I have had some similar problems with an MP and a 930. Top Ten alleged
some kind of low impedance problem on the 930 mic input circuit. I
ended up installing a switch between the Top Ten cable and the 930 mic
connector that switches a small resistor across the mic line. I
experimented to find a suitable value. In one position I have
ear-splitting, rig-keying feedback on SSB and in the other position I
have a continuous background tone on CW. It is not very satisfying but
it works in single-mode contests. I don't do many multi-mode contests
(The great CA QSO Party is a notable exception.) so I'm living with
it. This may not be the problem you are experiencing at all, though.
I think the DXD should have opto-isolators on keying and PTT lines and
buffers on the mic lines. I've considered doing this myself but
haven't got a Round Tuit. Surprisingly, I've had no problems with the
audio lines.
/Rick N6XI
On 7/19/05, Bill Brown <ukbrown@acsol.net> wrote:
> Congrats to Rick N6XI on getting his setup going. But I am still having this
> one remaining problem with my WL and DXD. The S02R has a problem on the
> FT1000D side. If I have the mic hooked to the FT1000D via the cable supplied
> from Top Ten and we have tried a new cable. I cant get the rig to send cw
> via the computer. If I unplug the mic cable from the FT1000D it sends cw
> perfectly. Now when I say it wont send cw thats is correct. It will key the
> rig but not send cwIf I unplug the mic cable everything works perfect. Has
> anyone else had that problem. This is the last remaining problem with WL and
> DXD except getting the stubs selection set up and that is next. LMK PTL God
> Bless, from bill brown k0uk
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