GPS-2 (Navstar-2) - Gunter's Space Page
GPS Block IIF - Wikipedia
GPS (Navstar) - Gunter's Space Page
SES moves to double its US government footing through acquisition - Washington Technology
Stanford University 1 GPS Signals: Present and Future L1, L2, and L5—L5 in Block 2F satellites. - ppt download
Foto di lancio: il satellite GPS dell'aeronautica vola in orbita - Notizia
Sept 2010 Electronics Column - Power & Motoryacht
GPS satellite blocks - Wikipedia
Despite low thrust, Delta 4 boosts GPS satellite into orbit (UPDATED) | Space News, Military Space, Commercial Space
SpaceX Delivers 5th GPS Block III Space Force Satellite to Orbit - AmericaSpace
Navstar: GPS Satellite Network | Space
ULA Atlas-V Launch of GPS IIF-12 Ends Series with 7 GPS Satellites Launched in 21 Months - AmericaSpace
ULA Firm On No Bid Face-off With USAF on RD-180 and GPS-III Launch Procurement Policy – AmericaSpace
Newest GPS satellite goes into service – Spaceflight Now
GPS satellite blocks - Wikipedia
As GPS 3 launch nears, Air Force keeps watchful eye on ground controls - SpaceNews
Delta 4 launches on moonlit night with GPS 2F-2
GPS Block 2 and 2A
GPS Block IIF – Spacecraft & Satellites
GPS Block IIF – Spacecraft & Satellites
Spaceflight Now on Twitter: "The GPS Block 2F-9 satellite has been put into orbit by Delta 4! http://t.co/Jc1dXFsehQ http://t.co/nYufUtjpuh" / Twitter
