K4SB wrote:
>
> Also remember that the RTTY NAQP is this weekend.
>
> Come on guys, get your feet wet. You need 2 isolation transformers
> from RS, a sound card and MMTTY.
>
> Just hook the audio out of your transceiver through the transformer to
> the mic in or line input of the sound card, and hook the speaker out
> of the sound card to your audio in jack or mike. Only thing to
> remember here is that the black and white leads of the transformer
> always go toward the computer sound card.
>
> You also need a PTT circuit which is identical to the CT, NA, ect.
> ect. circuit. Use
> RTS on a Comm port to feed the dropping resister.
>
> Of course, your rig may well have a FSK jack on the rear. Really gets
> simple now. Just wire pin 3 of a DB9 through a 1K resister directly to
> the jack build up your PTT circuit, ( using the same comm port ) and
> have at it.
>
> If you don't have the FSK built in, tell MMTTY that "LSB is really
> FSK", put the hummer on LSB and fire away.
>
> MMTTY does not generate a Cabrillo log but I will generate one for
> anyone who sends me a log.
>
> One thing about RTTY, it's nice and quiet! MMTTY has a built in scope
> and tuning indicators, and you don't even need to listen to any audio.
> Just sit there with your mouse and click away.
>
> 73
> Ed
|