[evlatests] EVLA system

[Jim Jackson]

We checked the central LO system today and discovered that the system was 
not quite in sync and that we had no 0.1 pps at the L350.  The problem was 
traced to a broken BNC connector at the IAT clock in the computer room.  We 
repaired the cable and reset everything in the antennas.

We also discovered a signal level problem associated with the IAT clock 
0.1pps signal.  After checking both units and discussions with Ken 
Sowinski, it was decided to have the operators swap the array over to the 
other IAT clock. I will talk to Wayne Koski tomorrow about what is wrong 
with the one unit and a possible minor modification that may be needed in 
both of them.

Lastly, we replaced a T5 in Antenna 13 IF-A that was reporting excessively 
high synchronous detector readings.

Ken is said he will check the antennas during test time tomorrow morning.

Jim