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0 pointsLammy3d ago0 comments

> Wi-Wi stands for Wireless 2Way interferometry

> 2Way

Does that mean you won't get to know the time unless you let them spy on your physical location too? That's what the diagram implies: https://www.gps.gov/sites/default/files/2025-06/CGSICMeeting...

GNSS time is still cooler because you can have extremely accurate time and a reading of your position without the broadcasting satellites knowing you're there.

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bigfatkitten3d ago

There are lots of situations where GNSS isn’t available, especially in broadcasting.

A live event in a convention center for example. You might have a truck outside with GNSS, but it’s blocked inside by the building.

LammyOP3d ago

I would rather not know the exact time than be spied on.

wildzzz3d ago

It's not for you. It's for a broadcasting team so all of the wireless camera feeds are properly synced.

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ianburrell2d ago

Why do you think it could spy on you? Wi-Wi looks like has transmitters on 900MHz broadcasting the accurate time. It is like GPS but inside building.

reed12343d ago

They’re comparing it to GPS which also uses multi-lateration (multiple measurements of time/distance) for positioning based off the known positions of satellites.

In this case it is only figuring out the distance from the other receivers for time synchronization and not positioning you on the globe.

PowerElectronix3d ago

I think it only needs the travel time of the signal, but it's not well explained.

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