KO4JSO
Active2x3District 4
No competing applications on record.
License HolderAmbrona, Juan M
License ClassTechnician
Min. Class RequiredTechnician
LocationMiami, FL
Grant DateNov 24, 2020
Expiration DateNov 24, 2030
KO4JSO is a 2x3 format amateur radio callsign. It is currently registered to Ambrona, Juan M in Miami, FL. 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: 45 units(Heavy (slower to send))
Voice Phonetics
Kilo Oscar Four Juliet Sierra Oscar
Readability: 6.5/10(Good readability)
License History
- System-Generated GrantNov 24, 2020
- License IssuedNov 24, 2020
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.