[amsat-bb] Yaesu G-5500 rotator boom mounting

[Bob Hammond]

I can send pics to those who'd like to see how I did things.  They are too
big to post on the BB.

Bob W7OTJ

On Tue, Aug 11, 2020 at 7:02 PM Bob Hammond <propgrinder at gmail.com> wrote:

> Thanks everyone for the ideas.
>
> In my situation, I use a 1.25" solid fiberglass rod as the cross boom with
> a split PVC pipe shim inside the EL rotor.
> I used strips of 3M anti-slip tape between the fiberglass rod and the PVC
> pipe for added friction where clamped.
>
> This has worked quite well until we had temps near 100 F.  I think the
> anti-slip tape adhesive got soft and started slipping.
> Part of the problem is that my three antennas are mounted on the end of
> their booms so there's a fair amount of torque/moment arm on the cross boom
> and the clamping area.
>
> I'll put my antenna counterbalance back on the cross boom opposite the
> antennas and that should take care of the issue during hot weather.  I had
> removed it thinking the less mass to rotate/elevate would make my rotor
> gears last longer.
>
> Bob W7OTJ
>
> On Fri, Aug 7, 2020 at 11:02 AM Ed Krome <e.krome at comcast.net> wrote:
>
>> Just the included clamps have proven adequate for a pair of 12’ long
>> yagis.
>>
>> Ed Krome K9EK
>>
>> Sent from my iPhone
>>
>> > On Aug 7, 2020, at 12:35 PM, Bob Hammond via AMSAT-BB <
>> amsat-bb at amsat.org> wrote:
>> >
>> > How do others attach their fiberglass boom to the elevation rotor on a
>> > G-5500?  Just use the boom clamps provided?  Make a sleeve to fit
>> between
>> > the smaller fiberglass boom and elevation rotor inside diameter?  Drill
>> a
>> > hole and pin it?
>> >
>> > All ideas appreciated.
>> >
>> > Bob W7OTJ
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>>