N4SEM
Active1x3District 4
Competitive callsign — 3 applications filed with the FCC.
License HolderRosenberg, David
License ClassTechnician
Min. Class RequiredGeneral
LocationMonsey, NY
Grant DateOct 26, 2023
Expiration DateOct 26, 2033
N4SEM is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Rosenberg, David in Monsey, NY. This callsign has attracted significant interest in the amateur radio community, with 3 vanity applications filed with the FCC. The most recent was submitted by LENTZ, STEPHEN E on Nov 6, 2018. N4SEM has 9 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-. ....- ... . --
CW Weight: 21 units(Light (fast to send))
Voice Phonetics
November Four Sierra Echo Mike
Readability: 7.5/10(High readability)
License History
- License RenewedOct 26, 2023
- License ModifiedJun 6, 2018
- License ModifiedMay 16, 2018
- License RenewedSep 25, 2013
- Administrative Update AppliedOct 28, 2009
- Administrative Update AppliedApr 11, 2009
- Vanity Callsign GrantedSep 10, 2002
- License IssuedSep 10, 2002
- License ExpiredMar 2, 2000
Vanity Application Activity
Competing applications filed with the FCC for this callsign.