[Elecraft] RTTY connection?

[Don Wilhelm]

Dohn,

Goggle on RTTY and you will find lots of links.
http://www.dxzone.com/catalog/Software/RTTY/ has a listing of several
programs that are usable for RTTY.

The soundcard/computer connections are the same as that used for PSK31, and
can be either a simple set of connections or be rather complex.
http://www.psk31.com/Hook_it_Up/hook_it_up.htm has links to several articles
dealing with the interfacing - http://www.qsl.net/wm2u/psk31.html shows
interface techniques ranging from super-simple to medium complexity.  I
recommend salvaging a couple transformers from defunct PC modems to use in
the lines to the soundcard and either a transistor or optoisolator to detect
the serial port RTS (or DTR) signal for keying the transceiver.  The
optoisolator allows the computer and transceiver grounds to be separated.

The mechanical/electrical connections between your computer, proset and the
transceiver are of your own choosing - there are many combinations that will
work, I prefer to use a switch between the soundcard interface and the
mic/headphones and I have built that into my soundcard interface box (my mic
plugs into the interface box, but that is my choice).

73,
Don W3FPR


> -----Original Message-----
>
> Is it correct to assume that you must make up two jumpers in order to
> connect RTTY?  1. One to connect audio output (from which jack?) on the K2
> to the Mic connector on the sound card, and 2.,  One from the speaker out
> connector of the sound card to the Mic jack of the K2?
>
>
>
> I have the proset headphones connected to my K2. I do not use the large ¼”
> with 1/8” adaptor for anything.  The large ¼” portion of the
> adaptor, which
> came with the 1/8” insert, seems to serve no function.  I plug
> the headphone
> jack of the headphones into the headphone jack of the K2.  That
> is the only
> way I seem to get the headphones to work.  I plug the gray 1/8” plug from
> the headphones into the smaller 1/8” standalone jack in the adaptor in the
> adaptor which came with the proset and that is the way it seems
> to tx when I
> key the keyer.
>
>
>
> My question is:  If it does indeed require to jumpers from the soundcard,
> where do I connect them to get RTTY to work.  What portion of my proset
> headphones connectors should not be connected when I achieve this?
>
>
> I am using HRD and have been trying to use the PSK31 portion of
> the program.
> I also have “digipan” loaded on my computer and was going to try this
> program as well.  I am open to any suggestions for a RTTY program.
>
>
>
> Dohn N8EWY
>
>
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