K4SOW
Active1x3District 4
Competitive callsign — 2 applications filed with the FCC.
License HolderCHOCHOLEK, CHRISTOPHER V
License ClassTechnician
Min. Class RequiredGeneral
LocationCHICAGO, IL
Grant DateMar 3, 2020
Expiration DateMar 3, 2030
K4SOW is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by CHOCHOLEK, CHRISTOPHER V in CHICAGO, IL. 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 Pegues, Charles M on Mar 4, 2025. K4SOW has 4 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ....- ... --- .--
CW Weight: 33 units(Moderate)
Voice Phonetics
Kilo Four Sierra Oscar Whiskey
Readability: 7.5/10(High readability)
License History
- Administrative Update AppliedJul 26, 2022
- Administrative Update AppliedJul 26, 2022
- License IssuedMar 3, 2020
- Vanity Callsign GrantedMar 3, 2020
Vanity Application Activity
Competing applications filed with the FCC for this callsign.