K4CSO
Active1x3District 4
Competitive callsign — 2 applications filed with the FCC.
License HolderOSBORNE, CHARLES S
License ClassAmateur Extra
Min. Class RequiredGeneral
LocationWINSTON SALEM, NC
Grant DateMay 12, 2020
Expiration DateJun 17, 2030
K4CSO is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by OSBORNE, CHARLES S in WINSTON SALEM, NC. 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 DAILY, DEL D on May 30, 2000. K4CSO has 6 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ....- -.-. ... ---
CW Weight: 34 units(Moderate)
Voice Phonetics
Kilo Four Charlie Sierra Oscar
Readability: 7.5/10(High readability)
License History
- License RenewedMay 12, 2020
- Administrative Update AppliedMay 10, 2019
- Administrative Update AppliedJul 6, 2017
- License RenewedMay 26, 2010
- Administrative Update AppliedAug 23, 2007
- License IssuedJun 17, 2000
Vanity Application Activity
Competing applications filed with the FCC for this callsign.