[RTTY] Another PK232MBX Issue

[k0bx at qsl.net]

Hi John, the PK-232 is factory set for 200 HZ instead
of the 170 HZ that is used for rtty.  This was so it
could be used for Packet.

I would re-align the PK-232 for 170 shift.  It is very
easy to do and the complete instructions are on my
webpage at:
http://www.qsl.net/k0bx

As far as the image or unwanted signal, that could be
many things.  Usually you are over driving the
transmitter.  Make sure the compressor is off, move
the mike gain up with the afsk input until full power
and then back off a bit until it go's down a bit.  You
could have a rig problem, but that is not likely.

Good Luck

Joe K0BX



-- John Holmes <w9ily at arrl.net> wrote:
> Hi Guys.
> I hope that somebody can give me a suggestion of a
> fix for the following
> problem.
> 
> I am using the PK-232MBX for AFSK RTTY as I can't
> use FSK with my old TR-7.
> The 232 has NOT been modified using the "4 resistor
> mod" that I believe
> improves the MBX front end.
> 
> During this past contest, I was told that I had a
> "strange" signal and that
> my offset was wrong. I asked further and was told
> that my offset was about
> 2070. There may also be an inverted image being
> produced by the unit.
> 
> Can anybody give me an idea of what can be done to
> fix these issues? 
> 
> Thanks.
> 
> John W9ILY
> 
> > _______________________________________________
> RTTY mailing list
> RTTY at contesting.com
> http://lists.contesting.com/mailman/listinfo/rtty
> 



		
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