W3STU
Active1x3District 3
Competitive callsign — 4 applications filed with the FCC.
License HolderSHAPIRO, CAROL J
License ClassTechnician
Min. Class RequiredGeneral
LocationAUBURN, CA
Grant DateFeb 10, 2022
Expiration DateMar 19, 2032
W3STU is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by SHAPIRO, CAROL J in AUBURN, CA. 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 Buchanan, Kristopher R on Jul 7, 2025. W3STU has 6 recorded FCC license history events.
CW & Voice Analysis
Morse Code
.-- ...-- ... - ..-
CW Weight: 27 units(Light (fast to send))
Voice Phonetics
Whiskey Three Sierra Tango Uniform
Readability: 7/10(Good readability)
License History
- License RenewedFeb 10, 2022
- Administrative Update AppliedSep 27, 2013
- License RenewedMar 15, 2012
- Administrative Update AppliedOct 9, 2008
- License IssuedMar 19, 2002
- Vanity Callsign GrantedMar 19, 2002
Vanity Application Activity
Competing applications filed with the FCC for this callsign.