[RTTY] AFSK Tips

[Richard Ferch]

My suggestion would be slightly different from Bill's:

1. If you are running, keep AFC on and NET off. If you don't mind using 
RIT to tune in off-frequency callers, turn AFC off as well.

2. If you are S&Ping, keep NET on and AFC off.

I would also add that if you are using a K3, and especially if you are 
using the K3's AFSK Transmit filter, while you are S&Ping you should 
tune in signals exactly the same way you would if you were using FSK, 
i.e. with the big knob on the front of the radio. Do not succumb to the 
temptation to tune by clicking in the waterfall or spectrum display, 
because that risks moving your transmitted signal out of the middle of 
the transmit filter bandpass. This is also one of the reasons for my 
suggestion to turn AFC off while you are S&Ping.

Use the HAM button (or equivalent) to restore your transmit and receive 
audio frequencies to the defaults whenever you switch from run to S&P, 
and any other time you find the mark frequency in MMTTY to have wandered 
away from the default.

73,
Rich VE3KI


W6WRT wrote:

> When contesting:
>
> 1. If you are running, keep AFC on and NET off.
>
> 2. If you are S&Ping, keep both AFC and NET on.