[amsat-bb] Help and advice needed

Rolf Moberg oh6kxl at sral.fi
Thu Jun 14 12:57:46 PDT 2007

I'm planning my station. I need some advice from more experienced 
satellite operators.

My rotator will be Yaesu G5500. 70cm antenna is 3m long helix and 2m 
antenna wil be 2.4m long Wimo cross yagi phased for circular polarization.

I've planned to use 3m long glass fibre boom. Antennas will be attached 
to boom ends. They sell a boom with 40mm diameter and 2mm wall thickness.

What kind of solutions you have to create more friction to the junction 
between antenna boom clamps and boom? And another point is where G5500 
boom clamps are attached to boom center. Should I cover those four 
places with some metal strips?

And last. 70cm flexible feeder will be installed back of the helix plate 
and then to the boom. 2m is a question. Should I run rg213 feeder via 
yagi boom to the fibre glass boom? Or should I let rg213 feeder go to 
the reflector end and make a loose loop towards to glass fibre boom?

Rolf Moberg

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