Topband: RE: PSK on 160

Tom Rauch w8ji at contesting.com
Tue Apr 27 20:50:32 EDT 2004


<with no problems.  I have tested up to 800 watts with some
amateur/engineer
<friends and the signal
<was clean on the analyzer...and they were within 50 miles
of my station.

Respectfully Dick 99% of people with test gear can't measure
more than 40dB down over the air, engineers or not. Even my
newer test gear with all sorts of digital processing and
signal storage does a poor job in making off the air
measurements unless the signal is booming in. It's actually
better to use a known good receiver than even high quality
spectrum analyzers.

Observers have to know where to look (they have to know your
VFO frequency and the tone frequency).

They also must have a quiet location and receiving antennas
comparable to other people using that area of the band.

Stuff generated at audio and processed through audio stages
and SSB filters belongs in an area with other signals
generated the same way and well away from weak signals. If
PSK was really all that good for dynamic range at moderate
bandwidth,  you wouldn't see all the PSK users whining
constantly about people running more than 20 watts. The poor
typical dynamic performance is what requires everyone to
keep their signals near noise floor.

73 Tom




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