Greg wrote:



From: "Ralph Mowery"
Organization: EarthLink Inc. -- http://www.EarthLink.net
Newsgroups:
rec.radio.shortwave,rec.radio.amateur.digital.misc ,rec.ham-radio
Date: Sat, 12 Feb 2005 13:08:16 GMT Subject: Rtty Protocol

Most hams are received in the LSB mode. Comercial statisons
usually are received in the USB mode or the reversed mark/space
relationship. Also the speed (baud rate) and shift are usually
differant than the normal ham 45 baud (60 wpm) and 170 Hz shift.



"B.R. Smith" wrote in message
...
I am using Ham Scope and Mmtty to decode RTTY with my sound card.
It works fine for hame radio operators but I have found RTTY on
non-ham frquencies and all I get is garbage. For example, there
is an RTTY signal at approximately 2.042 MHZ at 1100 UTC on the
West Coast and all that displays is random characters. I suspect
it has something to do with the protocol or baud rate settings.
Anyone know what they might be? Not sure if this is maritime
station or not. Thanks.


Okay, I have some questions about RTTY:

1. What unencrypted RTTY traffic is out there besides hams?

2. What sort of encoder would I need to read RTTY with my NRD-525
and what do I need to know to get it functioning?

3. My receiver has an RTTY mode. What exactly does that do in my
receiver? Couldn't I just use USB or LSB?

Thanks,

Greg

there used to be press services on RTTY.

"ryan wiehle" wrote in message
...
Greg wrote:

there used to be press services on RTTY.

The last non-ham RTTY station I remember receiving was a news service for
North Korea, years ago.

I had a PK-232 TNC, with it's SIAM ( signal identification ) mode that would
sniff out the parameters on a mystery signal and attempt to display it for
you. It worked pretty well, I thought, decoding oddball digital stuff more
often than I expected it to.

It was strange to see outdated old Soviet propaganda phrases about
"imperialist capitalist dogs" and about how the standard of living in North
Korea had gotten so good that they were having to turn Americans immigrants
away from the border, seeking asylum.

I've looked for - but not found - anything quite so funny and tragic at the
same time as that RTTY news service from "the people's democratic republic
of Korea" or whatever it was called back then. - It's been a while, I can't
remember for sure.


Charles Brabham, N5PVL

Director: USPacket http://www.uspacket.org
Admin: HamBlog.Com http://www.hamblog.com
Weblog: http://www.hamblog.com/blog_n5pvl.php

You can read that same good ol' commie propaganda online at
http://www.kcna.co.jp/ .


--
Tom Sevart N2UHC
Frontenac, KS
http://www.geocities.com/n2uhc