----- Original Message -----
From: "John Ragle" <[email protected]>
...the multipath and other
scattering defects spread out the phase information pretty badly (as you
say, "it gets chewed up in the ionosphere). I have never seen anyone
else talk about this problem, tho it is evident enough on long paths. It
is worth mentioning.
Very true
Perhaps you can help me identify a mode that I see frequently,
usually just at the upper end of the PSK region, on 20 meters.
Possibly MFSK16 which is quite common, at ~ 14.076 you'll see JT65.
MFSK16 is better than PSK31 when there's multi-path.
Simon Brown, HB9DRV
www.ham-radio-deluxe.com
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