[evlatests] P-Band sensitivity

[Vivek Dhawan]

On Wed, December 4, 2013 23:59, rperley at nrao.edu wrote:
 problem.

I get about the same as Rick, rms ~12 mJy in the first image (based on
his SEFD of 1500).

However, the SEFD on the VLBA at 327 is about 2500. So that may explain
some of it. effic is about what Rick assumes, but VLBA Tsys is about
200-250K. Does Paul's Tsys include the galactic emission?


|
|>From Paul's spreadsheets, the system temperature is measured to be about
| 100K.  If the efficiency of the antenna is ~ 0.4, then the expected SEFD
| is:
|
| SEFD ~ 5.62*Tsys/effic ~ 1500 Jy.