KO0W
Active2x1District 0
Competitive callsign — 5 applications filed with the FCC.
License HolderBertsch, Steven J
License ClassAmateur Extra
Min. Class RequiredAmateur Extra
LocationRosemount, MN
Grant DateFeb 10, 2026
Expiration DateMar 24, 2036
KO0W is a highly sought-after 2x1 format amateur radio callsign. The license is currently held by Bertsch, Steven J in Rosemount, MN. 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 Bertsch, Steven J on Mar 6, 2006. KO0W has 5 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- --- ----- .--
CW Weight: 38 units(Moderate)
Voice Phonetics
Kilo Oscar Zero Whiskey
Readability: 8/10(High readability)
License History
- License RenewedFeb 10, 2026
- Administrative Update AppliedNov 21, 2020
- License RenewedDec 29, 2015
- License IssuedMar 24, 2006
- Vanity Callsign GrantedMar 24, 2006
Vanity Application Activity
Competing applications filed with the FCC for this callsign.