[amsat-bb] Re: CP6 received at last...

George Henry ka3hsw at att.net
Tue May 26 16:01:20 PDT 2009

The frequency update rate depends on the update interval you select under 
the CAT menu.  Note that the interval is the frequency change, not a time 

There are 2 separate tuning interval options you can select:  one for SSB/CW 
signals, and one for FM signals.  Typically, a tuning interval of 100Hz is 
fine for CW and SSB signals, while the FM interval should be set according 
to the capabilities of your radio and the actual mode of operation.  600 Hz 
should be fine for FM voice, while a smaller interval might be desireable 
for packet.

Regardless of the interval you choose, updates will happen faster near the 
center of a pass....

George, KA3HSW

----- Original Message ----- 
From: "Shamai "SAM" Opfer" <4z1ws.sam at gmail.com>
To: <amsat-bb at amsat.org>
Sent: Tuesday, May 26, 2009 11:55 AM
Subject: [amsat-bb] CP6 received at last...

> Hi all,
> Finally succeeded to copy and record CP6 CW beacon.
> The digital mode sounds difficult to inercept, as it is very short,
> imediately following the CW transmission, and appears only every 30
> seconds,which i think makes it impossible to manually tune on the SSB
> signal.
> In addition, when using SatPC auto Doppler compensation (programming the
> IC910H via CAT), the received frequency "jumps"every 1 second.  As far as 
> I
> remember, this rate can not be changed.  I guess that updating the
> transceiver every 100mS would make the audio pitch much more constant and
> smooth.
> I will try later on to activate CalPoly's parsing software.  (Tips are
> welcome... :-)
> thanks!
> 73
> Shamai,
> 4Z1WS
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