[Elecraft] RTTY Operations

[Martin AC6RM]

Julian;

   It's been a while, but I was doing RTTY through a TNC -- Kantronics
KAM+.  That unit provides the ability to move the frequencies around a
bit.  Anyone who has been doing RTTY for a while will probably be doing
it through a TNC; it's only the last few years that soundcard RTTY has
gotten really popular.

   One'll run in to the same issue on all the TOR modes as well (PACTOR,
GTOR, etc.).  From what I can see, it is going to be far easier to futz
with the K2's filters in RTTY mode than mess with the standard settings
of the TNC.

   TNCs are fun.  I can use my HP200LX (80186 with 640k of operating RAM)
and KaGOLD on a PC powered by two AA batteries.  And PACTOR actually
rocks -- BBS and email access from, err, ANYWHERE!  I haven't set up my
K2 for the TOR modes yet; I'm watching this thread with some interest,
because there's nothing in the categorized archives on the subject that
I could find.

   If you want more info on the use of the 200LX with packet/digi, I put
together some web pages several years ago.  It's been a while and some
of the links are broke, but the one to the palmtop paper (thaddeus)
still works and there are pix on the thaddeus site.  Here's the link to
my old pages:  http://www.ac6rm.net/First.htm

   73, Martin AC6RM

> Am I missing something here? I've worked RTTY using my normal data mode
> filters which are centered on 1200Hz. It doesn't matter what the
> frequency  is, any more than it does for any other data mode. If you're
> using MixW,  you can just see the RTTY signal in the waterfall and click
> the cursor on  it, just like in PSK.
>
> I'm not quite sure why RTTY specifies the tone frequencies, though
> presumably in older radios where the FSK is produced in the transceiver
> by  keying the hardware, the actual shift from the BFO frequency was set
> up for  that amount.
>
> 73,
> --
> Julian, G4ILO. (RSGB, ARRL, G-QRP, K2 #392)
> G4ILO's Shack: http://www.qsl.net/g4ilo

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