MMTTY setup tips!

If you have a RIGblaster Plus or Pro and wish to operate pure FSK instead of AFSK with your radio in the RTTY mode you must configure and connect the RIGblaster's keying output to your radio's FSK keying terminals. The normal wiring of the cable should have the sleeve on COM/GND and the tip on the FSK keying pin of the radio's FSK accessory jack.

You must configure MMTTY's setup utility to operate in with true FSK to control the keying via the TXD line of the serial port that is connected to the RIGblaster.

MMTTY Setup Screen shot.
http://www.westmountainradio.com/Image/MMTTYfsk.jpg

For AFSK RTTY operation you should normally set your radio to LSB (unlike PSK programs) or use USB with MMTTY set to "REV" (reverse shift). For FSK operation you must set your radio and/or the software so that your receive and transmit mark and space tones are correct.

Many USB to Serial Port Adapters, including the IOGEAR Model GUC232A, offer limited capability for FSK RTTY. We have only found one arrangement where it will do RTTY/FSK and that is with MMTTY using the addin called EXTFSK.

See our RTTY Links page for more on this.
http://www.westmountainradio.com/links/rtty.htm

An excellent site for additional RTTY Tips ==> http://www.aa5au.com/rtty.html