[TenTec] RF

[Jim Miller WB5OXQ]

I wonder if you have a grounding problem.  I run sstv using my omni6+
connected to my pc and no problems even with the amplifier on running 500
watts.  I use home a home brew keying device connected to a serial port on
the pc with 1 transistor and 2 resistors to the key jack.  Never had any
problems.  I have used a cw keyboard and psk32 using the same stuff with no
problems even with the centurion driven near max output.  You must have rf
floating in the shack somehow.  i do not have any kind of rf blocking
devices on my cables either.
----- Original Message -----
From: "George Allgood" <w4gfa at bellsouth.net>
To: <TenTec at contesting.com>
Sent: Friday, September 10, 2004 4:14 PM
Subject: [TenTec] RF


> I'm having RF attacks.  My OMNI VI+ with computer wired to the Key jack
swamps when I strike a key on the keyboard.
> The problem goes away if I reduce power on the OMNI to about one half.
It's a problem trying to use contest programs
> to key the rig.    Anyone have a source for high quality, shielded cables
and connectors for this purpose?
> I've placed  Ferrite cores on each end of the existing home brew cable,
but no cigar.  Any suggestions would be most
> welcome.
> George W4GFA
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