[evlatests] ea13 is radiating at L-band!

[Vivek Dhawan]

VOIP phones were found to be quite noisy, with a 25 MHz comb. Is the phone
off the hook at ea13? or is the converter box (not sure of the correct term)
doing some radiating?

http://www.aoc.nrao.edu/evla/geninfo/memoseries/evlamemo99.ps

On Sun, January 20, 2013 11:51, Rick Perley wrote:
|     The latest 'spectra sweep' shows clear evidence that ea13 is
| seriously polluting our spectrum at L-band.  In trolling through the
| spectra provided from the data, some baselines common to ea13 show
| strong RFI at multiples of 25 MHz, extending from ~1200 MHz through
| ~1500 MHz.  There are only a few baselines on which this comb is easily
| visible -- these are 13 with 9, 14, 24, 25, and 26.  All of these are
| antennas adjacent to 13!
|     It's quite clear from this that ea13 is probably the sole source of
| the interference.
|
|
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