W0SDR
Active1x3District 0
Competitive callsign — 2 applications filed with the FCC.
License HolderLangenhuysen, Robert G
License ClassAmateur Extra
Min. Class RequiredGeneral
LocationDurham, NC
Grant DateAug 8, 2018
Expiration DateAug 8, 2028
W0SDR is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Langenhuysen, Robert G in Durham, NC. This callsign has attracted significant interest in the amateur radio community, with 2 vanity applications filed with the FCC. The most recent was submitted by Rome, Scott on Jan 14, 2025. W0SDR has 5 recorded FCC license history events.
CW & Voice Analysis
Morse Code
.-- ----- ... -.. .-.
CW Weight: 35 units(Moderate)
Voice Phonetics
Whiskey Zero Sierra Delta Romeo
Readability: 6.5/10(Good readability)
License History
- Administrative Update AppliedJan 13, 2026
- License RenewedAug 8, 2018
- Administrative Update AppliedApr 18, 2015
- License IssuedJul 25, 2008
- Vanity Callsign GrantedJul 25, 2008
Vanity Application Activity
Competing applications filed with the FCC for this callsign.