Bill: If I had to take a guess, I would be looking at the roofing filters.
They are in the RX chain, but after the point where the sweep takes its
signal. Everything appears to be fine up to that point. Check over the
entire range of bandwidths to see if it's a single filter. If it's bad at
all bandwidths, then the problem could be in the A5 board, perhaps FL5 or
FL1 or any circuits associated with them. It could also be in the A7 logic
board, but I would tend to discount that if the transmit works OK.
----- Original Message -----
From: "bill ogden" <firstname.lastname@example.org>
Sent: Friday, June 26, 2009 9:45 AM
Subject: [TenTec] Orion-1 problem
>I had many suggestions to reseat the cables. I did this, including a
>slight twist on all the small coax cables on the top chassis, the bottom
>chassis, and the front panel. Also tried flexing the panel (just a little
>bit). Absolutely no reaction.
> Sub receiver works well. Main receiver acts as if no antenna is attached,
> BUT the sweep (with the latest beta firmware) indicates normal signals so
> signals must be entering the main receiver. Transmitter is OK. (Problem
> started before installing the latest firmware, so that is not the
> Master reset did not solve the problem, either.
> Bill - W2WO
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