[TowerTalk] Tall verticals

[Guy Olinger, K2AV]

Actually I wasn't thinking about HI. That's a real haul from end to end.
A 40 halfwave is only 65 feet, tho.

In the northeast we didn't even consider 40m afternoon or night because
of the EU broadcast stations which flatten the band. We did manage to
get 80 meters to work daytime to north of Albany, Binghamton, and
Montauk Long Island from Putnam county, NY, which was all we really
needed. Guess that's something over a hundred mile radius.

However some new modes might open up 350 miles over saltwater even to
daytime 80 M.

I have watched perfect PSK31 demodulation on an 80 meter daytime signal
that I could not hear in the noise. They probably would have needed
another 15-20 dB for minimal SSB communication. I wonder if some kind of
battery box PSK31 might be contrived that converted to CW audio for
super sensitivity, super simplicity. Also get the improved noise figure
of narrow filters on the low bands.

- - . . .   . . . - -     .   . . .     - - .   . - . .

73, Guy
k2av@contesting.com
Apex, NC, USA

----- Original Message -----
From: Jim Reid <kh7m@hsa-kauai.net>
To: Guy Olinger, K2AV <k2av@contesting.com>; DavidC <eDoc@netzero.net>;
<towertalk@contesting.com>
Sent: Wednesday, May 10, 2000 9:54 PM
Subject: Re: [TowerTalk] Tall verticals


>
>
> > That is where 80 meters comes in. It carries better locally
> > than point to point rubber duckies. It also island hops. It
> > will get you out of an area where the duckies are only
> > working 1 mile radius, and 80 meters is a GATEWAY.
>
> Here in Hawaii,  80 meters does NOT work among the
> islands,  spanning some 350 miles,  during the day.
> We use 40 meters during daylight,  then either 80
> or 160 after dark,  much better for our particular
> situation out here.  This has been demonstrated in
> test after test in KH6 land.
>
> 73,  Jim,  KH7M
>
>
>
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