Hi Peter:
The pair of 250's is probably a matter of taste and how much you
like to dig for a signal. I own a pair in my OMNI VI and I like to
have them when I am digging a weak one out of the noise, not just
the QRM. The character of the one in the 9 MHz IF is different than
the character of the one in the 6.3 IF, and I like to have both. If
you own both 500's, I am sure you know what I mean. I like the pair
of 500's for QRM, but the pair of 250's is super in digging in the
noise (however, I occasionally use an outboard preamp even on 40
meters to bring it all up enough to hear well, the pair of 250's
gives me a great s/n ratio but is lossy.)
My vote is to have both, but many good ops disagree.
Clark
WA3JPG
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