KE4SDR
Available2x3District 4
Competitive callsign — 2 applications filed with the FCC.
License HolderHeffington, Chuck W
License ClassTechnician
Min. Class RequiredTechnician
LocationLeague City, TX
Grant DateOct 27, 2004
Expiration DateOct 25, 2014
Cancellation DateFeb 3, 2009
Available for ApplicationsFeb 4, 2011
KE4SDR is a highly sought-after 2x3 format amateur radio callsign. The license is currently held by Heffington, Chuck W in League City, TX. This callsign has attracted significant interest in the amateur radio community, with 2 vanity applications filed with the FCC. The most recent was submitted by HARRISON, MARSHALL K on Aug 12, 2026. KE4SDR has 4 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- . ....- ... -.. .-.
CW Weight: 28 units(Light (fast to send))
Voice Phonetics
Kilo Echo Four Sierra Delta Romeo
Readability: 6.5/10(Good readability)
This callsign is available now
Requires Technician license or higher to apply for this callsign format (2x3).
License History
- License CanceledFeb 3, 2009
- License ModifiedJan 13, 2009
- Tax ID (TIN) AddedOct 27, 2004
- License RenewedOct 27, 2004
Vanity Application Activity
Competing applications filed with the FCC for this callsign.