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BenjiWiebe01/20/20251 replyview on HN

Doesn't ADS-B get the location from GNSS?


Replies

jcims01/21/2025

Yes it does, but unless we’re talking an entire system failue the GNSS denial does tend to have limits in range. I’ve picked up ADSB traffic from well over 200km with a simple ground antenna, so if you’re in the fringes in could be a useful additional signal for similar reasons to the satellites.

Just spitballing though really.