[evlatests] ea20 summary -- update

Ken Sowinski ksowinsk at nrao.edu
Tue Dec 15 18:28:50 EST 2009


On Fri, 11 Dec 2009, Ken Sowinski wrote:

> Problems:
> No power in the T304s from K band.

K band now works and delays are being set.

> Phases still change every 10 seconds.  Both IF pairs change
> at the same time and by the same amount.  Is the L305 not
> providing heartbeat to the L302s?

This was fixed by swapping the polarity of the RS-485 heartbeat
to the L302s.

> No cals at both C and X bands.  This too might be the L305.

Cals are present now at all bands.


X band pointing will be done tonight.




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