Federal Aviation Administration Abbreviations and Acronyms

1. TX
   Transmitter
2. TXR
   Transmitter
3. UCP
   User Datagram Protocol
4. UD
   User Data
5. UDC
   Compute Udre Range Difference
6. UDP
   User Datagram Protocol
7. UDP
   User Diagram Protocol
8. UDR
   Compute UDRE
9. UDRE
   User Differential Range Error
10. UDRE
    User Differential Range Estimate
11. UE
    User Equipment
12. UEN
    Upper, East, North
13. UERE
    User Equivalent Range Error
14. UETF
    User Equipment Test Facility
15. UFIR
    Upper Flight Information Region
16. UHF
    Ultra High Frequency (470 – 890 MHz)
17. UIR
    Upper Flight Information Region
18. UIVE
    User Ionoshperic Vertical Error
19. UL
    Underwriter’s Laboratories
20. UP
    User Data Process (Network Layer)

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