KJ4JSF
Cancelled2x3District 4
No competing applications on record.
License HolderBurka II, Charles G
License ClassTechnician
Min. Class RequiredTechnician
LocationTulsa, OK
Grant DateDec 4, 2018
Cancellation DateOct 14, 2026
Available for ApplicationsOct 15, 2028
KJ4JSF is a 2x3 format amateur radio callsign. It is currently registered to Burka II, Charles G in Tulsa, OK. 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: 43 units(Heavy (slower to send))
Voice Phonetics
Kilo Juliet Four Juliet Sierra Foxtrot
Readability: 6/10(Good readability)
Available Oct 15, 2028 (718 days remaining)
Requires Technician license or higher to apply for this callsign format (2x3).
License History
- License CanceledOct 14, 2026
- License ModifiedFeb 25, 2025
- Administrative Update AppliedMar 31, 2020
- Authorization PrintedDec 7, 2018
- Internal Duplicate RequestedDec 6, 2018
- Internal Correction AppliedDec 6, 2018
- Internal Correction AppliedDec 6, 2018
- License RenewedDec 4, 2018
- License RenewedDec 4, 2018
- License ModifiedFeb 23, 2010
- License IssuedFeb 23, 2009
- System-Generated Grant
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.