Question

Wed, 10 May 2000 01:40:24 -0400

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Hi,

    Here is a question from a friend in Los Angeles...

    "I'll bet you can answer me a 'technical question' re PSK31 that =
nobody
seems to know! Of all the digital modes, which is best for long-haul DX
S/N performance? I'd bet that PSK31 falls apart after some fixed =
distance
due to phase distortion in the propagation path, such as long-paths or
paths over the poles, yes? For brute-force best S/N over such paths,
which digital mode would work best? I had liked PSK31 for its tiny BW,
but the phase probably kills it. Whats preferrable when using HF or
6-meters? Any advise you can give would be greatly appreciated!"

    What's the answer??

Thanks.

Randy

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<DIV><FONT face=3DArial size=3D2>Hi,</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>&nbsp;&nbsp;&nbsp; Here is a question =
from a friend=20
in Los Angeles...</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>&nbsp;&nbsp;&nbsp; "I'll bet you can =
answer me a=20
'technical question' re PSK31 that nobody<BR>seems to know! Of all the =
digital=20
modes, which is best for long-haul DX<BR>S/N performance? I'd bet that =
PSK31=20
falls apart after some fixed distance<BR>due to phase distortion in the=20
propagation path, such as long-paths or<BR>paths over the poles, yes? =
For=20
brute-force best S/N over such paths,<BR>which digital mode would work =
best? I=20
had liked PSK31 for its tiny BW,<BR>but the phase probably kills it. =
Whats=20
preferrable when using HF or<BR>6-meters? Any advise you can give would =
be=20
greatly appreciated!"</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>&nbsp;&nbsp;&nbsp; What's the =
answer??</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Thanks.</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Randy</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial =
size=3D2><BR><BR>&nbsp;</DIV></FONT></BODY></HTML>

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