KA7COS
Active2x3District 7
Competitive callsign — 1 application filed with the FCC.
License HolderROLDAN, ASUNCION
License ClassTechnician
Min. Class RequiredTechnician
LocationSMITHSBURG, MD
Grant DateAug 28, 2020
Expiration DateAug 28, 2030
KA7COS is a highly sought-after 2x3 format amateur radio callsign. The license is currently held by ROLDAN, ASUNCION in SMITHSBURG, MD. 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 Cosgrove, Caroline K on Aug 10, 2020. KA7COS has 4 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- .- --... -.-. --- ...
CW Weight: 40 units(Moderate)
Voice Phonetics
Kilo Alpha Seven Charlie Oscar Sierra
Readability: 6.5/10(Good readability)
License History
- Administrative Update AppliedJan 3, 2026
- License IssuedAug 28, 2020
- Vanity Callsign GrantedAug 28, 2020
- License CanceledFeb 5, 2000
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
- Cosgrove, Caroline KFiled Aug 10, 2020Not awardedFCC ↗