[evlatests] New L-band RFI?

[Vivek Dhawan]

It is neatly caught by Mert's new W8 monitor which has been online since late 
February.

This appears to be a daily phenomenon, a burst around 11am and another at 3pm.
No bursts on March 1 and a couple days before. Even earlier, there are one or
2 bursts, usually in daytime. Maybe a new pest got tested and deployed?


On 03/05/2015 09:56 AM, Rick Perley wrote:
>      I have long been using 1820/128 MHz as a 'safe' L-band SPW for testing.  It
> has always been clean of RFI.  But not yesterday. During a late afternoon test
> of the OTF modes, this SPW was completely wiped out by a pair of RFI tones, at:
>
>      1804.0 and 1830.0 MHz.
>
>      These were seen equally on all baselines and both polarizations. They were
> strong enough to completely trash the switched power calibration.  All
> autocorrelations were blanked out for that SPW. They don't look to me like an
> external signal ... but this is a purely subjective opinion.
>
>      The other SPW (1445 MHz) was fine.
>
>
>
>
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