K0RTB
Active1x3District 0
Competitive callsign — 3 applications filed with the FCC.
License HolderBohrer, Robert T
License ClassAmateur Extra
Min. Class RequiredGeneral
LocationCosmos, MN
Grant DateAug 29, 2025
Expiration DateMar 25, 2035
K0RTB is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Bohrer, Robert T in Cosmos, MN. This callsign has attracted significant interest in the amateur radio community, with 3 vanity applications filed with the FCC. The most recent was submitted by Brelsford, richard t on Jul 8, 2019. K0RTB has 4 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ----- .-. - -...
CW Weight: 36 units(Moderate)
Voice Phonetics
Kilo Zero Romeo Tango Bravo
Readability: 7/10(Good readability)
License History
- License RenewedAug 29, 2025
- License RenewedDec 31, 2014
- License IssuedMar 25, 2005
- Vanity Callsign GrantedMar 25, 2005
Vanity Application Activity
Competing applications filed with the FCC for this callsign.