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Message-ID: <5.1.0.14.0.20020122153052.00aa9420@gemini.herts.ac.uk>
Date: Tue, 22 Jan 2002 16:01:59 +0000
To: rsgb_lf_group@blacksheep.org
From: "James Moritz" <j.r.moritz@herts.ac.uk>
Subject: LF: Jason Tests / PSK31
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Dear LF Group,

I successfully tested Jason 0.92 with 1.2kW TX out last night (If anyone 
was listening, at around 0400 - don't ask!). So I will give it a go tonight 
if anyone is interested. I will try and catch IK2DED on 137.52 - otherwise 
I'll try 137.510kHz. The frequency seems to be accurate within 1Hz or so, 
although it is a bit hard to tell. The waterfall display looks a lot 
clearer in the latest version, and the USB/LSB options checked out fb as well.

If any of the North American guys would like to try for trans-atlantic 
Jason reception, I could run a beacon signal for a few hours around 
midnight - frequency perhaps 135.910 (4Hz BW). Let me know if this is of 
any interest, and whether this frequency is any good at your end.

BTW, I think I asked before, but don't recall any responses - can anyone 
recommend PSK31 software that has the TX phase keying signal available as a 
logic level output? Since my TX will generate BPSK with appropriate 
envelope shaping I would like to try this mode; but a sound card output 
would be a bit messy - demodulate the audio signal, recover the phase data, 
feed into LF TX modulator... a bit of wire would be so much easier!

Cheers, Jim Moritz
73 de M0BMU