Tnx, it's certainly one of the things I'm considering. That's more effort
than an LC tank on a couple of SA602 pins. But I guess for higher
performance you need higher complexity.

73 Hans G0UPL

wrote in message
...

My analyser Mk2 is already under construction and will aim to provide
masses
more features, greater coverage, and improved dynamic range performance.

Why not go for the minicircuits +14dBm high level mixers ? ... their quite
lossy
(around 9dB loss) but that can be over come. They do need a fair bit of
LO
drive though (50mW) but that's no real problem these days, a couple of
+18dBm
MMIC's (ERA's etc) in push pull mode should guarantee that level of power
and
hopefully give you 3db more than needed so you can use 3dB pad's around
the
mixer.

Clive