I have been enjoying a new Corsair II and have just recently re-built the PTO
and it is now smooth as silk, it even approaches my FT-1000MP VFO in terms of
smoothness.
I have noticed that the Corsair II has noticeably more background noise than my
Omni-D has and I began looking around for the source of it. It appears that it
is coming from the PBT board since. When I disconnect the ouput of the PBT
board which goes to the IF board it quites down very well. Of cousre some
background noise is to be expected and all of my comments relate to no antenna
connected. When I disconnect the input to the PBT board it also has a small
drop in background noise, but no where near as dramatic as when I disconnect
the PBT board from the IF stage. It appears to me that the noise source is
really the PBT board.
So the question is does any know of any historical problems with noisey PBT
boards or what could be causing this. As you know the PBT board has two mixers
on it and I suspect one of those is the culprit since they can be noisey at
times..
Steve NU0P
_______________________________________________
TenTec mailing list
TenTec@contesting.com
http://lists.contesting.com/mailman/listinfo/tentec
|