W4BTF
Active1x3District 4
Competitive callsign — 4 applications filed with the FCC.
License HolderTURNBILL, JOHN A
License ClassAmateur Extra
Min. Class RequiredGeneral
LocationHARRIMAN, TN
Grant DateJun 17, 2026
Expiration DateSep 7, 2036
W4BTF is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by TURNBILL, JOHN A in HARRIMAN, TN. This callsign has attracted significant interest in the amateur radio community, with 4 vanity applications filed with the FCC. The most recent was submitted by Spear, Milford R on Dec 7, 2020. W4BTF has 5 recorded FCC license history events.
CW & Voice Analysis
Morse Code
.-- ....- -... - ..-.
CW Weight: 29 units(Light (fast to send))
Voice Phonetics
Whiskey Four Bravo Tango Foxtrot
Readability: 8/10(High readability)
License History
- License RenewedJun 17, 2026
- Administrative Update AppliedJan 8, 2026
- License IssuedSep 7, 2016
- Vanity Callsign GrantedSep 7, 2016
- License ExpiredDec 18, 2008
Vanity Application Activity
Competing applications filed with the FCC for this callsign.