[GreenKeys] heath sb-101 rtty

[tony.podrasky]

GE OMs;


I ran an SB-101 for YEARS on RTTY and never had a problem.

o Put a cooling fan over the finals.

o Put a cooling fan over the power supply.

o Tune up for full power and then back the power down just a bit.

o If using AFSK, don't overdrive it.

o Irv Hoff told me a trick for running AFSK (and this is a bit
   sketchy): If you replace the USB crystal with a LSB crystal,
   the center of bandwidth will be perfect for normal 2125/2295 tones.
   I unsoldered the USB crystal, drilling a hole in either the
   circuit board or the chassis, and mounted a SPDT mini-toggle switch.
   To switch to RTTY/USB all I had to do was open the cover and
   flip the switch.

UE,
W6ESE - tony
NNNN
ZCZC


On 06/26/2013 04:11 PM, COURYHOUSE at aol.com wrote:
> we were brought a  heath sb-101 has  PS  and looks clean   will test...
> we have  been wanting to  set up a HF  rig   for demo
> best way  to set this up for rtty demo station?
> need to  find  manual online
> any   data ideas  stories  appreciated
> Ed# www.smnecc.org <http://www.smnecc.org>
>
>
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-- 
Tony J. Podrasky | Imbesi's Law:
                  |   In order for something to become clean,
                  |   something else must become dirty;
                  |   But - you can get everything dirty
                  |   without getting anything clean.