[Elecraft] RE: [QRP-L] N6KR FD report
Ron D'Eau Claire
rondec at easystreet.com
Mon Jun 28 21:14:24 EDT 2004
Haw! I bet!
High angle radiation antennas have been employed on purpose for short skip
and local communications for 70 years, at least. That goes back to when Hams
were learning to use the "heaviside" layer for skip communications on the HF
bands with lower angles of radiation. With low angle DX was discovered the
value of high-angle radiation for more "local" coverage. Back then it was
relay stations in traffic nets who paid attention to their radiation angles
to provide reliable day-in day-out communications to handle traffic.
In recent years someone thought the practice deserved a name of its own and
invented "NVIS". For ops who have been around a while, that's sort of like
deciding to call a "transmitter" a "vevelfretzer".
So every time you say "NVIS" don't be surprised to get a puzzled look from
OTs who have know all about high-angle radiation for local/short skip use.
You might was well mention a "vevelfretzer" in the same breath, Hi.
To paraphrase P.T. Barnum, "Something gets re-invented every week!"
Ron AC7AC
-----Original Message-----
This is completely clear and the top notch FD'ers know this even if they
don't understand the mechanism. W2GD puts up a close spaced
wire beam pointing straight up. You should have seen the look on
his face the first time I mentioned NVIS comms. You are taking
advantage of near vertical incidence radiation.
Bob
N4HY
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