNU
Administrator
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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