I am moving a 463/468 MHz Micor repeater to 444/449 MHz. I ordered new
xtals from ICM and the receive xtal is OK. However I can't get the xmit
xtal to pull onto freq. It will pull within 3 KHz above 444.350 MHz.
This isn't the first Micor I have changed rocks in myself. I've done
several in the 450-470 MHz range without any problems and no realignment
callbacks to the tower site. This isn't my "first time."
I have a Micor test meter and used it to align the exciter and
everything tuned as designed. I called ICM and they doubted it was
their error and it must be my channel element since the frequency move
was quite far. But for $30.00 they would "fix" the problem.
Does anyone have any technical docs on the Micor channel elements and
the require capacitor changes? The channel element is KXN1052A. I would
rather replace the required cap with the correct value and get this
repeater on the air instead of waiting another 3 weeks for ICM.
I have read the Repeater-Builder webpage regarding Micor elements and it
doesn't address the need to replace any components inside the element
when moving from 463 to 444 MHz.
73's,
Randy
WB0VHB
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