[BC] Satellite sensitivity...
WFIFeng@aol.com
WFIFeng
Thu Feb 16 11:13:43 CST 2006
In a message dated 02/16/2006 10:49:22 AM Eastern Standard Time,
Towers at mre.com writes:
> Think about it, a 3.8M
> dish with 40dB of gain has a power gain multiplication of 10,000. Put 100
> watts into the feed point and you have a 1MW ERP emission. 5 meter dishes
> is easily 5MW when driven with 200 watts.
>
So then how do these sats receive the 121.5 Mhz signals coming from milliwatt
transmitters with whip antennas? That is pretty amazing, IMHO.
Willie...
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