737 GPS Interference

This covers the topical subject of GPS Interference, such as jamming and spoofing which is prevalent in areas of conflict or tension such as Ukraine, Syria, Israel and the NATO border with Russia. Although GPS interference is aimed at downgrading military capability it also affects commercial air transport. In this video I describe how the 737 navigates, how GPS works, what effects can be seen during interference and what measures can be taken to mitigate these effects..
Contents:
2:02 FMC Position
10:55 Radio Position
17:56 IRS Position
31:58 GPS Background & Theory
49:29 GPS Equipment
1:00:03 GPS Interference
1:26:52 Hybrid GPS-Inertial