This doesn't exactly answer your question but it was -30*C here this morning (it gets even colder sometimes) and it's (generally speaking) +/- 80% humidity here, pretty much year round. Some years back I ran a RCSV-8 remote antenna switch and I am not 100% sure if it helped or not, but I always left 1 relay on always. I realize the amount of "heat" produced by 1 relay would be very minimal,. but in my mind it may have helped. Did it?
Not sure, but since I started always leaving the 1 relay energized, I don't recall it ever sticking in the middle of winter.
These days I have other remote switches and 4-SQ controllers and none of them stick. (better quality than the old RCSV-8 though)
I have never tried it but I have heard stories about installing little light bulbs in an enclosure to not really keep it warm, but to drive out moisture.
GL Mike VE9AA "NB" _________________ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
