It was Einstein who made the real trouble. He announced in
1905 that there was no such thing as absolute rest. After that there
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.