Better photo of the GPS,... - The Boeing 737 Technical Site | Facebook
Esterline completes testing of GPS landing sensor unit for Boeing 737 | Aerospace Testing International
Humminbird 737 GPS Chartplotter Fish Finder Operators Manual User Instructions | eBay
NIB i-Blue 737 Bluetooth GPS Receiver | eBay
737-200 with GPS – PilotDreams.se
How is the Boeing 737NG Different From the Classic? Guest Blog Part 1 - AirlineReporter : AirlineReporter
Boeing 737 Flight Instruments
The 737 Handbook - Just past the IAF on an RNP AR approach you receive GPS-L INVALID followed by GPS-R INVALID (no GPS light is illuminated). Your ANP is 0.03 your RNP