K4FUU
Active1x3District 4
Competitive callsign — 1 application filed with the FCC.
License HolderGudger, David T
License ClassAmateur Extra
Min. Class RequiredGeneral
LocationWarwick, MD
Grant DateDec 30, 2025
Expiration DateJan 24, 2036
K4FUU is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Gudger, David T in Warwick, MD. This callsign has attracted significant interest in the amateur radio community, with 1 vanity application filed with the FCC. The most recent was submitted by Gudger, David T on Jan 5, 2006. K4FUU has 6 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ....- ..-. ..- ..-
CW Weight: 30 units(Light (fast to send))
Voice Phonetics
Kilo Four Foxtrot Uniform Uniform
Readability: 7/10(Good readability)
License History
- License RenewedDec 30, 2025
- License RenewedDec 16, 2015
- Administrative Update AppliedOct 15, 2014
- Administrative Update AppliedOct 5, 2011
- License IssuedJan 24, 2006
- Vanity Callsign GrantedJan 24, 2006
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
- Gudger, David TFiled Jan 5, 2006Not awardedFCC ↗