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[TenTec] SSB distortion from TNC

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Subject: [TenTec] SSB distortion from TNC
From: milewski@OREGON.UOREGON.EDU (Steve Milewski)
Date: Mon, 24 Feb 1997 15:59:47 -0800
Perhaps someone can give me an idea of how to fix this problem, or at least
tell me why it is happening.

I have a KAMPlus TNC plugged into the rear panel of my Omni VI. I access
the TNC for RTTY via the FSK button on the front panel.

If I do any SSB transmission with the TNC plugged into the jacks but
powered off, I receive reports telling me that my audio is severely

The Omni VI manual says that the FSK is wired in with the SSB circuit. I
can understand that there might be a problem if the TNC were turned on and
had power to it while I was operating SSB.

However, this problem occurs merely because the TNC is plugged into the
audio out and mark/space jacks. The power is turned off.

Any ideas would be appreciated because it is extremely inconvenient to
access the rear panel anytime I want to change operation between SSB or

Thank you and 73,

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