K4USW
Active1x3District 4
Competitive callsign — 1 application filed with the FCC.
License HolderHumelsine, Katherine L
License ClassGeneral
Min. Class RequiredGeneral
LocationIslamorada, FL
Grant DateJan 24, 2018
Expiration DateJan 24, 2028
K4USW is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Humelsine, Katherine L in Islamorada, 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 Humelsine, Katherine L on Apr 2, 2007. K4USW has 4 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ....- ..- ... .--
CW Weight: 29 units(Light (fast to send))
Voice Phonetics
Kilo Four Uniform Sierra Whiskey
Readability: 7/10(Good readability)
License History
- License RenewedJan 24, 2018
- License ModifiedJul 9, 2007
- License IssuedApr 20, 2007
- Vanity Callsign GrantedApr 20, 2007
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
- Humelsine, Katherine LFiled Apr 2, 2007Not awardedFCC ↗