N9TPB FCC License Search

🕒 FCC license data updated yesterday 7:15 am CDT (FCC files through Oct 12, 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 · old CB calls like KHC1939 or 18Q3518 (1962–63 CB call books) · (205) 546-1767 (1990s CB directory phones)

WRDD287 GMRS 📡 HAM

📡

Also a licensed HAM

W3HRD

Technician class · same FCC Registration Number (FRN) · active on 2 nets · LoTW user

Current holder: Philip H Cha

General Mobile Radio Service license · held by Philip H Cha · Potomac, MD · FRN 0028368132

Status	Active
Granted	Apr 2, 2019
Expires	Apr 2, 2029
Mailing address	PO Box 20854, 942 willowleaf way, Potomac, MD 20854

A GMRS license covers the licensee's immediate family, and lasts 10 years.

📻 GMRS Repeaters within 50 Miles

29 on the air or of unknown status, closest first · map these & export for a GMRS radio →

Miles	Channel	Output	Tone in	Owner	Location	Access	Status
6	RP18	462.625	156.7	WPON592	Wheaton, MD	Open	On the air
13	RP16	462.575	141.3	KAD6329	Arlington, VA · Clarendon	Open	On the air
13	RP20	462.675	141.3	KAD6329	Falls Church, VA · Seven Corners	Open	On the air
14	RP15	462.550	141.3	WPON592	Falls Church, VA · Seven Corners	Open	On the air
17	RP18	462.625	123.0	WPON592	Alexandria, VA · Fort Ward Park	Open	On the air
17	RP22	462.725	88.5	WQMM856	Laurel, MD	Open	On the air
18	RP17	462.600	141.3	KAB7046	Alexandria, VA · West End	Open	On the air
18	RP21	462.700	141.3	KAB7046	Washington, DC · Anacostia	Open	On the air
20	RP16	462.575	241.8	WREZ274	Capitol Heights, MD	Open	On the air
22	RP18	462.625	88.5	WQMM856	Largo, MD	Open	On the air
24	RP19	462.650	192.8	WRJY601	Ellicott City, MD	Open	On the air
24	RP16	462.575	136.5	WRDF311	Alexandria, VA · Mount Vernon, VA	Open	On the air
28	RP15	462.550	141.3	WQMM856	Lanham, MD · Doctor's Hospital	Open	On the air
28	RP15	462.550	136.5	WRXD980	Burtonsville, MD	Open	On the air
28	RP15	462.550	—	WRYB934	Chestertown, MD	Open	On the air
28	RP20	462.675	103.5	WSAD893	Baltimore, MD · Pasadena	Open	On the air
28	RP15	462.550	D261	WRTH256	Frederick, MD · Butterfly Ridge Elementary	Open	On the air
29	RP18	462.625	141.3	WSHN928	Woodbridge, VA · Government Complex Center	Open	On the air
29	RP18	462.625	141.3	WSHN928	Woodbridge, VA · Government Complex Center	Open	On the air
29	RP18	462.625	141.3	WSHN928	Woodbridge, VA · Government Complex Center	Open	On the air
32	RP15	462.550	141.3	WRZV755	Baltimore, MD · Pigtown	Open	On the air
32	RP22	462.725	141.3	WSKD955	Waldorf, MD · Route 301 And Route 5 Split	Open	On the air
33	RP20	462.675	100.0	WRJY601	Frederick, MD	Open	On the air
33	RP20	462.675	192.8	WRJY601	Baltimore, MD	Open	On the air
38	RP17	462.600	192.8	WRJY601	Towson, MD	Open	On the air

Showing the closest 25.

📡 Amateur Radio Licenses on the Same FRN

Call	Status	Class	Name	Location	Granted	Expires
W3HRD	Active	Technician	PHILIP H CHA	Potomac, MD	Apr 14, 2020	Apr 14, 2030
KC3NSR	Canceled	Technician	PHILIP H CHA	Potomac, MD	Jul 8, 2019	Jul 8, 2029

📜 License History

Date	FCC action
Apr 2, 2019	License issued

🏠 Address History

Every address Philip H Cha gave the FCC on a GMRS filing, newest first.

Filed from	Address	On a
Apr 1, 2019	PO Box 20854, 942 willowleaf way, Potomac, MD 20854	New license

📝 GMRS Applications Filed

Received	File number	Purpose	Result	Filed from
Apr 1, 2019	0008585112	New license	Granted	Potomac, MD

GMRS and amateur licenses come from the FCC Universal Licensing System, updated nightly. Licenses are linked by FCC Registration Number (FRN).