K7SDF
Available1x3District 7
Competitive callsign — 1 application filed with the FCC.
License HolderLEDWITH, DONALD K
License ClassAmateur Extra
Min. Class RequiredGeneral
LocationROCHESTER, MI
Grant DateNov 26, 2013
Expiration DateMar 5, 2024
Cancellation DateMar 6, 2026
Available for ApplicationsMar 6, 2026
K7SDF is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by LEDWITH, DONALD K in ROCHESTER, MI. This callsign has attracted significant interest in the amateur radio community, with 1 vanity application filed with the FCC. The most recent was submitted by Oregon State Defense Force Radio Group on Nov 21, 2007. K7SDF has 4 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- --... ... -.. ..-.
CW Weight: 30 units(Light (fast to send))
Voice Phonetics
Kilo Seven Sierra Delta Foxtrot
Readability: 7/10(Good readability)
This callsign is available now
Requires General license or higher to apply for this callsign format (1x3).
License History
- License ExpiredMar 6, 2026
- License RenewedNov 26, 2013
- License RenewedFeb 7, 2004
- License RenewedFeb 7, 2004
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
- Oregon State Defense Force Radio GroupFiled Nov 21, 2007Not awardedFCC ↗