[TenTec] Paragon FSK keying?

[Robert Weingaertner]

Hi Tim,

I found that my Paragon I needed a pullup resistor for use with
a Kantronics KAM. The KAM FSK outout is an "open collector" and
the Paragon needs 0 to -15 V for mark and +2.5 to +15 V for space.
I wired the AUX 12 V jack through a series resistor and a short
piece of wire to the mark/space plug on the back. This was done
externally so that when I plug in the FSK line from the TNC, I alos plug
the pull up line into the 12 V jack. I used a 16 K resistor bwecause it
was handy, but anything from 10 K to 22 K should work.

             73,     Bob WB2VUF

Tim Cook wrote:
> 
> I am going to be setting up my Paragon and PK-232 for the digital modes here
> soon, and I seem to recall from doing this years ago, there might be a mod
> needed to the Paragon's mark/space input.  I can't seem to find anything in
> the manual for the radio or the pk-232.  Does anyone recall this mod? I
> think it had to do with putting in a 'pullup" resistor on the input
> jack??????
> Thanks
> Tim
> NZ8J
> 
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