[Lowfer] EH still on mind

[Dave Riley]

> I don't know.... I'm usually very skeptical of any magical antennas,
> especially at LF, but I'm not convinced the EH principle in these antennas
> doesn't work. At 1750M the scaled dimensions relative to the 40M design
> example given might fit our Lowfer 50ft defining cylinder fairly well.
Might
> be worth a try.......
>
> Bill A

I agree Bill, after trying to see the projected picture in my minds eye and
after building and tuning AM broadcast directional arrays, a stint of lowfer
DX using manual CW with antennas @ sea, fooled with 10 ghz DX antennas and
trying to focus laserlight so's 3mw is 70db over noise @ nine miles I keep
seeing a small, very efficient, certainly less loss and what amounts to a
point source...

I am encourged towards this thinking because of a guy who came through this
town in 1906 and did serious improvements in our craft by thinking outside
the box...  www.radiocom.net/Fessenden

My 6' 24ghz heavy dish is now the ground end of a similar but simpler
antenna. It consists of an old RF alternator copper wound solenoid with a
'top hat' load which is a 3' microwave dish. The solenoid self resonates
near the 1600-1700kc. part-15 band so that is where I put it. With the sine
wave from the HP RF sig gen it was audibly heard up past Montreal and dsp'd
most of the time. The same thing was tried with an old 50kw common point
matching inductor, silver plated with 3/4" copper pipe out of each end of
the tuned inductor into a 1x3' 'fly swatter' off each end which was 10' top
to bottom to keep part-15 pure....  It copied 20 AM stations here in the
daytime on a crystal set and a full dial's worth at night... A WHOLE LOT
BETTER THAN A 50' WIRE...

Same thinking said to put 2 microwave dishes together with their back planes
touching to within a half wave, there to put a 10ghz dipole for a gain vert.
with low angle on horizon... Is a omni waveguide of sorts which doubles as a
passive repeater much the same as the 12" mirrored garden ball does for
laser light..

A series of these E-H or short efficient dipoles could be put along a coax
to make a directional array.. no?? Say one about a mile long...
Too many good potential LAN antennas and not enough customers..hi..  W1LM
and I had a rtty link on 186 kc. some years back built into an old HW-7,
worked good, eh Les??

73s de Dave - AA1A