NK4O
Active2x1District 4
Competitive callsign — 5 applications filed with the FCC.
License HolderCalhoun, John C
License ClassGeneral
Min. Class RequiredAmateur Extra
LocationCoral Springs, FL
Grant DateFeb 8, 2022
Expiration DateMay 3, 2032
NK4O is a highly sought-after 2x1 format amateur radio callsign. The license is currently held by Calhoun, John C in Coral Springs, FL. This callsign has attracted significant interest in the amateur radio community, with 5 vanity applications filed with the FCC. The most recent was submitted by STOCKTON IX, ANDREW J on Apr 15, 2002. NK4O has 6 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-. -.- ....- ---
CW Weight: 27 units(Light (fast to send))
Voice Phonetics
November Kilo Four Oscar
Readability: 8/10(High readability)
License History
- License RenewedFeb 8, 2022
- License RenewedMar 22, 2012
- License ModifiedMar 21, 2012
- License IssuedMay 3, 2002
- Vanity Callsign GrantedMay 3, 2002
- License CanceledMar 28, 2000
Vanity Application Activity
Competing applications filed with the FCC for this callsign.