N9TPB
FCC License Search
🕒 FCC license data updated today 7:15 am CDT (FCC files through Oct 21, 2026) · next update tomorrow 6:00 am CDT
Ask:
HAMs within 5 miles of N9TPB · Extra class operators in Madison, WI · or try N9TPB · K9* wildcards · Smith, John · 0004797601 (FRN) · 53703 · Madison, WI · old CB calls like KHC1939 or 18Q3518 (1962–63 CB call books) · (205) 546-1767 (1990s CB directory phones)KA3DUA HAM
✅ Available for a vanity request — free since Nov 16, 2004.
2x3 call: any licensee can request it.
No pending applications list it.
📬 QSL: no LoTW uploads on record · not eQSL AG · QRZ · HamQTH
Not currently held · 1 holder on record · available since Nov 16, 2004
Previous holder: KARL F GRUBER
Held KA3DUA Feb 9, 1993 → Nov 15, 2002
· first licensed Feb 9, 1993 as KA3DUA
· 2 licenses · FRN 0007944143
📖 In the printed callbooks since 1980 as KA3DUA, before the FCC's online records
-
- Licensee
- KARL F GRUBER
- Address
- 8343 N WILLIAMS RD
SAINT JOHNS, MI 48879
- FRN
- 0007944143
- Previous call
- KA3DUA
- Last granted
- Apr 5, 2023
- Effective
- Apr 5, 2023
- Last action
- Apr 5, 2023
FCC actions (4)
- Apr 5, 2023 — License renewed LIREN
- Dec 10, 2012 — License renewed LIREN
- Nov 15, 2002 — Systematic call sign granted SYSGRT
- Nov 15, 2002 — License issued LIISS
-
- Licensee
- KARL F GRUBER
- Address
- 8343 N WILLIAMS RD
SAINT JOHNS, MI 48879
- FRN
- 0007944143
- Last granted
- Nov 14, 2002
- Effective
- Nov 14, 2002
- Last action
- Nov 15, 2002
FCC actions (3)
- Nov 15, 2002 — License canceled LICAN
- Nov 14, 2002 — License renewed LIREN
- Nov 14, 2002 — FCC action LITIN
Callbook Records, 1993–2003
From the FCC amateur database as published on the QRZ! callsign CD-ROMs, 1993–2003, before and alongside the FCC's online records (which start in 1999). "Seen" dates are the first and last disc showing that record; the issue date is the FCC's, so it can be a renewal of an even older license.
- Seen Apr 17, 2003 · 1 disc
KC8VDV · General · issued Nov 15, 2002, expires Feb 9, 2013 · previously KA3DUA
KARL F GRUBER
8343 N WILLIAMS RD, SAINT JOHNS, MI 48879 - Seen Sep 9, 1993 → Oct 25, 2002 · 18 discs
KA3DUA · General · issued Feb 9, 1993, expires Feb 9, 2003
KARL F. GRUBER
8343 N WILLIAMS RD, SAINT JOHNS, MI 48879
Address history
From FCC database snapshots (2004 → now). "Seen" dates are the first and last snapshot showing that address.
- Seen Nov 7, 2004 → Oct 18, 2026 · 100 snapshots · as KA3DUA
KARL F GRUBER
8343 N WILLIAMS RD, SAINT JOHNS, MI 48879
KA3DUA in the Printed Callbooks, 1909–1997
From scanned copies of the printed callbooks (government lists from 1913, then the Radio Amateur Callbook to 1997), read by OCR, so names and streets can carry typos. Each line is one or more editions in a row showing the same name at the same address.
- 1996 · 1 edition
KA3DUA · class G
Karl F Gruber
B343 N Williams Rd, Saint Johns Ml 4bb79
1996 p.454 - 1995 · 1 edition
KA3DUA · class G
Karl F Gruber
6343 N Williams Rd, Saint Johns Ml 46b79
1995 p.469 - 1994 · 1 edition
KA3DUA · class G
Karl F Gruber
8343 N Williams Rd, Saint Johns, MI 48879
1994 p.413 - 1988 → 1991 · 3 editions
KA3DUA · class G
Karl F Gruber
1637-J Spartan Village, East Lansing Ml 48823
Winter 1988 p.333, Winter 1990 p.334, Winter 1991 p.357 - 1986 · 1 edition
KA3DUA · class G
Karl F Gruber
Lbjj-J Spartan Village, East Lansing, MI 48823
Winter 1986 p.328 - 1985 · 1 edition
KA3DUA · class G
Karl F Gruber
7gos Colonial Ln, Clinton, MD 20735
Winter 1985 p.330 - None → 1984 · 6 editions
KA3DUA · class G
Karl F Gruber
7908 Colonial Ln, Clinton
None p.248, Winter 1980 p.305, 1981 p.239, Winter 1982 p.314, Winter 1983 p.322, Winter 1984 p.333
📡 On the Air: APRS, Digital & WSPR Spots
No APRS positions, PSK Reporter reports or WSPR spots for KA3DUA in the last 24 hours. They show up here within seconds of KA3DUA beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.