I can confirm that spoofing with “non-milspec” methods don’t seem to work against the receiver in the Starlink terminal. I tried with a HackRF and a USRP and it didn’t work, while an Android phone was spoofed fine. I was however able to jam the receiver with very moderate power levels and a sweep generated with a HackRF Portapack and patch antenna.

Best,

Mike
On Jan 1, 2023 at 17:23 +0100, Benjamin Henrion via Starlink <starlink@lists.bufferbloat.net>, wrote:
> > Le dim. 1 janv. 2023 à 12:49, Oleg Kutkov via Starlink <starlink@lists.bufferbloat.net> a écrit :
> > > Hi,
> > >
> > > Starlink has a multisystem GNSS receiver with data filtering, so it
> > > can't be fooled with the single HackRF (i tested it).
>
> Here they describe another method with gps jammers:
>
> https://gpspatron.com/spoofing-a-multi-band-rtk-gnss-receiver-with-hackrf-one-and-gnss-jammer/
>
> > >
> > > I experimented with NMEA data injected directly into the Dishy operating
> > > system, so I can tell there is no way to cheat the system.
> > > Satellites know your location a wouldn't accept a connection from the
> > > client in an unexpected Cell. All connection slots for all clients and
> > > areas are scheduled.
> > >
> > > Besides this, Starlink requires valid and strict GNSS and 1PPS to sync
> > > the local clock, that's vital for the TDD system.
> > >
> > >
> > > On 1/1/23 13:18, Benjamin Henrion via Starlink wrote:
> > > > Hi,
> > > >
> > > > Just wondering if you could pay less by pretending to be in Colombia
> > > > by spoofing gps sats with a HackRF board:
> > > >
> > > > https://mobile.twitter.com/GeoffreyHuntley/status/1609490537484275712
> > > >
> > > > Best,
> > > >
> > > > _______________________________________________
> > > > Starlink mailing list
> > > > Starlink@lists.bufferbloat.net
> > > > https://lists.bufferbloat.net/listinfo/starlink
> > >
> > > --
> > > Best regards,
> > > Oleg Kutkov
> > >
> > > _______________________________________________
> > > Starlink mailing list
> > > Starlink@lists.bufferbloat.net
> > > https://lists.bufferbloat.net/listinfo/starlink
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