Re: What say you, nanog re: Starlink vs 5G?

[Eric Kuhnke <eric.kuhnke () gmail com>]

Pretty much, with the addition that 10900 MHz to 12700 MHz has for a very
long time been historically reserved for Ku-band one-way and two-way
satellite data services talking to geostationary satellites.

The only thing that SpaceX is doing new here is talking to moving LEO
satellites with their phased array terminals.

Adding a terrestrial transmitter source mounted on towers and with CPEs
that stomps on the same frequencies as the last 20 years of existing two
way VSAT terminals throughout the US seems like a bad idea. Even if you
ignore the existence of Starlink, there's a myriad of low bandwidth but
critical SCADA systems out there and remote locations on ku-band two way
geostationary terminals right now.



On Thu, 23 Jun 2022 at 17:05, William Herrin <bill () herrin us> wrote:

> On Thu, Jun 23, 2022 at 3:12 PM Michael Thomas <mike () mtcc com> wrote:
> >
> https://www.cnn.com/2022/06/23/tech/spacex-dish-fcc-spectrum-scn/index.html
>
> The article is super light on technical detail but I think what
> they're saying is:
>
> The 12ghz spectrum has been allocated to satellite services which have
> very low power signals at the receiver. Both SpaceX and Dish have
> bands within 12ghz. Dish has asked for permission to use its 12ghz
> spectrum for 5G which has a relatively high power terrestrial signal.
> SpaceX is calling foul: the spectrum was allocated to low power
> satellite signals and high power signals don't play well near low
> power signals... particularly when a bunch of the transmitters are
> cheap consumer equipment that may bleed some of that power into
> adjacent spectrum.
>
> Now someone with more knowledge please tell me how close I got.
>
> Regards,
> Bill Herrin
>
> --
> William Herrin
> bill () herrin us
> https://bill.herrin.us/