[Elecraft] K3 - RTTY Question

[Richard Ferch]

Dick,

I believe that both the cause and the solution to your problems lies in 
MMTTY, not in the K3.

Did you have NET on in MMTTY? I suspect that if you turn NET on, that 
will solve your problem. NET forces MMTTY to use the same frequency on 
transmit as on receive. If you don't have NET on, MMTTY transmits on the 
HAM frequency regardless of what audio frequency it is receiving on.

Also, did you have AFC on in MMTTY? That could have been the cause of 
your problem. AFC allows the receive frequency to be pulled off the 
optimum pitch and if you don't have NET on, AFC will cause your TX and 
RX frequencies to be different.

For that matter, if you tune by clicking in MMTTY's waterfall, that will 
also separate your TX and RX frequencies. When you are S&Ping in AFSK, 
you should always have NET on unless you are very careful never to let 
AFC or mouse-clicking change your receive frequency. N1MM's Align button 
can also be helpful here; after you tune by clicking in the waterfall, 
if you click on Align it will retune your radio so the signal you just 
clicked on is now on your HAM frequency.

When you are CQing, turning AFC on and NET off allows you to copy 
off-frequency callers without retuning. At the end of a QSO with an 
off-frequency caller you should click on MMTTY's HAM button to realign 
your RX frequency with your TX frequency.

N1MM Logger has options to turn NET on and AFC off in S&P mode and vice 
versa in running mode.

73,
Rich VE3KI


K9OM wrote:

> This weekend I used my K-3 on RTTY for the first time.  Using the  K-3's 
> AFSK-A mode along with N1MM & MMTTY.
>  
> I quickly noticed that I was off frequency by differing amounts on  each 
> band and seldom would anyone come back to me when I called them.   So I called 
> CQ myself and waited for people to call me and then went tuning  to see 
> what freq. they were on.  To tune callers in on  20-meters it usually required 
> an RIT setting of +0.10 while on  40-meters they usually called in with RIT 
> at -0.10 ... seemed to  be a little different on each band.
>  
> Question: Is there a way prior to operating, to setup the  K-3 so the 
> transmitted RTTY is on freq. on each  band?