W4PDB
Active1x3District 4
Competitive callsign — 1 application filed with the FCC.
License HolderKNAPP, HERBERT J
License ClassGeneral
Min. Class RequiredGeneral
LocationROANOKE, TX
Grant DateNov 6, 2017
Expiration DateDec 12, 2027
W4PDB is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by KNAPP, HERBERT J in ROANOKE, TX. 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 Wilson, Paul K on Jul 14, 2026. W4PDB has 4 recorded FCC license history events.
CW & Voice Analysis
Morse Code
.-- ....- .--. -.. -...
CW Weight: 33 units(Moderate)
Voice Phonetics
Whiskey Four Papa Delta Bravo
Readability: 8/10(High readability)
License History
- License RenewedNov 6, 2017
- License ModifiedJul 6, 2012
- License RenewedDec 12, 2007
- FRN Association Letter SentDec 12, 2007
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
- Wilson, Paul KFiled Jul 14, 2026Not awardedFCC ↗