Dave Platt wrote:
Hi all,

I'm interested in finding out what the state of the art is in low
distortion preamps for HF receiving systems. Anyone out there have
pointers to reasonable designs for a preamp with input IP3 above, say,
+55dBm, with amplifier power requirements limited to half a watt, and a
noise figure better than 10dB? IP2 should also be high--greater than
+100dBm--though it may be acceptable to have a lower IP2 as frequency
increases.

I certainly hope you're going to be willing to accept an
estimated/extrapolated rating for that last figure, and don't require
an actual performance test!

Somehow this .sig file seems doubly appropriate he

.... from S-30 to ...
Now _there's_ a signal report you don't often enter in your log...
True... most of us are too busy running away from the electric arcs
and dodging the ball lightning :-) -- Dave Platt, in r.r.a.h

--
Mike Andrews, W5EGO

Tired old sysadmin