From: Jason Flynn G7OCD <jason.flynn@btinternet.com>
To: g4klx@qsl.net
Cc: Tomi Manninen OH2BNS <tpm@prkele.tky.hut.fi>, linux-hams@vger.kernel.org
Subject: Re: JT44 on Linux
Date: Fri, 16 Aug 2002 07:27:44 +0100 [thread overview]
Message-ID: <3D5C9B60.4000405@btinternet.com> (raw)
In-Reply-To: 02081415053208.00798@g4klx
> I have a friend who has JT44 receive capability who is over a
> variable 250kms 23cms path which would be an interesting test.
We've been doing similar tests here, trying all the 'new' data
and weak signal modes. They're designed for EME or MS etc, and
don't cope very well with scintilations introduded by long
atmospheric distortion. They work, but if you do a waterfall,
you can see the signal spread is at least one tone wide so a
system for tropo would probably work better with less tones.
So we're thinking about a new system specifically for tropo
contacts, your ideas would be appreciated...
Jason
next prev parent reply other threads:[~2002-08-16 6:27 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-08-14 8:55 JT44 on Linux Jonathan Naylor
2002-08-14 11:57 ` Bob Nielsen
2002-08-14 12:24 ` Tomi Manninen OH2BNS
2002-08-14 13:05 ` Jonathan Naylor
2002-08-16 6:27 ` Jason Flynn G7OCD [this message]
2002-08-16 7:13 ` Jonathan Naylor
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