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laura halliday · December 25th 06, 07:18 PM posted to rec.radio.amateur.homebrew

wrote:
I don't much like the receivers I've used in contemporary tranceivers
-- the general coverage synthisized open front end ones. (I hasten to
add I haven't used any of the $4000 rigs; can't afford them). But the
ones I have used seem plagued with near-signal desensitization, front
end overload, etc., and I suppose all that comes from putting the
selectivity so far downstream.

I'm almost tempted to get an old 75s4 and shut up, but I really don't
need another room heater, so, instead, I'm thinking of building my own
receiver along the lines laid down by the late Doug DeMaw in his _QRP
Notebook_. Single conversion 160m superhet with Collins mechanical
filters in the IF and a series of down-converters for the other bands.
Anybody got any experience with the DeMaw Design?

I'm partial to KK7B's stuff, since the less you mess with the
signal turning it from RF to audio, the better it sounds.
And if you *want* to mess with it, you've got a better
place to start.

My best shack receiver is a Harris RF-590. A genuine
professional military/industrial/spook radio, rack mounted,
weighs a ton, megabucks new, but reasonable if you can
get one surplus. If you can't hear it on this radio, you don't
need to hear it.

Laura Halliday VE7LDH "Que les nuages soient notre
Grid: CN89mg pied a terre..."
ICBM: 49 16.05 N 122 56.92 W - Hospital/Shafte