[evlatests] New geostationary RFI band found ... in X-band

[Dan Mertely]

Hi Rick.  Yes, the commercial "Ku" band satellite downlink is from
10.7-12.7 GHz.  The strongest of these are those in the "Broadcast
Satellite Service" (BSS) which ranges from 12.2-12.7 GHz.  (Our very
own API utilizes one of the non-broadcast satellites in the lower
range, the SES-1 satellite, with a beacon we use @ 11.701 GHz.)

The breakdown of the space-to-earth (S2E) Ku band is:
10.7-11.7 GHz: (Fixed Satellite, S2E)+ (Terrestrial Fixed Microwave)
11.7-12.2 GHz: (Fixed Satellite, S2E)
12.2-12.7 GHz: (Fixed Broadcasting Satellite)
-Mert

On 7/11/2013 2:49 PM, Rick Perley wrote:
>      The flux density data have clear revealed another zone of
> significant RFI.  It is not seen on sources more than ~20 degrees from
> the 'Clarke Belt' declination, so I deduce that the source is likely a
> geostationary satellite.  It is only seen on a small fraction of scans
> of those sources within the 'danger zone' -- so I conclude that only
> one, or perhaps two satellites are present.  This RFI is nowhere near as
> strong as other geostationary downlinks.
>
>      The frequency band is from 10970 to 11200 MHz.
>
>      Dan:  Can you identify the source?
>
>
> _______________________________________________
> evlatests mailing list
> evlatests at listmgr.cv.nrao.edu
> http://listmgr.cv.nrao.edu/mailman/listinfo/evlatests
>