I thought that was the cover story. They deliberately used a channel partially in the bandwidth for some deniability. It isn’t like they didn’t know what bandwidth GPS used when they designed the satellite.
If I recall correctly, the idea was that they might have used that part of the band deliberately so that it couldn’t be jammed without also jamming GPS. Either way, we’re just guessing.
I thought that was the cover story. They deliberately used a channel partially in the bandwidth for some deniability. It isn’t like they didn’t know what bandwidth GPS used when they designed the satellite.
If I recall correctly, the idea was that they might have used that part of the band deliberately so that it couldn’t be jammed without also jamming GPS. Either way, we’re just guessing.