Wow. I've never seen piezo filters used that close in with success, but Chips is a much better source than I am.
Let us know how it works out, and what it costs. 73, Paul, AE4KR ----- Original Message ----- From: Bob Ricci To: [email protected] Sent: Wednesday, March 25, 2009 8:00 PM Subject: [Repeater-Builder] Re: Thank You - Interference Help - WTB I just got this from Chip: I tight band pass filer ((http://anglelinear.com/filters/coax_filters.html) followed by an Hi dynamic range Bipolar preamplifier (http://anglelinear.com/bipolar/bipolar.html) then into the crystal filter (-7 db) then in to your receiver. That will eliminate the Catalina repeater. The hi level preamplifier can handle the big signal. There are companies that make the crystal filters, special order of course as we do not. --- In [email protected], "Paul Plack" <pl...@...> wrote: > > Nope. No matter how tight the filter response, it has slopes, and one side will overlap your receiver's desired bandpass. > > You'll have to solve this one using political means. > > ----- Original Message ----- > From: Bob Ricci > To: [email protected] > Sent: Wednesday, March 25, 2009 7:08 PM > Subject: [Repeater-Builder] Re: Thank You - Interference Help - WTB > > > Back to the question, though. Will something like a Angle Linear get in close enough to knock down interference that close? >
