[evlatests] Switched power failure, ea14, X-band
Vivek Dhawan
vdhawan at nrao.edu
Mon Nov 5 18:18:39 EST 2018
The noise diode on ea14 X band is dead. The LNAs are good, Tsys
is 30K-ish and data are fine. Front end will it replace when a
spare is ready.
On Mon, November 5, 2018 15:23, Rick Perley wrote:
| Â Â Â I'm analyzing data from a science/calibration run, taken last
| Friday. The bands observed were X, Ku, K, Ka, and Q. A single failure
| in switched power is seen:
|
| Â Â Â Â Â *Â ea14 at X-band has no detectable 'PDif' -- only random noise
| in the level of a few millicounts is seen.
|
|    All other antennas are fine at the observed bands. (Antennas 13,
| 19 and 26 were out).
|
|
|
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