Joe-
You are just simply wrong. And in any case the question was about
filters not the signal. Been using stacked 250 Hz filters for over 30
years on Icom, Kenwood, Yaesu radio's. They simply work in RTTY
contesting always have and always will. Theory, math, which I trust
Chen on far more than I believe you may indicate something else but
experience tells me narrow is better for contesting, perhaps wider for
weak signals but if they are that weak most won't hear them at all
during a contest which is why DXing if different from Contesting.
On 8/23/2013 8:05 AM, Joe Subich, W4TV wrote:
And most FSK signals are 370 Hz wide or more
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