Cecil
Good thought. As I understand it a receiver doesn't really need any power,
so if the antenna is 50 ohms and the Rx input is say 1000 ohms most of the
power has to be relflected to the antenna.

--

73
Hank WD5JFR
"Cecil Moore" wrote in message
...
Henry Kolesnik wrote:
How about a little more explanatin on the 50% reradiates?

In a perfectly matched system, half the power is "lost"
in the source. In the case of a receiving antenna, that
power is lost to radiation from the antenna during
receive, i.e. the antenna radiation resistance is the
"source".

Something I have wondered about: If we simply amplify
the receiver voltage through a near infinite impedance
FET with virtually no load on the signal, do we get the
signal information but lose virtually all the power to
re-radiation? (assume high S/S+N)
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73, Cecil http://www.qsl.net/w5dxp

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