Re: [amsat-bb] Antenna indecision

[Richard@xxxxxxxxxxxxxxxxx (Richard W L Limebear)]

KB8QIR@aol.com writes:

> ***Would a dual-band beam such as the one from Cushcraft or Comet cover this 
> project if mounted verticlely, tilted upward at a angle of approx. 30 to 40 
> degrees, rottated either by hand or a TV rotator?

Don't hand-point antennas indoors; some of the things they hit may break,
some may hit you back; you may have to take others to hospital.

Rule of thumb is to elevate the antenna by half its beamwidth; say (usually)
15-25 degrees. You then a) cover more sky; b) still cover horizon for 
terrestrial stuff; c) work very well for tropo-scatter.  This leaves a hole 
in the straight-up direction - an indoor 2-element beam pointing straight up 
can be simple, out of sight, (also messy and not weatherproof) and accessible 
and still give good service.

73
Richard W L Limebear G3RWL
g3rwl@amsat.org
FOC # 1188

          So many beautiful girls ..... (sob) so little time
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