I have a UHF Micor repeater in a Facility that is not heated, Could see my
breath last couple times I was there. It has been there for almost 3 years, and
for a year before that it was in another non-temperature controlled environment
(Just south of Chicago, so winters get cold). I have not had to touch the
channel elements since the first time I set them during the initial tune-up.
I also have a Mitrek repeater in a somewhat-controlled environment, but not
really. Temps get cold in that one too. Its been there for 4+ years. Only had
to re-adjust whan I had a radio go bad.
The Crystals were both done at ICM. For the few $$$ more, seems worth the while.
Tom
W9SRV
