N8KTZ
Active1x3District 8
Competitive callsign — 1 application filed with the FCC.
License HolderSiebke, Marvin C
License ClassTechnician
Min. Class RequiredGeneral
LocationDavenport, IA
Grant DateApr 18, 2017
Expiration DateApr 18, 2027
N8KTZ is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Siebke, Marvin C in Davenport, IA. 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 Yoest, Linda L on Mar 30, 2017. N8KTZ has 6 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-. ---.. -.- - --..
CW Weight: 33 units(Moderate)
Voice Phonetics
November Eight Kilo Tango Zulu
Readability: 7.5/10(High readability)
License History
- License ModifiedAug 11, 2025
- License ModifiedJun 4, 2020
- Administrative Update AppliedDec 28, 2019
- Administrative Update AppliedJul 27, 2018
- License IssuedApr 18, 2017
- Vanity Callsign GrantedApr 18, 2017
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
- Yoest, Linda LFiled Mar 30, 2017Not awardedFCC ↗