[Kenwood] TS-950SDX and Computer Interface

[Larry Dajnowski]

Using a TS-950SDX and either a 
Kenwood IF-232C or LCU-3K
computer interface for rig control
and spotting purposes.

When either of those interfaces
are connected to the SDX
via the backpanel DIN port
I have the following symptoms
in CW and SSB even when running
only 16 watts (minimum power)
to a dummy load.

CW:  When key down and monitor on
every time the computer polls the radio
the Key Down tone goes intermittent.

SSB: When speaking into the Mic
when normal Mic Gain and no
compression and monitor on;
the audio is distorted and sounds
like I am speaking under water.

Disconnecting the DIN plug from
the back of the SDX using either
interface stops the problems
mentioned above.

Any ideas would be appreciated.

73, Larry AJ2W