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N4DHB

Active1x3District 4

Competitive callsign — 3 applications filed with the FCC.

License HolderMARSTON, ROBERT T

License ClassAmateur Extra

Min. Class RequiredGeneral

LocationFremont, CA

Grant DateAug 30, 2022

Expiration DateNov 15, 2032

N4DHB is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by MARSTON, ROBERT T in Fremont, CA. This callsign has attracted significant interest in the amateur radio community, with 3 vanity applications filed with the FCC. The most recent was submitted by Bailey, Doris H on Oct 28, 2002. N4DHB has 5 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 26 units(Light (fast to send))

Voice Phonetics

November Four Delta Hotel Bravo

Readability: 7.5/10(High readability)

License History

License RenewedAug 30, 2022
License RenewedAug 28, 2012
Administrative Update AppliedMar 30, 2009
License IssuedNov 15, 2002
Vanity Callsign GrantedNov 15, 2002

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Bailey, Doris HFiled Oct 28, 2002
Not awardedFCC ↗
BRIDGES, DONALD HFiled Mar 20, 2000
Not awardedFCC ↗
SCHNEIDER, HERBERT CFiled Mar 20, 2000
Not awardedFCC ↗

Search external databases

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FCC data as of Sep 3, 2026

N4DHB FCC Vanity Status: 3 Competing Applications & History