Confidence: Medium · Source: FCC ULS · As of 2026-09-09
W9TVK callsign genealogy
Currently held by Radke, Karl
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by W9TVK's current licensee, walking backwards.
- Radke, KarlWIgranted 2024-08-07cancelled 2024-08-27
Successor callsigns
Callsigns held now by people who previously held W9TVK.
- Radke, Karl FWIgranted 2025-02-21