K4HST
Active1x3District 4
Competitive callsign — 8 applications filed with the FCC.
License HolderRosenberger, Robin J
License ClassGeneral
Min. Class RequiredGeneral
LocationSHALIMAR, FL
Grant DateJan 21, 2026
Expiration DateJan 21, 2036
K4HST is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Rosenberger, Robin J in SHALIMAR, FL. This callsign has attracted significant interest in the amateur radio community, with 8 vanity applications filed with the FCC. The most recent was submitted by Rosenberger, Robin J on Jan 2, 2026. K4HST has 2 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ....- .... ... -
CW Weight: 24 units(Light (fast to send))
Voice Phonetics
Kilo Four Hotel Sierra Tango
Readability: 7.5/10(High readability)
License History
- License IssuedJan 21, 2026
- Vanity Callsign GrantedJan 21, 2026
Vanity Application Activity
Competing applications filed with the FCC for this callsign.