It was Einstein who made the real trouble. He announced in 1905 that there was no
such thing as absolute rest. After that there never was.
-- Steven Leacock
The System: Now that the LNA has been moved so that it is directly connected
to the feedhorn, this location change has caused a temperature stabilization issue
that can be solved in several ways.
Other options are available, but these two seem to be our best options. Temperature
stabilization is much more important to us than intense cooling, because we simply
need to have a predictable baseline from day to day. The sensitivity of the front-end
devices, especially the LNA, rises as the temperature decreases, and falls as temperature
increases. Once we have these components stabilized, weaker signals can be detected
and the data will be cleaner overall.