K4MTR
Active1x3District 4
Competitive callsign — 7 applications filed with the FCC.
License HolderRidings, Mark T
License ClassAmateur Extra
Min. Class RequiredGeneral
LocationElizabethton, TN
Grant DateApr 9, 2026
Expiration DateJul 2, 2036
Competitive callsign — 7 applications filed with the FCC.
Morse Code
-.- ....- -- - .-.
CW Weight: 28 units(Light (fast to send))
Voice Phonetics
Kilo Four Mike Tango Romeo
Readability: 8/10(High readability)
Competing applications filed with the FCC for this callsign.