N9TPB FCC License Search

🕒 FCC license data updated yesterday 9:45 am CDT · next update today 7:15 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

Brent A Robertson

FRN 0025161357 · first licensed Dec 28, 2015 as KM4QAH · 2 licenses on record

📝 FCC applications (8)

Received	File number	Service	Purpose	Status	Call
Dec 16, 2025	0011832533	HAM	Renewal	Granted	W4CHE
Feb 20, 2018	0008103902	HAM	Administrative update	Granted	W4CHE
Jun 1, 2016	0007287794	HAM	Administrative update	Granted	W4CHE
May 31, 2016	0007286425	HAM	Modification	Granted	W4CHE
May 16, 2016	0007267087	HAM	Duplicate license	Granted	W4CHE
Apr 19, 2016	0007235967	HAM	Modification	Granted	W4CHE
Jan 14, 2016	0007096687	HAM	Modification	Granted	KM4QAH
Dec 28, 2015	0007075730	HAM	New license	Granted	KM4QAH

Complete licensing history

W4CHE Active Amateur Extra · vanity Feb 2, 2016 → expires Feb 2, 2036

Licensee
Brent A Robertson

Address
155 Cedar Ridge Pl
Paducah, KY 42003
36.9838, -88.5167 (street) · Grid EM56rx · CQ 4 · ITU 8 · map ↗

FRN
0025161357

Previous call
KM4QAH (General)

Last granted
Dec 17, 2025

Effective
Dec 17, 2025

Last action
Dec 17, 2025
FCC actions (6)
- Dec 17, 2025 — License renewed LIREN
- Feb 21, 2018 — Administrative update LIAUA
- May 31, 2016 — License modified LIMOD
- Apr 19, 2016 — License modified LIMOD
- Feb 2, 2016 — Vanity call sign granted VANGRT
- Feb 2, 2016 — License issued LIISS
KM4QAH Canceled Technician Dec 28, 2015 → Feb 2, 2016 (canceled)

Licensee
Brent A Robertson

Address
185 Cedar Ridge Pl
Paducah, KY 42003
37.0048, -88.5779 (ZIP center) · Grid EM57ra · CQ 4 · ITU 8 · map ↗

FRN
0025161357

Last granted
Dec 28, 2015

Effective
Dec 28, 2015

Last action
Feb 2, 2016
FCC actions (3)
- Feb 2, 2016 — License canceled LICAN
- Dec 28, 2015 — License issued LIISS
- Dec 28, 2015 — Systematic call sign granted SYSGRT

Address history

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

Seen May 7, 2018 → Oct 4, 2026 · 17 snapshots · as W4CHE
Brent A Robertson
155 Cedar Ridge Pl, Paducah, KY 42003
36.9838, -88.5167 (street) · Grid EM56rx · CQ 4 · ITU 8 · map ↗
Seen Jan 14, 2016 → Oct 4, 2026 · 42 snapshots · as KM4QAH
Brent A Robertson
185 Cedar Ridge Pl, Paducah, KY 42003
37.0048, -88.5779 (ZIP center) · Grid EM57ra · CQ 4 · ITU 8 · map ↗

Repeaters within 50 miles

56 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
8.3	W4NJA	Paducah W4NJA EchoLink	147.0600	+0.6	TSQL 179.9	FM (analog)	EchoLink 458276 🗓 2 nets	2 nets · 101 check-ins · 41 stations	Paducah, KY
8.3	KD4DVI	Paducah KD4DVI	147.1200	+0.6	TSQL 179.9	FM (analog) (FM,C4FM)		—	Paducah, KY
8.6	W4WWS	Paducah W4WWS WIRES-X	147.1200	+0.6	DG-ID 00-00	Fusion (C4FM)	WIRES-X 33265	—	Paducah, KY
9.2	KD4DVI	Paducah KD4DVI	443.0000	+5	TSQL 179.9	FM (analog) (FM,C4FM)		—	Paducah, KY
10.9	KI4HUS	Draffenville KI4HUS EchoLink	145.3900	-0.6	TONE 118.8	FM (analog)	EchoLink 328811 🗓 1 net	1 net	Draffenville, KY
12.0	KI4HUS	Benton MR Squad KI4HUS	443.5000	+5	TSQL 118.8	FM (analog)	🗓 1 net	1 net	Benton, KY
15.3	N9IBS	Metropolis N9IBS	444.9750	+5	TONE 123.0	FM (analog)		—	Metropolis, IL
16.6	N9IBS	Metropolis N9IBS	147.2250	+0.6	TONE 123.0	FM (analog)		—	Metropolis, IL
17.0	KM4JZX	Mayfield KM4JZX	145.1100	-0.6	TONE 179.9	FM (analog)	🗓 1 net	1 net · 68 check-ins · 27 stations	Mayfield, KY
17.0	KM4JZX	Mayfield KM4JZX	224.8200	-1.6	TONE 179.9	FM (analog)	🗓 1 net	1 net · 68 check-ins · 27 stations	Mayfield, KY
17.0	KM4JZX	Mayfield KM4JZX	441.8750	+5	TONE 179.9	FM (analog)	🗓 1 net	1 net · 68 check-ins · 27 stations	Mayfield, KY
19.8	KM4LDP	Metropolis Cook KM4LDP	146.6550	-0.6	TSQL 118.8	FM (analog)		—	Metropolis, IL
20.2	KN4CG	Jonathan Creek KN4CG	146.9850	-0.6	TONE 123.0	FM (analog)		—	Jonathan Creek, KY
26.7	KB4MLW	Wingo KB4MLW BM	439.8000	-5	CC1	DMR	BrandMeister 320483804	—	Wingo, KY
27.1	N9RCM	Grand Chain N9RCM	145.1300	-0.6	TSQL 118.8	FM (analog)		—	Grand Chain, IL
27.7	KA4WWS	Murray KA4WWS BM	442.8750	+5	CC1	DMR	BrandMeister 312254	—	Murray, KY
27.7	K4MSU	Murray K4MSU WIRES-X	147.2400	+0.6	DG-ID 00-00	Fusion (C4FM)	WIRES-X 51371	—	Murray, KY
27.8	K4MSU	Murray PDF Arts K4MSU	146.9400	-0.6	TSQL 91.5	FM (analog) (C4FM,FM)		—	Murray, KY
28.1	K4MSU	Murray K4MSU EchoLink	443.8000	+5	TSQL 91.5	FM (analog) (C4FM,FM)	EchoLink 207370	—	Murray, KY
30.7	K4GFX	Fredonia Crayne K4GFX	444.8250	+5	TSQL 100.0	FM (analog)		—	Fredonia, KY
30.7	K4GFX	Fredonia Crayne K4GFX EchoLink	147.2850	+0.6	TSQL 100.0	FM (analog)	EchoLink 186083	—	Fredonia, KY
31.6	KA9SKT	Wickliffe KA9SKT	147.1800	+0.6	TSQL 88.5	FM (analog)		—	Wickliffe, KY
32.9	KD9CHL	Marion KD9CHL	443.4000	+5	TONE 100.0	FM (analog)		—	Marion, KY
35.7	W4KBL	Princeton Vocati W4KBL AllStar	444.1750	+5	TSQL 123.0	FM (analog) (FM,C4FM)	WIRES-X 40806 AllStar 663331	—	Princeton, KY
35.8	W4KBL	Princeton Vocati W4KBL AllStar	145.2300	-0.6	TSQL 179.9	FM (analog)	AllStar 663330 EchoLink 328998	—	Princeton, KY
36.1	W4GZ	Hamlin W4GZ	147.2400	+0.6	TSQL 91.5	FM (analog) (FM,C4FM)		—	Hamlin, KY
40.2	K4JTM	South Fulton K4JTM BM	444.1125	+5	CC1	DMR	BrandMeister 314753	—	South Fulton, TN
41.1	K4CAY	Hickman Cayce K4CAY AllStar	145.2700	-0.6	TSQL 100.0	FM (analog)	AllStar 65030 EchoLink 256914 🗓 1 net	1 net · 27 check-ins · 27 stations	Hickman, KY
41.3	W9WG	Tunnel Hill W9WG	147.3450	+0.6	TSQL 88.5	FM (analog)		—	Tunnel Hill, IL
41.4	WS9CAN	Herod Williams WS9CAN	145.3700	-0.6		Fusion (C4FM)		—	Herod, IL
41.4	WS9CAN	Herod Williams WS9CAN	146.8800	-0.6	TSQL 88.5	FM (analog)		—	Herod, IL
41.4	K9OWU	Herod Williams K9OWU	444.8000	+5	TSQL 88.5	FM (analog) (FM,C4FM)		—	Herod, IL
44.5	KA4BNI	Martin KA4BNI BM	444.7125	+5	CC1	DMR	BrandMeister 310544	—	Martin, TN
44.5	KY4KEN	Cerulean KY4KEN	147.1950	+0.6	TONE 136.5	FM (analog)		—	Cerulean, KY
47.1	KO4LFZ	Hickman KO4LFZ BM	439.4500	in 430.4500	CC1	DMR	BrandMeister 3180550 BrandMeister 318055005	—	Hickman, KY
47.1	W4WKY	Dawson S Outwood W4WKY EchoLink	443.2250	+5	TONE 77.0	FM (analog) (FM,C4FM)	EchoLink 328998	—	Dawson Springs, KY
47.2	KF4CWK	Dawson Springs KF4CWK	146.7750	-0.6	none	FM (analog)		—	Dawson Springs, KY
47.2	W4WKY	Dawson Springs W4WKY	147.3150	+0.6	TSQL 82.5	FM (analog) (FM,C4FM)		—	Dawson Springs, KY
47.5	K4CAY	Union City K4CAY	443.5000	+5	CC?	DMR	🗓 1 net	1 net · 27 check-ins · 27 stations	Union City, TN
47.6	K4CAY	Hickman Fulton K4CAY BM	441.9125	+5	CC1	DMR	BrandMeister 311145 🗓 1 net	1 net · 27 check-ins · 27 stations	Hickman, KY
47.6	K4CAY	Hickman Fulton K4CAY AllStar	444.2500	+5	TONE 100.0	FM (analog) (FM,C4FM)	AllStar 682060 WIRES-X 2288 🗓 1 net	1 net · 27 check-ins · 27 stations	Hickman, KY
47.8	K9IM	Olive Branch K9IM	147.2550	+0.6	TSQL 118.8	FM (analog)		—	Olive Branch, IL
47.9	K4JTM	Union City Obion K4JTM AllStar	442.9500	in 446.9500	TONE 100.0	FM (analog)	AllStar 667191 EchoLink 241352 AllStar 65196 🗓 1 net	1 net · 106 check-ins · 48 stations	Union City, TN
48.0	W4UTM	Martin W4UTM	146.6250	-0.6	TSQL 100.0	FM (analog)		—	Martin, TN
48.0	W4UTM	Martin W4UTM	443.2750	+5	TONE 100.0	FM (analog)		—	Martin, TN
48.3	KJ4ISZ	Paris KJ4ISZ	147.3600	+0.6	TONE 123.0	FM (analog)		—	Paris, TN
48.4	KA4BNI	Dresden KA4BNI BM	442.1500	+5	TSQL 131.8	FM (analog) (DMR,FM)	BrandMeister 311062	—	Dresden, TN
48.4	K4JTM	Union City K4JTM BM	442.3500	+5	CC1	DMR	BrandMeister 311035	—	Union City, TN
48.4	W4NWT	Union City W4NWT BM	147.0150	+0.6	CC5	DMR	BrandMeister 311056	—	Union City, TN
48.4	K4JTM	Union City K4JTM BM	145.3000	-0.6	CC1	DMR	BrandMeister 314193	—	Union City, TN
49.0	KB4IBW	Dresden KB4IBW	53.1300	-0.5	TSQL 107.2	FM (analog)		—	Dresden, TN
49.0	KB4IBW	Dresden KB4IBW WIRES-X	145.1500	-0.6	TSQL 100.0	FM (analog) (DMR,DV,FM)	WIRES-X 52834	—	Dresden, TN
49.9	K4JTM	Dresden Weakley K4JTM AllStar	443.6000	+5	TONE 100.0	FM (analog)	AllStar 667192 EchoLink 241352	—	Dresden, TN
8.3	KY4OEM offline	Paducah KY4OEM	146.7600	-1.6	TSQL 179.9	FM (analog)		—	Paducah, KY
45.7	K4JTM offline	Greenfield K4JTM	442.9125	+5	CC?	DMR		—	Greenfield, TN
48.9	WF4Q offline	Union City WF4Q	147.0150	+0.6	none	FM (analog)		—	Union City, TN

Vanity applications

Filed · Award	Applicant	Requested (in order)	Status
Filed Jan 14, 2016 Granted Dec 17, 2025 0007096687	KM4QAH · Brent A Robertson · Technician 185 Cedar Ridge Pl, Paducah, KY 42003 37.0048, -88.5779 (ZIP center) · Grid EM57ra · CQ 4 · ITU 8 · map ↗	1.W4CHE ✓ granted 2.W4FJC held	Granted got W4CHE