K5AI
Active1x2District 5
Competitive callsign — 21 applications filed with the FCC.
License HolderHelmke, Martin F
License ClassAmateur Extra
Min. Class RequiredAmateur Extra
LocationWest Chester, PA
Grant DateMar 14, 2025
Expiration DateMar 14, 2035
K5AI is a highly sought-after 1x2 format amateur radio callsign. The license is currently held by Helmke, Martin F in West Chester, PA. This callsign has attracted significant interest in the amateur radio community, with 21 vanity applications filed with the FCC. The most recent was submitted by NADEAU, ERIC C on Apr 16, 2025. K5AI has 9 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ..... .- ..
CW Weight: 18 units(Ultra-light (very fast to send))
Voice Phonetics
Kilo Five Alpha India
Readability: 8/10(High readability)
License History
- License RenewedMar 14, 2025
- Vanity Callsign GrantedFeb 7, 2015
- License IssuedFeb 7, 2015
- License ExpiredJan 21, 2015
- Administrative Update AppliedMar 24, 2007
- Vanity Callsign GrantedJan 17, 2003
- License IssuedJan 17, 2003
- Internal Correction AppliedJan 2, 2003
- Internal Correction AppliedJan 2, 2003
Vanity Application Activity
Competing applications filed with the FCC for this callsign.