[TenTec] MMRTTY+ Omni 6 question

[Jim Brown]

On 2/4/2014 10:04 AM, Carter wrote:
> I realize that MMRTTY has a 'net' control but that it is only active 
> if you are transmitting AFSK -- and I am not. I also pressed the "HAM" 
> button in MMRTTY which sets the shift to 170 Hz and the mark to 2125 
> Hz, but this then makes the received signal go off freq a bit (that 
> is, the "cross-pattern" tuning indicator is not giving a cross 
> anymore, have to re-tune the receiver and then the copy (and cross) is 
> OK again), but the MMRTTY window that formerly read '2125' does not; 
> it reads around  ~ 1800 -1870 Hz and I am no longer transmitting on 
> the received station's frequency.

In FSK mode, the TX frequency does NOT track MMTTY's AFC. BUT -- there 
are many settings in MMTTY that we can change to suit our needs. For 
example, we can change the HAM defaults to whatever we want -- I set 
mine for low tones (915 Hz mark), which I find easier on the ears, and 
also easier to tune in by ear. I use MMTTY with AFSK and VOX, feeding 
the sound card to the line input of my radio (a K3). In AFSK mode, we 
can turn AFC and NET on and off independently.

Most serious RTTY operators who use AFSK turn AFC and RIT off when 
calling a station, and use RIT or AFC when calling CQ.

There's a pretty good help file, accessible by hitting the Help button 
on the MMTTY menu bar.

73, Jim K9YC