K4SYD
Active1x3District 4
Competitive callsign — 3 applications filed with the FCC.
License HolderOhnmacht, Cynthia
License ClassAmateur Extra
Min. Class RequiredGeneral
LocationHuntsville, AL
Grant DateDec 12, 2025
Expiration DateDec 12, 2035
K4SYD is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Ohnmacht, Cynthia in Huntsville, AL. 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 Ohnmacht, Cynthia on Nov 24, 2025. K4SYD has 2 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ....- ... -.-- -..
CW Weight: 32 units(Moderate)
Voice Phonetics
Kilo Four Sierra Yankee Delta
Readability: 7.5/10(High readability)
License History
- License IssuedDec 12, 2025
- Vanity Callsign GrantedDec 12, 2025
Vanity Application Activity
Competing applications filed with the FCC for this callsign.