[amsat-bb] Counterbalance weight on antenna rotator?

[Hasan al-Basri]

Bob,
Are you talking Front to Back (EL) or Side to Side ?

When I had clearance issues I had to mount my 2m yagi forward of its
natural balance point.  I hose clamped a steel bar on top and parallel to
the boom to rebalance the load of the yagi on the rotor. It worked fine. I
also used tape protected tie-wraps as a secondary safety net, so the iron
bar didn't fall on someone's head!

I did not have any side to side balance issues across the rotor. (The 70cm
on one side and the 2m on the other, but if I would have, I would have used
the same trick: Steel bar on the lighter side of the boom, to balance the
load across the rotor.)

Cheap, easy, dirty. But be sure to make that steel bar counterweight mount
to the antenna boom or cross-boom VERY secure.

73, N0AN


Hasan


On Fri, Oct 4, 2019 at 9:58 AM Bob Hammond via AMSAT-BB <amsat-bb at amsat.org>
wrote:

> Do a lot of you, or all, use a counterbalance weight on your elevation
> rotor?  If so, how did you implement it?
>
> I have 3 antennas (2M, 70cm, 23cm) on my cross boom and want to reduce the
> load on the Yaesu rotor so it lasts longer.
>
> 73s,
>
> Bob
> W7OTJ
> _______________________________________________
> Sent via AMSAT-BB at amsat.org. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
> expressed
> are solely those of the author, and do not reflect the official views of
> AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: https://www.amsat.org/mailman/listinfo/amsat-bb
>