[RTTY] FSK is bad?

[Bob Burns W9BU]

Late model Icom radios, including the IC-7600 that I use, gives the user 
the option of setting the RTTY FSK Mark Frequency to 1275, 1615, or 2125 
Hz. The default is 2125 Hz. The downside of selecting either of the two 
optional frequencies is that the internal RTTY decoder and the twin peak 
filter only works when 2125 Hz is selected.

I don't care for the sound of 2125 Hz RTTY, so I typically use 1275 Hz 
and let MMTTY or 2Tone decode the signals.

Bob...


On 10/25/2016 5:59 PM, Jeff AC0C wrote:
> You change the shaping by moving from FSK where you have zero control 
> over to AFSK where you have full control. Another advantage of AFSK is 
> that you get to set the tone pair where it sounds good to your ears 
> instead of being stuck with the 2100 hz rasp of rigs without a 
> low-tone pair option force.
>
> As Joe likes to point out, full control with all knobs turned to 11 is 
> a problem.  But I think that a guy who has learned to use his mic gain 
> control can learn how to set his AF drive level on AFSK.
>
> 73/jeff/ac0c
> www.ac0c.com
> alpha-charlie-zero-charlie
>