KO6SLD
Active2x3District 6
Competitive callsign — 1 application filed with the FCC.
License HolderChu, Randolph
License ClassGeneral
Min. Class RequiredTechnician
LocationArcadia, CA
Grant DateJun 1, 2024
Expiration DateJun 1, 2034
KO6SLD is a highly sought-after 2x3 format amateur radio callsign. The license is currently held by Chu, Randolph in Arcadia, CA. This callsign has attracted significant interest in the amateur radio community, with 1 vanity application filed with the FCC. The most recent was submitted by Chu, Randolph on May 14, 2024. KO6SLD has 3 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- --- -.... ... .-.. -..
CW Weight: 37 units(Moderate)
Voice Phonetics
Kilo Oscar Six Sierra Lima Delta
Readability: 7/10(Good readability)
License History
- Administrative Update AppliedDec 17, 2025
- License IssuedJun 1, 2024
- Vanity Callsign GrantedJun 1, 2024
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
- Chu, RandolphFiled May 14, 2024Not awardedFCC ↗