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KA4SDR

Active2x3District 4

Competitive callsign — 2 applications filed with the FCC.

License HolderStevens III, Herbert J

License ClassGeneral

Min. Class RequiredTechnician

LocationOcoee, FL

Grant DateFeb 3, 2026

Expiration DateMay 1, 2036

KA4SDR is a highly sought-after 2x3 format amateur radio callsign. The license is currently held by Stevens III, Herbert J in Ocoee, FL. 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 Brown, Robert K on Sep 2, 2008. KA4SDR has 9 recorded FCC license history events.

CW & Voice Analysis

Morse Code

-.- .- ....- ... -.. .-.

CW Weight: 31 units(Moderate)

Voice Phonetics

Kilo Alpha Four Sierra Delta Romeo

Readability: 6.5/10(Good readability)

License History

License RenewedFeb 3, 2026
Administrative Update AppliedOct 19, 2024
Administrative Update AppliedJul 30, 2022
Administrative Update AppliedAug 22, 2018
License RenewedFeb 12, 2016
License ModifiedAug 14, 2007
Administrative Update AppliedJul 12, 2007
Tax ID (TIN) AddedMar 9, 2006
License RenewedMar 9, 2006

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Brown, Robert KFiled Sep 2, 2008
Not awardedFCC ↗
RAHN, STEVE DFiled Sep 2, 2008
Not awardedFCC ↗

Search external databases

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Explore nearby callsigns

← KA4SDP KA4SDU →

FCC data as of Sep 3, 2026

KA4SDR FCC Vanity Status: 2 Competing Applications & History