K1US
Active1x2District 1
Competitive callsign — 7 applications filed with the FCC.
License HolderMueller-Harder, Erik D
License ClassAmateur Extra
Min. Class RequiredAmateur Extra
LocationCabot, VT
Grant DateJun 6, 2017
Expiration DateAug 11, 2027
K1US is a highly sought-after 1x2 format amateur radio callsign. The license is currently held by Mueller-Harder, Erik D in Cabot, VT. This callsign has attracted significant interest in the amateur radio community, with 7 vanity applications filed with the FCC. The most recent was submitted by Jones, Edward on Apr 22, 2026. K1US has 8 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- .---- ..- ...
CW Weight: 28 units(Light (fast to send))
Voice Phonetics
Kilo One Uniform Sierra
Readability: 7.5/10(High readability)
License History
- License RenewedJun 6, 2017
- License IssuedAug 11, 2007
- Vanity Callsign GrantedAug 11, 2007
- Internal Correction AppliedAug 1, 2007
- Internal Correction AppliedAug 1, 2007
- Administrative Update AppliedFeb 9, 2006
- License RenewedApr 25, 2001
- License ModifiedJan 7, 2000
Vanity Application Activity
Competing applications filed with the FCC for this callsign.