On Sun, 11 Jul 2010, Paul Keinanen wrote:

On Sun, 11 Jul 2010 10:50:58 -0500, "amdx" wrote:

In a direct conversion receiver, does the osc. run at
exactly the same frequency as the received signal?

Assuming the answer is yes;
Is it possible to have a high Q LC front end at the output from the
antenna,
split the signal and feed one output to the rf input of the mixer and feed
the other splitter output to an amplifier and use the amplified signal to
drive the osc input of the mixer?

Are you trying to reinvent the regenerative receiver ?


No, because regeneration is about feeding the output of a stage back into
the input, so there is near infinite amplification.

Michael VE2BVW