Ed's message is another confirmation on why it would be really great if
Elecraft would modify the K3 software so the MENU would allow us to select
separate AGC settings for: CW, SSB, and RTTY.
I realize this may be a first, but Elecraft is good at leading the pack!
73,
Dick- K9OM
In a message dated 3/8/2017 3:54:47 P.M. Eastern Standard Time,
[hidden email] writes:
Below is a thread from 7 March 2016 about AGC usage with RTTY decoders.
David Wicks, G3YYD, is the author of 2Tone and Kok Chen, W7AY, is the
author
of CocoaModem.
Anecdotally, my experience after 250,000+ RTTY QSOs over the past 15 years
concurs that minimizing AGC action supports best decoder performance. If
my
ears, or widely varying signal levels, can't tolerate AGC Off, then I use
AGC Slow, SLP=0 and THR=14 or higher.
Note also the comments about receiver IF bandwidth of 500 Hz except in
extreme cases. Even in big RTTY pileups such as I encounter sometimes in
DX
locations, Again, I've anecdotally found that 500 Hz decodes better most of
the time. I seldom go lower. This also implies turning off the K3
Dual-Tone filter.
Both of these points (no, or minimal, AGC and moderate IF BW) are not
intuitive, especially for an experienced CW operator.
Ed W0YK
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