[evlatests] Huge RFI in Ku-band

Dan Mertely dmertely at nrao.edu
Thu Mar 16 12:43:13 EDT 2017


Hi Rick.  We'll try to locate it.  We found the Ku-band tone reported
in early February by sequentially turning off each receiver until the
RFI went away.  I'd like to try the same simple technique on ea01,
maybe today if it doesn't disrupt observing or tests.
-Mert

On 3/16/2017 9:24 AM, Rick Perley wrote:
>     A holography test was done last night, using Ku-band.
>
>     Three enormous RFI spikes have been found:
>
>     on ea01, at 15418 MHz
>
>     on ea06, at 15566 MHz.
>
>     on ea16 at  15450 MHz.
>
>     All appear to be CW.  None is a multiple of 128 MHz.  All appear to
> be on during the whole of the run.
>
>     What's going on?
>
>
>     Rick
>
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