[evlatests] minor oddity in middle sub-band of Feb9 wicloopctr

Terry Cotter tcotter at nrao.edu
Thu Feb 11 15:44:00 EST 2010


I suspect there may be other birdies of the 4.864 GHz "type" around. 
This one is the 38th harmonic of 128 MHz. 4.879 GHz I do not know about.

Steven T. Myers wrote:
> On Wed, 10 Feb 2010, Steven T. Myers wrote:
> 
>> There is another feature out near channel 120 also.
> 
> The second sub-band ch 120 (121 AIPS, 4.864GHz) birdie is there in both
> RR and LL for many (all?) antennas.  There is another one like
> that, but weaker, in the third sub-band channel 7 (8 in AIPS, 4.879GHz).
> 
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