[Lf] PSK31 for Satellites]

[Andre' Kesteloot]

Moe Wheatley wrote:

> Posted on AMSAT-BB list:
>
> I placed a new version(2.09) of WinPSK(a PSK31 program) on my site
> (http://www.qsl.net/ae4jy/)
> that has a much faster tracking AFC mode and also is full duplex. Your sound
> card will have to support full duplex operation.  You will have a big
> advantage over the HF guys because you will be able to "see" your own signal
> and adjust your xmitter audio input for best IMD.  Can also do manual power
> control by watching signal S/N.
> In the "General Setup" menu, just check the Satellite mode box and that
> should do it.  It seems to work up to about 20Hz/sec but is beginning to
> loose some sensitivity at low S/N. That may be enough to work up into the
> 70cm band or so.  QPSK doesn't track well for some reason so only use BPSK
> for now.
> Let me know if this works at all since i don't have a satellite station and
> could only simulate.
> Best to contact me direct email ae4jy at qsl.net since i may not be monitoring
> the amsat list much longer.
>
> Good luck to the AO-40 team
> 73's
> Moe, ae4jy
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