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anyone ever think of building an AM longwave transmitter using class e output
and coupling that to the 50 ft radiator with a tapped toroid output?basically a rangemaster for long wave.
anyone ever think of building an AM longwave transmitter using class e output
and coupling that to the 50 ft radiator with a tapped toroid output?basically a rangemaster for long wave.
seems to me we could have 3 frequencies in am mode.
165, 175, and 185 khz.
we could have a 600 ohm balanced input.
we could even make them in ssb, cw, and digital modes.
seems something like this over sixty four 50 foot radials even at ground level would perform great.
there are lots of possibilities with this type of system. stl, longwave b,casting, longwave qrp dx’ing, etc.
maybe some of the math geniuses here can chime in on what kind of antenna system
bandwidth and performance to expect.
Total posts : 45366Hi there:
You probably already know this, but if you
google the “Longwave Club of America”
you will find a jumping off point to a whole
world of communication down there. Also,
if you google “W4DEX” you will find information.There are quite a few people transmitting in
the 160 -190 KHz area. I think they are all
using digital modes, with many transmitters
operating as continuous beacons.I really don’t know much about it, except that
it is really fun to read about.It would be fun to operate AM down there,
even if it didn’t go very far. It is not an easy
part of the spectrum to deal with, though,
especially for transmitting.Best Wishes,
Bruce, MICRO1690/1700P.S. If you google K0LR, (K “zero” LR)
you will find a lot of longwave info.
He has some longwave transmitters
there, but they are all for cw, not for
AM. They are interesting though.
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