W4JKJ
Active1x3District 4
Competitive callsign — 4 applications filed with the FCC.
License HolderJackson, John K
License ClassAmateur Extra
Min. Class RequiredGeneral
LocationPalm Beach Gardens, FL
Grant DateJan 21, 2026
Expiration DateMar 17, 2036
W4JKJ is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Jackson, John K in Palm Beach Gardens, FL. This callsign has attracted significant interest in the amateur radio community, with 4 vanity applications filed with the FCC. The most recent was submitted by Jackson, John K on Feb 27, 2006. W4JKJ has 7 recorded FCC license history events.
CW & Voice Analysis
Morse Code
.-- ....- .--- -.- .---
CW Weight: 41 units(Heavy (slower to send))
Voice Phonetics
Whiskey Four Juliet Kilo Juliet
Readability: 7/10(Good readability)
License History
- License RenewedJan 21, 2026
- Administrative Update AppliedDec 18, 2018
- License RenewedJan 8, 2016
- License ModifiedJul 8, 2013
- License ModifiedMar 24, 2008
- License IssuedMar 17, 2006
- Vanity Callsign GrantedMar 17, 2006
Vanity Application Activity
Competing applications filed with the FCC for this callsign.