I would recommend placing the low beam at 40 to 45 ft
which will put the maximum radiation right in the middle
of the NULLS of the higher beam and provide coverage
of ALL the higher angles supported by the ionosphere.
FWIW, I find that my 40 ft high TH7 beats my 80 ft high
TH6 on ALL bands during mid day to EU and almost always
to Africa.
I use a TWO straps on my climbing belt so I am always
attached to the tower when climbing around obstacles.
My (smaller) sidemounts are attached to tower legs with
PVC sleeves for protection of the leg. Straddling two legs
is a stronger approach. Keep the antenna close in for
mechanical integrity.
Tom N4KG
On Sun, 15 Dec 2002 Steve Jackson <kz1x@yahoo.com> writes:
> I am thinking about mounting a Force12 C-36XR on the
> side of my Rohn 55G tower, at about 55 feet.
>
> This will be a fixed-mount configuration; no rotor.
> No phasing with the rotatable antenna, either ... the
> 10-15-20 and 40 M yagis on this fixed-aim boom will be
> individually switched in.
>
> The question: How much of an offset from the tower is
> necessary for this to work well?
>
> I plan on using an W9IIX SO-3 or SO-3L mount.
>
> Second question: How does one climb past this antenna
> to work on stuff above it?
>
> Additional information: The tower is 80' tall and is
> guyed with Phillystran 6700 at 40 and 80 feet (using
> Rohn torque arms).
>
> Steve KZ1X/4
>
>
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