W0JMK
Active1x3District 0
Competitive callsign — 1 application filed with the FCC.
License HolderKLINKEFUS, JON M
License ClassAmateur Extra
Min. Class RequiredGeneral
LocationCEDAR RAPIDS, IA
Grant DateApr 14, 2026
Expiration DateApr 14, 2036
W0JMK is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by KLINKEFUS, JON M in CEDAR RAPIDS, IA. 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 KLINKEFUS, JON M on Mar 13, 2006. W0JMK has 4 recorded FCC license history events.
CW & Voice Analysis
Morse Code
.-- ----- .--- -- -.-
CW Weight: 45 units(Heavy (slower to send))
Voice Phonetics
Whiskey Zero Juliet Mike Kilo
Readability: 7.5/10(High readability)
License History
- License RenewedApr 14, 2026
- License RenewedFeb 16, 2016
- License IssuedMar 31, 2006
- Vanity Callsign GrantedMar 31, 2006
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
- KLINKEFUS, JON MFiled Mar 13, 2006Not awardedFCC ↗