N9TPB FCC License Search

🕒 FCC license data updated today 7:15 am CDT (FCC files through Oct 4, 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

Christian M Muehlfeld

FRN 0004157004 · first licensed Oct 24, 2000 as KC8PPK · 1 license on record

📝 FCC applications (3)

Received	File number	Service	Purpose	Status	Call
Oct 13, 2021	0009752686	HAM	Renewal + modification	Granted	KC8PPK
Aug 24, 2011	0004850880	HAM	Renewal + modification	Granted	KC8PPK
Oct 19, 2000	0000244522	HAM	New license	Granted	KC8PPK

Complete licensing history

KC8PPK Active Technician Oct 24, 2000 → expires Oct 24, 2030

Licensee
Christian M Muehlfeld

Address
20465 UPPER WORHAM RD
CHASSELL, MI 49916
47.0113, -88.5634 (street) · Grid EN57ra · CQ 4 · ITU 8 · map ↗

FRN
0004157004

Last granted
Oct 13, 2021

Effective
Oct 13, 2021

Last action
Oct 13, 2021
FCC actions (3)
- Oct 13, 2021 — License renewed LIREN
- Aug 24, 2011 — License renewed LIREN
- Oct 24, 2000 — License issued LIISS

Address history

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

Seen Oct 17, 2011 → Oct 4, 2026 · 46 snapshots · as KC8PPK
Christian M Muehlfeld
20465 UPPER WORHAM RD, CHASSELL, MI 49916
47.0113, -88.5634 (street) · Grid EN57ra · CQ 4 · ITU 8 · map ↗
Seen Nov 7, 2004 → May 27, 2010 · 2 snapshots · as KC8PPK
Christian M Muehlfeld
202 5th St, Houghton, MI 49931
47.1848, -88.6408 (ZIP center) · Grid EN57qe · CQ 4 · ITU 8 · map ↗

Repeaters within 50 miles

15 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
6.9	N8WAV	Houghton N8WAV BM	446.5500	+5	CC1	DMR	BrandMeister 312475	—	Houghton, MI
6.9	W8YY	Houghton W8YY BM	446.5500	+5	CC1	DMR	BrandMeister 312476	—	Houghton, MI
6.9	N8WAV	Houghton N8WAV JSwift	147.1200	+0.6	CC1	DMR	JSwift	—	Houghton, MI
6.9	N8WAV	Houghton N8WAV MARC	435.0000	+5	CC1	DMR	DMR-MARC	—	Houghton, MI
7.3	W8YY	Houghton Michiga W8YY	146.6000	-0.6	TONE 100.0	FM (analog)		—	Houghton, MI
7.3	W8YY	Houghton Wadswor W8YY HARC	444.5000	+5	CC1	DMR	HARC BrandMeister 314070	—	Houghton, MI
7.6	W3TLP	Houghton College W3TLP	447.1200	simplex	TSQL 67.0	FM (analog)		—	Houghton, MI
7.6	N8WAV	Houghton N8WAV	147.3900	+0.6	TONE 100.0	FM (analog)		—	Houghton, MI
10.1	W8CDZ	Donken W8CDZ	146.6700	-0.6	TONE 100.0	FM (analog)		—	Donken, MI
10.4	N8ZED	Baraga N8ZED	147.3450	+0.6	TONE 100.0	FM (analog) (FM,C4FM)		—	Baraga, MI
14.9	W8CDZ	Calumet W8CDZ EchoLink	146.8800	-0.6	TSQL 100.0	FM (analog)	EchoLink 283375	—	Calumet, MI
18.8	W8UXG	Winona W8UXG	146.7300	-0.6	TONE 100.0	FM (analog)		—	Winona, MI
26.9	KE8CPN	L'Anse KE8CPN	147.3750	+0.6	TONE 100.0	FM (analog)		—	L'Anse, MI
30.9	W8YY	Phoenix CA Force W8YY HARC	444.7500	+5	CC1	DMR	HARC	—	Phoenix, MI
31.0	W8FWG	Calumet Mt W8FWG EchoLink	147.3150	+0.6	TSQL 100.0	FM (analog)	EchoLink 405654	—	Calumet, MI