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KK4SHU

Active2x3District 4

Competitive callsign — 1 application filed with the FCC.

License HolderMerkel, Jon W

License ClassGeneral

Min. Class RequiredTechnician

LocationHomosassa, FL

Grant DateJun 28, 2023

Expiration DateJun 28, 2033

KK4SHU is a highly sought-after 2x3 format amateur radio callsign. The license is currently held by Merkel, Jon W in Homosassa, FL. 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 Shu, Chang B on Apr 16, 2013. KK4SHU has 4 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 33 units(Moderate)

Voice Phonetics

Kilo Kilo Four Sierra Hotel Uniform

Readability: 6.5/10(Good readability)

License History

License RenewedJun 28, 2023
License ModifiedMar 27, 2014
System-Generated GrantJun 28, 2013
License IssuedJun 28, 2013

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Shu, Chang BFiled Apr 16, 2013
Not awardedFCC ↗

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FCC data as of Jul 31, 2026

KK4SHU FCC Vanity Status: 1 Competing Application & History