Richard Harrison wrote:

Cecil, W5DXP wrote:
"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?"

Not as much as possible.

Just as the reactance must be tuned out of an antenna to receive maximum
available power, to get maximum received carrier power, the resistance
of the load in the antenna must be reduced to only that matcing the
radiation resistance. Walter Maxwell, W2DU has had it right all along.
Maximum power transfer requires a conjugate match.

But the information in a received signal can be had while
consuming very little of the received signal's power. For
instance, ten feet of wire into my IC-756PRO results in
perfect reception of Neal Boortz on WTAW on 1620 kHz.
--
73, Cecil http://www.qsl.net/w5dxp

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