[amsat-bb] Antennas

Joe Fitzgerald jfitzgerald at alum.wpi.edu
Wed Aug 5 18:36:10 UTC 2015


You are correct in that the antenna with the smaller effective aparature
will collect less energy in a given time period.

But things are never equal - preamp performance, feedline loss etc.  For
satellite antennas, maximizing Gain/Noise Temperature is essential figure
of merit.   It does little good to collect lots of energy if that energy
is thermal radiation frin the roof under your antenna!

-Joe KM1P

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