K1DIY
Active1x3District 1
Competitive callsign — 3 applications filed with the FCC.
License HolderOBrien, Liam
License ClassAmateur Extra
Min. Class RequiredGeneral
LocationSan Francisco, CA
Grant DateFeb 24, 2018
Expiration DateFeb 24, 2028
K1DIY is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by OBrien, Liam in San Francisco, CA. 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 OBrien, Liam on Feb 6, 2018. K1DIY has 6 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- .---- -.. .. -.--
CW Weight: 37 units(Moderate)
Voice Phonetics
Kilo One Delta India Yankee
Readability: 7.5/10(High readability)
License History
- Administrative Update AppliedApr 1, 2025
- Administrative Update AppliedJan 12, 2021
- Administrative Update AppliedMar 2, 2018
- License IssuedFeb 24, 2018
- Vanity Callsign GrantedFeb 24, 2018
- License ExpiredAug 15, 2006
Vanity Application Activity
Competing applications filed with the FCC for this callsign.