Thanks for all the great info. I ordered the Ubiquiti Power Station,
as it was rated to -40 C, while the others were rated to -20 or 0 in
some cases. The Nano stations would have no doubt sufficed in this
particular network, and I could have rigged up some heat, but being
1100 km away (I'm doing this for family), I need it to set up right
the first time, and just keep working when the east wind blows.

db