9 Sep
2006
9 Sep
'06
7:53 p.m.
----- Original Message ----- From: "McGrane" tmcgrane@suffolk.lib.ny.us To: "Amsat BB" amsat-bb@amsat.org Sent: Saturday, September 09, 2006 6:01 PM Subject: [amsat-bb] Eagle efficiencies
Greetings
I personally prefer lower frequencies for satellite transmitters because of the lower path loss.
Patrick, N2OEQ
Hi Pat, N2OEQ
At lower frequencies the path loss is lower but you requires bigger antennas.
The gain of a constant aperture antenna compensates for path loss changes with frequency.
In other words to get the same RF energy from the free space changing the frequency and path loss you need the same antenna aperture.
73" de
i8CVS Domenico