[GreenKeys] Baud to ASCII conversion hint

[Jack]

I forgot to mention that a "standard" RTTY converter can be used for
the front
end of the PK, bypasing the PK's tone filters.
The Dovetron is a good choice because the tones can be easily
"tuned", a little easier than the ST8000 or ST8000A. This requires
cabling the
TU into the PK.

A simpler method would be to use the RTTY TU in the standard manner
and
adjust the TU's AFSK output to match the PK's input tones/shift. Send
the
AFSK into the PK's audio input, paying attention to the levels. In
this
setup, the TU copies the signal and repeats it out with the AFSK to
the PK. This application is where the ST8000/8000A is most versatile.






-----Original Message-----
From: greenkeys-bounces at mailman.qth.net
[mailto:greenkeys-bounces at mailman.qth.net] On Behalf Of Dino Papas
Sent: Sunday, December 19, 2010 8:09 AM
To: greenkeys at mailman.qth.net
Subject: Re: [GreenKeys] Baud to ASCII conversion hint

And if anyone wants to fine tune their PK-232 to 170Hz shift see:

http://www.qsl.net/k0bx/

and click on the "PK-232 Alignment" tab.  Site also has the procedure
for using the ST-8000 as a front end for the PK-232 (works well, done
for both of my ST-8K's).

Dino KL0S

On 19Dec2010, at 6:51 AM, Jeffrey Angus wrote:

> On 12/18/2010 5:58 PM, Jack wrote
>> The input to the PK is audio, standard RTTY tones.
> According to the PK232 manual, their idea of standard is 200 Hz
shift.
> 
>
<http://www.repeater-builder.com/aea/pk232/pk232mbx-operating-manual.p
df>
> 
> Back in the '80s it was always immediately apparent on the ST-6000
> what the other person was running for a terminal unit. If it was a
> "real" unit, the shift was a nice 90 degree pattern. If they were
running a
> KAM or PK232 the shift was always wrong. I.e., 200 Hz instead of 170
Hz.
> 
> *Grins* Of course, with the ST-8000 you could always adjust things
to
> accommodate weird shifts.
> 
> Jeff-1.0
> wa6fwi
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