AJ4OI
Active2x2District 4
Competitive callsign — 2 applications filed with the FCC.
License HolderStapleton, Michael A
License ClassAmateur Extra
Min. Class RequiredGeneral
LocationHARRODSBURG, KY
Grant DateOct 10, 2018
Expiration DateNov 12, 2028
AJ4OI is a highly sought-after 2x2 format amateur radio callsign. The license is currently held by Stapleton, Michael A in HARRODSBURG, KY. 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 KREITZ, RICHARD C on May 8, 2000. AJ4OI has 3 recorded FCC license history events.
CW & Voice Analysis
Morse Code
.- .--- ....- --- ..
CW Weight: 32 units(Moderate)
Voice Phonetics
Alpha Juliet Four Oscar India
Readability: 7/10(Good readability)
License History
- License RenewedOct 10, 2018
- License IssuedFeb 19, 2009
- System-Generated GrantFeb 19, 2009
Vanity Application Activity
Competing applications filed with the FCC for this callsign.