It would seem the article at space . com is a little misleading.
First off, the white paper describing the observations involves the use of "an
array of 256 low frequency bowtie antennas," (not dishes as indicated in the
article) at two relatively 'low' frequencies of 137 MHz and 159.4 MHz.
The first frequency is an intentional 'radiator' used for Starlink position
control and the second is observed, much weaker 'noise' coming from some
Starlink sats. Later versions of Starlink sats show lower levels of this noise.
Starlink seems to be working with these people too, to assure peaceful
co-existence in the radio spectrum.
The actual paper can be found at the link below under 'Download Paper' on the
upper right side of the screen then click on Download PDF.
https://arxiv.org/abs/2309.15672
de AA5CT Jim
On Friday, October 20, 2023, 11:03:13 AM GMT-5, Dave (NK7Z) <dave@nk7z.net>
wrote:
https://www.space.com/new-radio-telescope-unmask-ancient-universe-satellites-ruin-view
It seems the Starlink birds are causing RFI... I wonder if they fall
under Part 15.103(a)? :)
--
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist, RFI
ARRL Asst. Director, NW Division, Technical Resources
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