[RTTY] MMTTY, permanently disable AFC

[David G3YYD]

I have never used FSK and never will. It is not flexible and occupies too
much bandwidth (K3 excepted). Often FSK is sent with timing jitter too.

With AFSK, when S&P you copy a call and you hit enter to call him. No need
to worry about tuning him precisely so you call him on his frequency as the
software has done it for you. With FSK you either wait for him to transmit
again to tune him in or you call off frequency with a lower probability of
success.

Some will say that people misuse AFSK, yes but then some misuse SSB and CW
as well. All of which are a minority and not a reason for not using the
system oneself correctly.

73 David G3YYD

-----Original Message-----
From: RTTY [mailto:rtty-bounces at contesting.com] On Behalf Of Bill Turner
Sent: 17 June 2014 20:22
To: rtty at contesting.com
Subject: Re: [RTTY] MMTTY, permanently disable AFC

ORIGINAL MESSAGE:          (may be snipped)

On 6/17/2014 12:59 PM, Joe Subich, W4TV wrote:
> AFC behavior is quite good (and tends to mimic that of 2-Tone) for FSK 
> operation (fine tuning only) in both S&P and Run.

REPLY:

Joe's method is better than nothing, but again, if you're using FSK there is
NO NEED to have AFC on when S&P'ing, even if restricted in range as Joe
states. Having AFC on while manually tuning your VFO will lead to your RX
and TX frequencies being different by a small but definite amount. Why not
get them both exactly the same?

73, Bill W6WRT
dezrat at outlook.com
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