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WA4MRT

Active2x3District 4

Competitive callsign — 1 application filed with the FCC.

License HolderROSENBERG, MARTIN E

License ClassGeneral

Min. Class RequiredTechnician

Locationlake worth, FL

Grant DateApr 4, 2019

Expiration DateJun 13, 2029

WA4MRT is a highly sought-after 2x3 format amateur radio callsign. The license is currently held by ROSENBERG, MARTIN E in lake worth, 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 ROSENBERG, MARTIN E on May 26, 2009. WA4MRT has 4 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 32 units(Moderate)

Voice Phonetics

Whiskey Alpha Four Mike Romeo Tango

Readability: 7.5/10(High readability)

License History

License RenewedApr 4, 2019
License ModifiedJun 22, 2009
License IssuedJun 13, 2009
Vanity Callsign GrantedJun 13, 2009

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

ROSENBERG, MARTIN EFiled May 26, 2009
Not awardedFCC ↗

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FCC data as of Sep 11, 2026

WA4MRT FCC Vanity Status: 1 Competing Application & History