[evlatests] 24 and 26
Jim Jackson
jjackson at nrao.edu
Tue Nov 14 16:35:20 EST 2006
Antenna 26 has a bad M301 (MIB not communicating) so only x-band will work.
A new one was taken out today but rumor has it they haven't been able to
get on the antenna due to wind.
We'll have to investigate the 24BD problem, but I agree - from Ken's
description, it sounds like an L302-2
Jim
At 01:32 PM 11/14/2006, Ken Sowinski wrote:
>With the help of the operator I was able to look at G/T
>for all antennas including all the usable EVLA antennas.
>
>Antenna 24 BD is bad at bands, down by a factor of four
>or five in power from the AC side. In the past at X band
>I determined that this was not because of delays and that
>the bandpasses look normal. Since BD is affected, but
>not AC, and all bands are affected, it just about has to
>be the L302-2.
>
>Antenna 26 does not seem to want to work at L or K bands;
>it looks normal at X band. No attemp was made to diagnose
>this as Steve asked about it yesterday and said he would
>track it down.
>
>Antenna 23 BD still works.
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