On 2/5/24 03:51, Bob Ecclestone wrote:
I
would have thought that a basic normal GPS receiver (like a Garmin
Etrex, etc) would be able to determine GPS satellite coverage and
if the?reported position is erratic, suspect jamming or spoofing.
I expect it depends on the details of the jamming or spoofing. It
might be jamming as simple as a broadband noise source, or it
might be an sophisticated spoofing signal that slowly drives the
apparent position of a military user off by a great distance. Or
something in between.
Commercial airliners have problems with GPS, and I would hope
they have better receivers than do us consumers who paid maybe
only a hundred-ish bucks for a GPS receiver. If so, your Etrex is
not immune.
-kb