[evlatests] ea16 pointing

Vivek Dhawan vdhawan at nrao.edu
Tue Feb 1 13:03:01 EST 2011


A pn3db test on Jan31 showed all antennas working fine, including ea16.


Ken Sowinski wrote:
> There was a C band pointing run Friday night which was consistent
> with a good antenna that has a large pointing error.  After correcting
> the large errors an X band pointing run was done Saturday night.
> This confirmed the tilt deduced from the earlier C band measurement
> and provided X band collimations, but showed that ea16 had very large
> unmodeled pointing errors.
> 
> Is it possible that there is something wrong with the way the X band
> feed is mounted?  I will try to do a 3 dB tracking test soon to rule
> out periodic tracking errors.
> 
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