KJ4CO
Active2x2District 4
Competitive callsign — 3 applications filed with the FCC.
License HolderLongbrake, Eugene H
License ClassAdvanced
Min. Class RequiredGeneral
LocationBig Bear Lake, CA
Grant DateNov 22, 2025
Expiration DateDec 5, 2034
KJ4CO is a highly sought-after 2x2 format amateur radio callsign. The license is currently held by Longbrake, Eugene H in Big Bear Lake, CA. This callsign has attracted significant interest in the amateur radio community, with 3 vanity applications filed with the FCC. The most recent was submitted by CHANDLER, JOHN E on Nov 17, 2014. KJ4CO has 5 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- .--- ....- -.-. ---
CW Weight: 41 units(Heavy (slower to send))
Voice Phonetics
Kilo Juliet Four Charlie Oscar
Readability: 7.5/10(High readability)
License History
- Administrative Update AppliedDec 1, 2025
- License RenewedNov 22, 2025
- License IssuedDec 5, 2014
- Vanity Callsign GrantedDec 5, 2014
- License ExpiredOct 25, 2007
Vanity Application Activity
Competing applications filed with the FCC for this callsign.