KO4YUM
Active2x3District 4
No competing applications on record.
License HolderROBERTSON, TOBIAS B
License ClassGeneral
Min. Class RequiredTechnician
LocationUhland, TX
Grant DateMar 21, 2022
Expiration DateMar 21, 2032
KO4YUM is a 2x3 format amateur radio callsign. It is currently registered to ROBERTSON, TOBIAS B in Uhland, TX. 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: 44 units(Heavy (slower to send))
Voice Phonetics
Kilo Oscar Four Yankee Uniform Mike
Readability: 7.5/10(High readability)
License History
- Administrative Update AppliedDec 18, 2025
- Administrative Update AppliedNov 21, 2023
- Administrative Update AppliedMay 19, 2023
- System-Generated GrantMar 21, 2022
- License IssuedMar 21, 2022
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.