KR4JFK
Active2x3District 4
No competing applications on record.
License HolderDahlke, John R
License ClassTechnician
Min. Class RequiredTechnician
LocationYucaipa, CA
Grant DateJan 28, 2026
Expiration DateJan 28, 2036
KR4JFK is a 2x3 format amateur radio callsign. It is currently registered to Dahlke, John R in Yucaipa, CA. There are currently no competing vanity applications or pending FCC filings on record for this callsign. Add it to your watchlist to receive an immediate alert if another operator files a vanity application.
CW & Voice Analysis
Morse Code
-.- .-. ....- .--- ..-. -.-
CW Weight: 42 units(Heavy (slower to send))
Voice Phonetics
Kilo Romeo Four Juliet Foxtrot Kilo
Readability: 6.5/10(Good readability)
License History
- Administrative Update AppliedJan 30, 2026
- System-Generated GrantJan 28, 2026
- License IssuedJan 28, 2026
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
No competing applications on record. Verify on the FCC ULS application search before filing.