KJ4SDR
Available2x3District 4
Competitive callsign — 3 applications filed with the FCC.
License HolderGRUGETT, JAMES C
License ClassTechnician
Min. Class RequiredTechnician
LocationATLANTA, GA
Grant DateFeb 12, 2010
Expiration DateFeb 12, 2020
Cancellation DateFeb 15, 2022
Available for ApplicationsFeb 13, 2022
KJ4SDR is a highly sought-after 2x3 format amateur radio callsign. The license is currently held by GRUGETT, JAMES C in ATLANTA, GA. 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 Harrison, Marshall K on Aug 12, 2026. KJ4SDR has 3 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- .--- ....- ... -.. .-.
CW Weight: 37 units(Moderate)
Voice Phonetics
Kilo Juliet Four Sierra Delta Romeo
Readability: 6/10(Good readability)
This callsign is available now
Requires Technician license or higher to apply for this callsign format (2x3).
License History
- License ExpiredFeb 15, 2022
- System-Generated GrantFeb 12, 2010
- License IssuedFeb 12, 2010
Vanity Application Activity
Competing applications filed with the FCC for this callsign.