N9TPB FCC License Search

🕒 FCC license data updated today 7:16 am CDT (FCC files through Oct 22, 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)

DAVID C CHRISTENSON

FRN 0002678050 · first licensed Nov 27, 1999 as KA9ZRR · 2 licenses on record

📝 FCC Applications (8)

Received	File number	Service	Purpose	Status	Call
Apr 27, 2023	0010519914	HAM	Modification	Granted	W9SGD
Aug 27, 2018	0008335721	HAM	Duplicate license	Granted	W9SGD
Nov 28, 2017	0008009316	HAM	Administrative update	Granted	W9SGD
Sep 8, 2017	0007920641	HAM	Renewal	Granted	W9SGD
Nov 6, 2007	0003223485	HAM	Modification	Granted	KA9ZRR
Mar 19, 2001	0000405055	HAM	Renewal	Granted	KA9ZRR
Nov 19, 1999	0000052108	HAM	Duplicate license	Granted	KA9ZRR
Nov 19, 1999	0000051972	HAM	Modification	Granted	KA9ZRR

Complete Licensing History

W9SGD Active General · vanity Nov 24, 2007 → expires Nov 24, 2027

Licensee
DAVID C CHRISTENSON

Address
W4317 OAKWOOD ROAD
DAGGETT, MI 49821
45.5516, -87.5536 (street) · Grid EN65fn · CQ 4 · ITU 8 · map ↗

FRN
0002678050

Previous call
KA9ZRR (Technician)

Last granted
Sep 9, 2017

Effective
Apr 27, 2023

Last action
Apr 27, 2023
FCC actions (5)
- Apr 27, 2023 — License modified LIMOD
- Nov 28, 2017 — Administrative update LIAUA
- Sep 9, 2017 — License renewed LIREN
- Nov 24, 2007 — Vanity call sign granted VANGRT
- Nov 24, 2007 — License issued LIISS
KA9ZRR Canceled Technician Nov 27, 1999 → Nov 24, 2007 (canceled)

Licensee
DAVID C CHRISTENSON

Address
W4317 OAKWOOD RD
DAGGETT, MI 49821
45.5203, -87.6197 (ZIP center) · Grid EN65em · CQ 4 · ITU 8 · map ↗

FRN
0002678050

Last granted
Mar 24, 2001

Effective
Mar 24, 2001

Last action
Nov 24, 2007
FCC actions (3)
- Nov 24, 2007 — License canceled LICAN
- Mar 24, 2001 — License renewed LIREN
- Nov 27, 1999 — License modified LIMOD

Address history

From FCC database snapshots (2004 → now). "Seen" dates are the first and last snapshot showing that address.

Seen Jan 2, 2018 → Oct 18, 2026 · 20 snapshots · as W9SGD
DAVID C CHRISTENSON
W4317 OAKWOOD ROAD, DAGGETT, MI 49821
45.5516, -87.5536 (street) · Grid EN65fn · CQ 4 · ITU 8 · map ↗
Seen Nov 7, 2004 → Oct 18, 2026 · 79 snapshots · as KA9ZRR
DAVID C CHRISTENSON
W4317 OAKWOOD RD, DAGGETT, MI 49821
45.5203, -87.6197 (ZIP center) · Grid EN65em · CQ 4 · ITU 8 · map ↗

Repeaters within 50 Miles

28 repeaters within 50 miles of this address, closest first · sort: closest · most active · map these & export for a radio →

● confirmed on the air · ● probably · ● reported off the air · ● unknown · ◉ this license · ring = 50 miles · click a dot for the repeater's page

● confirmed on the air · ● probably · ● reported off the air · no dot = unknown (hover a dot for the evidence)

Miles	Call	Name	Output	Offset	Tone	Mode	Networks	Activity	Location
15.9	KS8O	Wallace KS8O	444.6500	+5	DCS 125	FM (analog)		—	Wallace, MI
22.4	KC9WOG	Amberg KC9WOG WIN	443.7000	+5	none	D-STAR	WIN	—	Amberg, WI
22.4	WI9WIN	Amberg Badger WI9WIN	443.7000	+5	TSQL 114.8	FM (analog)		—	Amberg, WI
23.0	WA8WG	Wausaukee WA8WG	146.8800	-0.6	TSQL 136.5	FM (analog)		—	Wausaukee, WI
25.1	W8PIF	Marinette JS W8PIF EchoLink	147.0000	+0.6	TSQL 107.2	FM (analog)	EchoLink 481872	—	Marinette, WI
25.5	N8JWT	Escanaba N8JWT	147.2400	+0.6	TSQL 123.0	FM (analog)		—	Escanaba, MI
26.5	W4IJR	Porterfield W4IJR	444.4000	+5	TSQL 100.0	FM (analog)		—	Porterfield, WI
27.3	KB9BQX	Escanaba KB9BQX	145.1300	-0.6	none	FM (analog)		—	Escanaba, MI
27.3	W9MB	Niagara W9MB	223.8200	-1.6	TSQL 114.8	FM (analog)		—	Niagara, WI
30.2	W9DOR	Ellison Bay W9DOR	147.1800	+0.6	TSQL 100.0	FM (analog)		—	Ellison Bay, WI
30.8	K9STT	Menominee K9STT	224.6000	-1.6	TSQL 141.3	FM (analog)		—	Menominee, MI
30.8	W8PIF	Menominee W8PIF WIRES-X	444.0750	+5	TSQL 107.2	FM (analog) (FM,C4FM)	WIRES-X 52285	—	Menominee, MI
31.2	W9AIQ	Sister Bay PBC W9AIQ	147.1800	+0.6	TSQL 100.0	FM (analog)		—	Sister Bay, WI
32.0	KC8VC	Kingsford Iron KC8VC	146.8500	-0.6	TSQL 110.9	FM (analog) (FM,C4FM)		—	Kingsford, MI
32.0	KC8VC	Iron Mountain KC8VC	444.8500	+5	TONE 100.0	FM (analog)		—	Iron Mountain, MI
34.0	AB9PJ	Marinette WHYB AB9PJ	444.5000	+5	TSQL 146.2	FM (analog)		—	Marinette, WI
34.0	WI9DX	Wash Greengatge WI9DX AllStar	145.4900	-0.6	TSQL 100.0	FM (analog)	AllStar 291120	—	Washington Island, WI
34.8	WI9DX	Washington Isl WI9DX BM	442.2250	+5	CC6	DMR	BrandMeister 322002501	—	Washington Isl, WI
34.9	WI9DX	Washington Islan WI9DX AllStar	440.3000	+5	TSQL 123.0	FM (analog)	AllStar 291121	—	Washington Island, WI
36.4	KB9BNA	Washington Islan KB9BNA AllStar	440.3000	+5	TONE 123.0	FM (analog)	AllStar 291121	—	Washington Island, WI
37.1	K9HAH	Egg Harbor K9HAH EchoLink	146.7300	-0.6	TONE 107.2	FM (analog)	EchoLink 910826	—	Egg Harbor, WI
37.2	W9AIQ	Egg Harbor W9AIQ	146.7300	-0.6	TSQL 107.2	FM (analog)		—	Egg Harbor, WI
39.0	K8PL	Escanaba K8PL	147.1500	+0.6	TONE 100.0	FM (analog) (FM,C4FM)		—	Escanaba, MI
40.1	WI9WIN	Pound Badger WI9WIN WIN	442.0000	+5	TSQL 114.8	FM (analog)	WIN	—	Pound, WI
41.7	W9DOR	Egg Harbor DC EM W9DOR	146.7300	-0.6	TSQL 107.2	FM (analog)		—	Egg Harbor, WI
45.5	W9DOR	Sturgeon Bay WDO W9DOR AllStar	147.2100	+0.6	TSQL 107.2	FM (analog)	AllStar 53693 EchoLink 660181	—	Sturgeon Bay, WI
49.2	N8RY	Gwinn N8RY BM	444.0000	in 433.4500	CC1	DMR	BrandMeister 3163836	—	Gwinn Michigan, MI
30.0	N7SWX Offline	Iron M Millie Hl N7SWX WIRES-X	147.2850	+0.6	TSQL 100.0	FM (analog) (FM,C4FM)	WIRES-X 33879	—	Iron Mountain, MI

Vanity Applications

Filed · Award	Applicant	Requested (in order)	Status
Filed Nov 6, 2007 Granted Sep 9, 2017 0003223485	KA9ZRR · DAVID C CHRISTENSON · Technician Attn: W4317 Oakwood Rd · W4317 OAKWOOD RD, DAGGETT, MI 49821 45.5203, -87.6197 (ZIP center) · Grid EN65em · CQ 4 · ITU 8 · map ↗	1.W9SGD ✓ Granted	Granted got W9SGD