________________________________________
From: RTTY [rtty-bounces@contesting.com] On Behalf Of Joe Subich, W4TV
[lists@subich.com]
Sent: Tuesday, January 08, 2013 4:47 PM
To: rtty@contesting.com
Subject: Re: [RTTY] RTTY Now trashy signals
.
All in all it's easier to generate a garbage signal with AFSK than
with a properly configured FSK transmitter even though the AFSK
signal may be marginally better if everything is optimum.
Which was basically my point. Discounting analog FSK implementations from 30
years ago, there is nothing you, Joe Ham, can do should it be proved that, yes
indeed, your 2 year old DSP transceiver is splattering when modulated using
FSK. There are no user accessible adjustments and with the few DSP designs
I've looked at there are no internal hardware adjustments either so you can
probably safely attribute the problem in that case to bad design. Which has no
cure except to buy a different model radio.
A ham running AFSK owns a lot more responsibility for the cleanliness of his
signal than one running FSK in the sense that AFSK performance is more
dependent on user configuration.
Al
AB2ZY
_______________________________________________
RTTY mailing list
RTTY@contesting.com
http://lists.contesting.com/mailman/listinfo/rtty
|