In all my experiences with FT-736r's one had to modify the radio and tap off
the rcvr and xmiter boards for 9600. Got one right in front of me. The digital
port still has some circuitry in it. This mod is available at many sites and is
easy to do. I have use mine with a DSP-2232 and Data Engine.
That's not really an option for me, as the FT-736R is on loan and i was
pursuing this is it had been described in the manual as digital ready
(or something like that). I own an FT-5100, which i am not afraid to
modify given a sufficiently clear description of the mod.
I have added a couple of features as well. The first was an isolation
transformer for the xmit/rcv audio pairs (near the tnc) and the second
was a mini stereo jack on the rear of the FT-736r for the "tapped"
pairs.
It's too bad that Yaesu didn't do that instead of what they did do. The
4-5 KHz cutoff sounds pretty consistent with what you're suggesting, and
now i'm thinking it's more likely the receiver's fault than the sound card.
But i'm still interesting in hearing other people's ideas. It would be nice
to figure something out in the next two weeks, in time for the launch of
JAWSAT, ASUSAT, etc.
-- KD6PAG (Networking Old-Timer, satellite QRPer)
