"J. Mc Laughlin" wrote in message
...
A company in FL - well, they might have been blown away by now - called
something like Pizio Technologies makes VHF bandpass filters from
"crystal"
elements. Such filters are capable of rejecting adjacent channels in the
150 MHz range and are needed in some cities if you have to put a receiver
downtown.
As Dale points out, it takes a serious filter indeed to perform what
you
wish such a filter to perform. On the other hand, I have deliberately
tuned
some higher end FM broadcast receivers to a weak adjacent station in the
presence of a fairly strong station to find a bit better than mediocre
performance. Some receivers have much better filtering than other
receivers.
So, as another summery: rotate antenna for best SNR; get a receiver
with better filtering; and consider a special-made crystal filter if you
still have a problem. 73 Mac N8TT
PTI is definitely still in business and are very capable of building such a
filter- unfortunately in small quantities they are cost prohibitive.
Dale W4OP
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