"RST Engineering" wrote

Having said that, since power consumption for a ground station is not a
primary concern, you can put the electronic device that controls frequency
into a temperature chamber (crystal oven) and expect that day in and day
out
it will be within a few Hz. of where it was originally set.

Is this still commonly done today? What is a crystal oven, how big, and how
is the temperature regulated?

What? (wha) I (wha) can't (wha) hear (wha) you! (wha) g
--
Jim in NC