Originally Posted by
BoeingDriver99
And yet here we are.
Yes, indeed , it is because Spoofing is military electronic warfare and it evolves all the time to avoid countermeasures. . cat an mouse situation . As I understood it you have 2 sorts of " spoofers transmitters " shoulder made ones , limited range, point to point target , no going to affect a civil aircraft unless it is very close. Mostly used against drones. The other is much bigger and powerful, , vehicle based ,which can spoof you , but as a collateral damage not intended target. . That is what we see today in Iraq and in Tel Aviv FIR .
There is also a powerful navy version we saw that one in the North of Norway, most probably a test by the Russian navy Lot of fishing ships found suddenly themselves 30 NM in the mountains. and the local airline had to cancel many flights.
For ATC using ADS-B it can be a nightmare.
If you google GPS Spoofing on Images , you will see some photos of the equipment used.