Fellas,
I recently bought one of these CPX220-12 220 MHz cavity filters from Fair
Radio Sales:
https://www.fairradio.com/catalog.php?mode=viewitemitem=3886
just to see what it was. It is a true bandpass cavity, with identical
coupling loops behind the two N connectors. The one I received could best
be described as Like new, pulled from equipment. It has decent
selectivity, but I know that the loops need to be modified slightly (very
easy to do) to optimize performance in the 222-225 MHz band. As delivered,
it performs best above 225 MHz. It appears to have been set at the factory
at 220 MHz, and the paint on the adjustment screws is intact, suggesting
that it was never placed in service.
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of de W5DK
Sent: Saturday, February 13, 2010 4:59 PM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] WTB: 220 MHz pass cavity
Bob
I had replied and dropped the ball on checking my inventory. I just
pulled down a two bp cavity series set from a combiner down from
storage and swept one cavity. It's from sinclair and is part 4 of 5
model ctr28140. What spec do you need?
Don W5DK
Sent from my iPhone
On Feb 13, 2010, at 4:57 PM, n...@no6b.com mailto:no6b%40no6b.com wrote:
A while back I posted a WTB for the above. A few people responded but
unfortunately the e-mail chain on the one good prospect seems to have
gotten lost.
So once again I'm looking for a used 220 MHz pass cavity (not pass-
notch,
not window filter a la DCI). Thanks.
Bob NO6B
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