[amsat-bb] Yaesu G-5500 question

jim at k6ccc.org jim at k6ccc.org
Thu Apr 2 15:00:42 UTC 2020

Bob Hammond asked (in part):
> I have my M2 LEO antennas plus a WiMo 23cm helical antenna end-mounted on a
> fiberglass boom with the G-5500.  I also placed a counterbalance lead
> weight opposite the antennas.

> How many of you with similar antennas and a G-5500 have NOT used a
> counterbalance?  Any issues?

I would highly recommend against using any substantial antenna arrangement on an elevation rotor without it being balanced.  If it is not balanced, you are putting far more strain on the gears and motor.  Try this to understand the difference.  Take your antenna, and hold it at one end with one hand.  Point it at the horizon.  Then rotate it so it points straight up.  Now move your hand so it is at the balance point, and repeat the demo.  Which one do think is easier?  Don't have an antenna handy, use a long piece of pipe, or conduit, or rebar, or even a stick or baseball bat.

Jim Walls - K6CCC
jim at k6ccc.org

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