K9YRN
Active1x3District 9
Competitive callsign — 3 applications filed with the FCC.
License HolderBERTERMANN, RALPH E
License ClassGeneral
Min. Class RequiredGeneral
LocationMOUNT PROSPECT, IL
Grant DateFeb 6, 2025
Expiration DateMay 11, 2034
K9YRN is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by BERTERMANN, RALPH E in MOUNT PROSPECT, IL. 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 OConnor, Harry on Dec 8, 2025. K9YRN has 4 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ----. -.-- .-. -.
CW Weight: 39 units(Moderate)
Voice Phonetics
Kilo Nine Yankee Romeo November
Readability: 7/10(Good readability)
License History
- License RenewedFeb 6, 2025
- License RenewedFeb 28, 2014
- License IssuedMay 11, 2004
- Vanity Callsign GrantedMay 11, 2004
Vanity Application Activity
Competing applications filed with the FCC for this callsign.