[Bronze_Colossus]

The United States do not have the ability to degrade or deny a gps signal based on location unless that particular location has a physical GPS jammer. I don't see what the US would gain from disrupting civilian airtraffic navigation. Just stop with your "either is a likely cause here"-spiel.

[mike_d]

> The United States do not have the ability to degrade or deny a gps signal based on location

This was a feature designed into GPS from the beginning. They just stop transmitting the C/A code from satellites visible to the battlespace and a device can't bootstrap or maintain a location fix. Approved devices entering the battlespace (say a ballistic missile fired from a ship over the horizon) can continue to maintain high precision location using the P code.

Block III sattelites have also started transmitting M code, which is a second generation of military only GPS that claims to be unjammable and unspoofable.

[octoberfranklin]

In a major departure from previous GPS designs, the M-code is intended to be broadcast from a high-gain directional antenna, in addition to a wide angle (full Earth) antenna. The directional antenna's signal, termed a spot beam, is intended to be aimed at a specific region (i.e., several hundred kilometers in diameter) and increase the local signal strength by 20 dB (10× voltage field strength, 100× power). A side effect of having two antennas is that, for receivers inside the spot beam, the GPS satellite will appear as two GPS signals occupying the same position.

https://en.m.wikipedia.org/wiki/GPS_Block_III#Military_(M-co...

[T-A]

That's an ability to improve service for users of M-code receivers, which AFAIK are only available to the military (and it's new technology, so I'd expect it to be unsupported even by most military receivers currently in use).

[lizardactivist]

Explain why only the "Russia did it"-spiel is allowed here.

[CRConrad]

> Explain why only the "Russia did it"-spiel is allowed here.

Because

A) Absolutely nobody fucking else would have any reason to? and/or

B) They're the one with a decades-long habit of doing shit like that? but,

C) Hey, "allowed"?!? Is anyone deleting your alternative (=P-burg Factory) "spiels"? only,

D) Be prepared for them to be laughed all to Hell like they deserve. and...

E) ...to be categorised as a Putler-propaganda troll. To paraphrase a great philosopher, Putler-troll is as Putler-troll does.