I did that some years ago. One has to be extremely careful so as to avoid
any ground loops or any noise on the Audio In line from the PK-232. Seems
that I did construct a 20 dB attenuator to operate between the PK-232 output
and the Audio In of the radio. This attenuator was physically at the
connector that plugged into the radio. This kept the signal to noise ratio
much higher on the cable between the PK-232 and the radio. I did not find
any issues with the SSB audio. However, BE SURE that the mike is not hot or
on otherwise any noise in the room will also be transmitted.
Without my manual in front of me, I recall the Audio In is only isolated by
a 10K series resistor which feeds the MIC input circuit.. In effect the MIC
input and the Audio In are "hot" or active all the time.
73
Bob, K4TAX
----- Original Message -----
From: "Tim & Darlene Isom" <nannypoo@mnmars.org>
To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
Sent: Saturday, July 07, 2012 1:28 PM
Subject: [TenTec] PK232 and Paragon 585
Anyone out there using the Audio in, Audio out, and PTT on the paragon's
rear
panel hooked to a PK232?
If so, having any issues during normal SSB operation with the audio in
plug
remaining plugged in?
Can reply to me directly at wd9hdq@arrl.net
Thanks.
Tim, WD9HDQ
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