K7JKU
Active1x3District 7
Competitive callsign — 4 applications filed with the FCC.
License HolderSublette, Matthew C
License ClassTechnician
Min. Class RequiredGeneral
LocationMarana, AZ
Grant DateApr 10, 2026
Expiration DateApr 15, 2036
K7JKU is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Sublette, Matthew C in Marana, AZ. 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 MEARS, SCOTT on Sep 23, 2020. K7JKU has 5 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- --... .--- -.- ..-
CW Weight: 38 units(Moderate)
Voice Phonetics
Kilo Seven Juliet Kilo Uniform
Readability: 6.5/10(Good readability)
License History
- License RenewedApr 10, 2026
- Administrative Update AppliedJan 3, 2020
- Administrative Update AppliedAug 31, 2017
- License IssuedApr 15, 2016
- Vanity Callsign GrantedApr 15, 2016
Vanity Application Activity
Competing applications filed with the FCC for this callsign.