[amsat-bb] AO-85 Verry bummed out

Burns Fisher burns at fisher.cc
Sat Oct 10 14:59:38 UTC 2015

Your description sounds like you caught Fox-1a in high speed data mode.  We
are still doing some commissioning so expect mode switches without
necessarily hearing any warning.  If it sounds like "an old fashioned
acoustic coupler"  (and if you are old enough to know what that sounds like
:-) try switching FoxTlm to high speed mode.  For high speed mode you have
to be especially careful that there is no LOW PASS filter in the path.  You
need 10KHz or more audio band pass. (For low speed you need to be able to
hear down to 20-ish Hz.)


Burns W2BFJ

On 10/9/2015 19:56, Mvivona via AMSAT-BB wrote:

> Very bummed out.
> So, just has a direct overhead pass. Still not able to decode any data.
> What was that wide banded high-pitched tone? The tone lasted almost a
> whole pass without a break. At first I did hear what sounded like a QSO,
> but almost impossible to understand. Anyone else having the same experience?
> Michael - KC4ZVA
> AMSAT member
> Sent from my iPad

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