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K9JDK

Active1x3District 9

Competitive callsign — 1 application filed with the FCC.

License HolderGudewicz, David L

License ClassGeneral

Min. Class RequiredGeneral

LocationGRAYSLAKE, IL

Grant DateJul 18, 2018

Expiration DateOct 5, 2028

K9JDK is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Gudewicz, David L in GRAYSLAKE, IL. 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 KRUKOFF, JOHN D on Aug 25, 2004. K9JDK has 3 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 42 units(Heavy (slower to send))

Voice Phonetics

Kilo Nine Juliet Delta Kilo

Readability: 7.5/10(High readability)

License History

License RenewedJul 18, 2018
License RenewedAug 29, 2008
License ModifiedJun 15, 2007

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

KRUKOFF, JOHN DFiled Aug 25, 2004
Not awardedFCC ↗

Search external databases

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Explore nearby callsigns

← K9JDI K9JDL →

FCC data as of Jul 31, 2026

K9JDK FCC Vanity Status: 1 Competing Application & History