W4MBU
Active1x3District 4
Competitive callsign — 2 applications filed with the FCC.
License HolderMARTINEZ JR, MAURICIO C
License ClassGeneral
Min. Class RequiredGeneral
LocationMIAMI, FL
Grant DateFeb 14, 2017
Expiration DateFeb 14, 2027
W4MBU is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by MARTINEZ JR, MAURICIO C in MIAMI, FL. This callsign has attracted significant interest in the amateur radio community, with 2 vanity applications filed with the FCC. The most recent was submitted by Baricevich, Michael S on Jul 18, 2024. W4MBU has 4 recorded FCC license history events.
CW & Voice Analysis
Morse Code
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CW Weight: 31 units(Moderate)
Voice Phonetics
Whiskey Four Mike Bravo Uniform
Readability: 8/10(High readability)
License History
- Administrative Update AppliedFeb 26, 2022
- Administrative Update AppliedDec 22, 2021
- License IssuedFeb 14, 2017
- Vanity Callsign GrantedFeb 14, 2017
Vanity Application Activity
Competing applications filed with the FCC for this callsign.