[TenTec] PK232 and Paragon 585

[Bob McGraw - K4TAX]

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 at mnmars.org>
To: "Discussion of Ten-Tec Equipment" <tentec at 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 at arrl.net
>
> Thanks.
>
> Tim, WD9HDQ
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