[evlatests] Fwd: Ku-band RFI

[Lorant Sjouwerman]

Are you sure about your 640MHz off, and not 1GHz?

DirectTV is exactly 1 GHz above your numbers (18.327-18.648, you missed 
the one at .487) and hangs around about 103W

https://www.lyngsat.com/T10-T12.html


On 8/7/21 11:19 AM, rperley via evlatests wrote:
> Oops -- all the numbers listed in the prior report are low by 640 MHz.
>
> The correct values are below:
>
> -------- Original Message --------
> Subject: [evlatests] Ku-band RFI
> Date: 2021-08-07 13:13
> From: rperley via evlatests <evlatests at listmgr.nrao.edu>
> To: evlatests at nrao.edu
> Reply-To: rperley <rperley at nrao.edu>
>
> Interesting RFI is seen at the high end of Ku-band -- certainly not 
> new, but may be worth noting again.
>
> Eight bands, each 32 MHz wide, centered at:
> 17326, 17366, 17406, 17446, 17528, 17568 17608 and 17648 MHz.
>
> Note these are two blocks, each with four equally-spaced band of 
> separation 40 MHz
>
> Almost certainly associated with geosynchronous satellites.
>
> It would be interesting to know what these are.
>
> Rick
>
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Regards,

Lorant Sjouwerman - Scientific Services -lsjouwerman at nrao.edu
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