"m II" wrote in message
news:W31Md.195891$KO5.176949@clgrps13...
Brian Hill wrote:

Moral is- Buy as much radio as you can
afford but $s don't garentee results, that takes experimenting ,
research
and work to get the weak ones.

Years ago I had a single conversion Radio Shack shortwave all bander. It
was
ok until I put a wire on the antenna terminal. Like magic, I got a lot of
the local am radio stations repeating over the dial.

I'd say getting a double conversion set should be the very minimum
requirement. If money and choice allow, get a triple conversion.

Some have said that the more conversion stages you go through, the more
noise you get, but I haven't played around with enough different sets to
be
able to form a valid opinion on that.



mike


There are double conv sets that do as well as the triple. Its a matter of
design but yes at least a double conversion type circuit is the norm or
starting point of serious modern superhet design. The Icom R-71s are
quadruple conversion and were/are a favorite for utility dxers like myself.
Sometimes three or four IFs are problematic with intermod I've heard but
I've never had any bad experiences.

B.H.