N1SDM
Active1x3District 1
Competitive callsign — 4 applications filed with the FCC.
License HolderSokolowski, Karen M
License ClassTechnician
Min. Class RequiredGeneral
LocationMead, WA
Grant DateJan 24, 2023
Expiration DateJan 24, 2033
N1SDM is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Sokolowski, Karen M in Mead, WA. 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 Morin, Seth D on Aug 7, 2026. N1SDM has 3 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-. .---- ... -.. --
CW Weight: 31 units(Moderate)
Voice Phonetics
November One Sierra Delta Mike
Readability: 7.5/10(High readability)
License History
- License IssuedJan 24, 2023
- Vanity Callsign GrantedJan 24, 2023
- License ExpiredJul 8, 2006
Vanity Application Activity
Competing applications filed with the FCC for this callsign.