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Confidence: Medium · Source: FCC ULS · As of 2026-09-12

K9FD callsign genealogy

Currently held by SCHWEIGERT, MERVYN D

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 K9FD's current licensee, walking backwards.

  1. KH7Cactive· E
    Aronoff, D BartHIgranted 2022-12-02
  2. WH6AAcancelled· E
    Aronoff, D BartHIgranted 2003-09-20cancelled 2012-08-24
  3. NH7RUcancelled· T
    ARONOFF, D BARTHIgranted 2003-08-21cancelled 2003-09-20

Successor callsigns

Callsigns held now by people who previously held K9FD.

  1. KH7Ccancelled· E
    SCHWEIGERT, MERVYN DHIgranted 2008-11-25cancelled 2010-08-03
  2. KH6JJcancelled· E
    SCHWEIGERT, MERVYN DHIgranted 2001-08-18cancelled 2002-10-04

All historical holders

Every license row we've seen with the callsign K9FD, oldest first.

  • SCHWEIGERT, MERVYN D HI
    1994-07-09 → cancelled 2001-08-18
  • SCHWEIGERT, MERVYN D HI
    2002-10-04 → cancelled 2008-11-25
  • SCHWEIGERT, MERVYN D WI
    2020-08-24 active
← Back to K9FD License history →