K0RSO
Active1x3District 0
No competing applications on record.
License HolderSCHAEFER, DONALD L
License ClassAmateur Extra
Min. Class RequiredGeneral
LocationPhoenix, AZ
Grant DateJul 5, 2025
Expiration DateSep 21, 2035
K0RSO is a 1x3 format amateur radio callsign. It is currently registered to SCHAEFER, DONALD L in Phoenix, AZ. There are currently no competing vanity applications or pending FCC filings on record for this callsign. Add it to your watchlist to receive an immediate alert if another operator files a vanity application.
CW & Voice Analysis
Morse Code
-.- ----- .-. ... ---
CW Weight: 39 units(Moderate)
Voice Phonetics
Kilo Zero Romeo Sierra Oscar
Readability: 6.5/10(Good readability)
License History
- License RenewedJul 5, 2025
- Administrative Update AppliedAug 18, 2020
- License RenewedJun 30, 2015
- Administrative Update AppliedJan 29, 2014
- Administrative Update AppliedFeb 3, 2010
- Administrative Update AppliedAug 8, 2006
- FRN Association Letter SentSep 21, 2005
- License RenewedSep 21, 2005
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
No competing applications on record. Verify on the FCC ULS application search before filing.