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Tilt
Over Gadget
Those of us Amateur Radio Operators who don’t c=
limb
are always looking for ways to do antenna work with our feet on the ground.=
The
first step for me was a crank up tower where I could stand on the roof of t=
he house
and accomplish the tasks. When I moved to this location 14 years ago I mana=
ged
to construct a tilt over fixture for the crank up mast. It still required a
ladder if I installed a three element HF Beam because the element length
limited the tilt.
A
couple of weeks ago I took my problem to the Newsgroup
rec.radio.amateur.antenna.
I
was considering mounting the beam vertical but the guys there explained the
reasons that was a bad idea. It was also suggested that I look into the
Tiltplate mechanism offered by NN4ZZ at http://www.nn4zz.com/tiltplate.=
htm.
His
product is considerably more robust (and expensive!) than I need for my
Cushcraft A3S but it is proof of the mechanics.
Armed
with the idea and a well stocked junk box I have constructed the prototype =
that
I show here. The only shortcoming I have noted so far is that there is too =
much
torsion flex in the vertical axis. I will remedy this when I am comfortable=
I
have a simple solution.
In
the meanwhile, I will share the work in progress…. W8CCW John Ferrell=
johnferrell@earthlink.net

In
place with mast retracted, Pic23

Mast
tilted over to service position, Pic 3

Details,
Pic 4

Pic
5

Pic
6

Pic
7

Pic8

Pic9

Pic10

Pic12

Pic14

At
normal operating height. Pic29
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