N9TPB FCC License Search

🕒 FCC license data updated yesterday 7:15 am CDT (FCC files through Oct 5, 2026) · next update today 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

CHARLES E ISAAK

FRN 0002169621 · first licensed as KC7WHJ · 2 licenses on record

📝 FCC applications (3)

Received	File number	Service	Purpose	Status	Call
Dec 18, 2007	0003262178	HAM	Administrative update	Granted	KK7SW
Mar 6, 2007	0002937624	HAM	Renewal	Granted	KK7SW
May 22, 2000	0000136946	HAM	Modification	Granted	KK7SW

Complete licensing history

📦 Moved: , None → Great Falls, MT

KK7SW Expired Amateur Extra May 23, 2000 → May 3, 2017 (expired)

Licensee
CHARLES E ISAAK

Address
3120 1ST AVE N
GREAT FALLS, MT 59401
47.5112, -111.2772 (ZIP center) · Grid DN47im · CQ 4 · ITU 6 · map ↗

FRN
0002169621

Previous call
KC7WHJ (Advanced)

Last granted
Mar 7, 2007

Effective
Dec 18, 2007

Last action
May 4, 2019
FCC actions (4)
- May 4, 2019 — License expired LIEXP
- Dec 18, 2007 — Administrative update LIAUA
- Mar 7, 2007 — License renewed LIREN
- May 23, 2000 — License modified LIMOD
KC7WHJ Canceled General → May 3, 1999 (canceled)

Licensee
CHARLES E ISAAK

Address

Last granted

Effective

Last action

Address history

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

Seen May 27, 2010 → Oct 4, 2026 · 47 snapshots · as KK7SW
CHARLES E ISAAK
3120 1ST AVE N, GREAT FALLS, MT 59401
47.5112, -111.2772 (ZIP center) · Grid DN47im · CQ 4 · ITU 6 · map ↗
Seen Nov 7, 2004 → Oct 4, 2026 · 48 snapshots · as KC7WHJ
CHARLES E ISAAK
Seen Nov 7, 2004 · 1 snapshot · as KK7SW
CHARLES E ISAAK
PO Box 679
ABERDEEN, ID 83210
43.0203, -112.8692 (ZIP center) · Grid DN33na · CQ 3 · ITU 6 · map ↗

Repeaters within 50 miles

12 repeaters within 50 miles of this ZIP code, 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 · center is the ZIP code (approximate) · 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
0.9	WB9GNC	Great Falls WB9GNC BM	434.9750	+5	CC2	DMR	BrandMeister 315245104	—	Great Falls, MT
1.2	W7ECA	Great Falls High W7ECA WIRES-X	449.5000	-5		Fusion (C4FM)	WIRES-X 30519	—	Great Falls, MT
1.2	AA7GS	Great Falls AA7GS IRLP	147.2400	+0.6		Fusion (C4FM)	IRLP 21184	—	Great Falls, MT
2.2	AA7GS	Great Falls AA7GS	146.6800	-0.6	TONE 100.0	FM (analog)		—	Great Falls, MT
2.2	N7YO	Great Falls N7YO WIRES-X	449.5000	-5	DG-ID 00-00	Fusion (C4FM)	WIRES-X 30519	—	Great Falls, MT
2.3	AG7AD	Great Falls AG7AD	145.2300	-0.6		Fusion (C4FM)		—	Great Falls, MT
3.7	W7ECA	Great Falls Gore W7ECA IRLP	147.3000	+0.6	TONE 100.0	FM (analog)	IRLP 7908	—	Great Falls, MT
3.7	W7ECA	Great Falls Gore W7ECA WIRES-X	444.3500	+5	DCS 051	FM (analog) (C4FM,FM)	WIRES-X 40406 WIRES-X 30406	—	Great Falls, MT
15.0	K7GDM	Great Falls K7GDM AllStar	146.8000	-0.6	TSQL 100.0	FM (analog) (DMR,FM)	EchoLink 129650 AllStar 28781 BrandMeister 311796	—	Great Falls, MT
30.6	W7ECA	Great Falls High W7ECA EchoLink	146.7400	-0.6	TONE 100.0	FM (analog) (C4FM,FM)	EchoLink 37656 WIRES-X 33351 WIRES-X 33350	—	Great Falls, MT
33.5	W7ECA	Fairfield W7ECA WIRES-X	147.2600	+0.6	TONE 107.2	FM (analog) (FM,C4FM)	WIRES-X 43350	—	Fairfield, MT
2.1	W7GMC offline	Great Falls Echo W7GMC IRLP	147.3600	+0.6	TSQL 100.0	FM (analog)	IRLP 5670	—	Great Falls EchoIRLP #425518, MT