Federal Aviation Administration Abbreviations and Acronyms

1. UPC
   User Position Computation
2. UPM
   User Position Monitor
3. UPM
   UT1 and Polar Motion
4. UPS
   Uninterruptible Power Supply
5. URA
   User Range Accuracy
6. URE
   User Range Error
7. URSI
   International Radio Science Union
8. US
   United States
9. US FAR
   Federal Aviation Regulations
10. US/U.S.
    United States
11. USA
    United States
12. USAF
    United States Air Force
13. USC
    United States Code
14. USCG
    United States Coast Guard
15. USGS
    United States Geological Survey
16. UTC
    Universal Time Coordinated
17. UTP
    Unshielded Twisted Pair
18. UUT
    Unit Under Test
19. UW
    Unique Word
20. UX
    Uninterruptible Power Supply

Last updated: September 10, 2020 — Total entries: 2,563