On 8/18/11 10:31 PM, Dave Guimont wrote: > That's why the quadrifilars work so well. I measured the pattern some > time back, and the "beam width" is about 140 degrees....
Yes, something with that kind of beamwidth would be ideal on the nadir-facing surface of a stabilized satellite in low earth orbit. It would be even better if the gain in the straight-down direction could be reduced in favor of gain at the edges. Ideally you'd have a constant power density over the entire visible earth. You could of course use a much more directional antenna on the ground if it can track the satellite. --Phil _______________________________________________ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb