K4RDX
Active1x3District 4
Competitive callsign — 1 application filed with the FCC.
License HolderRare DX Club Of Florida
Min. Class RequiredGeneral
LocationHudson, FL
Grant DateApr 28, 2018
Expiration DateJun 2, 2028
K4RDX is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Rare DX Club Of Florida in Hudson, FL. 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 Cook, Aaron on Sep 2, 2026. K4RDX has 3 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ....- .-. -.. -..-
CW Weight: 32 units(Moderate)
Voice Phonetics
Kilo Four Romeo Delta X-ray
Readability: 7.5/10(High readability)
License History
- License RenewedApr 28, 2018
- License RenewedMar 18, 2008
- Administrative Update AppliedAug 25, 2006
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
- Cook, AaronFiled Sep 2, 2026Not awardedFCC ↗