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Re: PSK 31 Trial

 Took the day off to get ready for Dayton trip and noticed that AO-51 was in 
PSK-31 mode. I don't run much PSK31 used to while hotel room portable with 
an 817 so I was a little rusty. Last time I ran it on a sat was on AO-40! 
Maybe my saved soundcard settings need tweaking. Ah, no one magically showed 
up before the pass to help me setup. Any way enough excuses, I did manage to 
get the d/l working and heard AA1YB once. I'm running WINPSKse in fulldup 
mode but was unable to detect my PSK31 d/l, I could see my CW track just 
fine. As it was a low pass, I will try setting up  terrestrially and maybe 
be able to uplink next pass. I'm glad to finally be in town to try this 
mode, Thanks. See you all next pass...

73 Jeff kb2m

----- Original Message ----- 
From: "Robert Bruninga" <bruninga@usna.edu>
To: <amsat-bb@amsat.org>; <jvanmetr@netpluscom.com>
Sent: Wednesday, May 18, 2005 8:37 AM
Subject: Re: [amsat-bb] PSK 31 Trial

> Aw shucks.  Missed another one...
> I wish there had been an announcement here
> on the BB that there was to be a PSK31 test
> on AO51...   Bob
>>>> "Jeff VanMeter" <jvanmetr@netpluscom.com> 5/17/2005 11:28:13 PM
> Hello,
> I made several calls on the PSK 31 mode tonight.  I was running full
> duplex
> with two computers.  I was using the program TrueTTY.  Saw one other
> signal,
> but could not identify source.  I was able to get my call though just
> in
> pieces and grid locator using full duiplex.  I tried to manually adjust
> the
> dopler on the up link, but could not be persice enough.  I was also
> running
> AFC on the downlink, but that did not help a lot either.
> I wonder if it would be worth a try using RTTY 45 baud.  This should
> have
> less of a need for fine dopler correction.   I did run CW through the
> bird.
> It is a narrow band digital mode by definition and could make out the
> down
> link OK with that.
> Anyway, it was fun to try.  Maybe someone can try the RTTY mode and
> make a
> report if that is an acceptable narrow band mode???  I will not be able
> to
> try again this time as I will be at work tomorrow.  We should be able
> to get
> a couple of sigs through the bird at the same time.  Not as many as
> would be
> permissible with PSK, but maybe useful data could be exchanged.  It may
> also
> gove a chance to learn the dopler correction method better.
> Thanks for a try on an interesting mode.  Hope others had better
> success.
> Jeff
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