[Motorola] Micor UHF repeater question

[Eric Lemmon]

Send your KXN1052A channel element to ICM and have it fully compensated to
the crystal.  If you didn't buy the crystal from ICM, it may be prudent to
just have them make a new crystal and compensate your channel element to
match.  It costs about $30 for the compensation and $20 for the crystal.
It's well worth the one-time cost to avoid the aggravation.

73, Eric Lemmon WB6FLY
 

-----Original Message-----
From: motorola-bounces at mailman.qth.net
[mailto:motorola-bounces at mailman.qth.net] On Behalf Of
n_griggs at bellsouth.net
Sent: Saturday, October 14, 2006 11:34 AM
To: motorola at mailman.qth.net
Subject: [Motorola] Micor UHF repeater question

I am working on a Micor UHF repeater tuned to 443.7 MHz.  The output of the
exciter is about 65 KHz high, suppose to be 147.9 MHz but is actually on
147.965 MHz.    I can adjust it down to 147.93 MHz but no lower.  This
repeater is one with a tripler/low-level amplifer after the exciter.  Would
changing one of the capicators in the ICOM  that is in series with one of
the thermistors bring the frequency down?  Or should I try and get a new
crystal for the unit?  This is a new one but I had a problem with the output
dropping when the metal cover was placed over the unit.  Grounding the
crystal solved that problem along with adjusting the trimmer cap a little
lower.    It has been a while since I had to 'pull' a crystal on frequency
and most of those were in GE/Johnson/Regency-Wilson equipment.  The cap
values currently in there now are 9.5 pf  and 15 pf.   The ICOM model is
KXN1052A.