[TowerTalk] Single tower and 3 monoband yagis - "Christmas three"

Richard (Rick) Karlquist richard at karlquist.com
Thu Dec 11 20:07:35 EST 2014

On 12/11/2014 6:16 AM, Fuad Arnautovic wrote:

> Antennas are three monoband yagis as follows
> 20m 4el 9,5m boom
> 15m 5el 9,6m boom
> 10m 5el 7,6m boom

For SO1R, even if this works without interaction
(unlikely), it is at best marginally better than
a 4 element SteppIR and definitely inferior to a DB42,
which adds 40 meters.  In this case, I can't
think of any reason to use a Christmas tree.

For SO2R, you are handicapped by not being
able to rotate the mult antenna independently
from the run antenna.  That's a big drawback.

Might be better to have the two lower antennas
on TIC rings, which gives you unlimited stacking
distance and independent direction.

Of course you could have two SteppIR type antennas,
one above the tower on a rotator and the other on
the tower on a TIC ring.  You only need 2 bands
at a time for SO2R.

Rick N6RK

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