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

FREDERICK O STERN

FRN 0003329497 · first licensed Apr 26, 2000 as K3ABV · 1 license on record

📝 FCC applications (1)

Received	File number	Service	Purpose	Status	Call
Apr 25, 2000	0000116787	HAM	Renewal	Granted	K3ABV

Complete licensing history

K3ABV Expired General Apr 26, 2000 → May 29, 2010 (expired)

Licensee
FREDERICK O STERN

Address
111 LYNDALE AVE
BALTIMORE, MD 21236
39.3882, -76.4837 (ZIP center) · Grid FM19sj · CQ 5 · ITU 8 · map ↗

FRN
0003329497

Last granted
Apr 26, 2000

Effective
Apr 26, 2000

Last action
May 30, 2012
FCC actions (2)
- May 30, 2012 — License expired LIEXP
- Apr 26, 2000 — License renewed LIREN

Address history

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

Seen Nov 7, 2004 → Oct 4, 2026 · 48 snapshots · as K3ABV
FREDERICK O STERN
111 LYNDALE AVE, BALTIMORE, MD 21236
39.3882, -76.4837 (ZIP center) · Grid FM19sj · CQ 5 · ITU 8 · map ↗

Repeaters within 50 miles

265 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
2.0	W3JEH	Perry Hall W3JEH	223.8400	-1.6	none	FM (analog)		—	Perry Hall, MD
3.0	N3SBP	Parkville N3SBP BM	223.8000	-1.6	CC1	DMR	BrandMeister 312410402 BrandMeister 314562	—	Parkville, MD
3.8	W3DAK	Middle River W3DAK EchoLink	447.3750	-5	TONE 67.0	FM (analog) (DMR,FM)	EchoLink 823021 BrandMeister 312299	—	Middle River, MD
4.4	WB3FFV	Middle River MD WB3FFV BM	438.0150	-5	CC1	DMR	BrandMeister 322199401	—	Middle River, MD FM1, MD
4.4	N3EST	Middle River N3EST	147.3450	+0.6	TONE 192.8	FM (analog)		—	Middle River, MD
4.5	W3PGA	Baltimore KHS W3PGA	449.5750	-5	TSQL 123.0	FM (analog) (FM,C4FM)		—	Baltimore, MD
4.5	W3PGA	Baltimore KHS W3PGA	147.2400	+0.6	TSQL 123.0	FM (analog) (FM,C4FM)		—	Baltimore, MD
4.8	N3EMC	Middle River N3EMC AllStar	927.7000	-25	TSQL 156.7	FM (analog) (DMR,FM)	AllStar 67341 EchoLink 506758 TGIF	—	Middle River, MD
6.4	W3FT	Towson W3FT EchoLink	146.6700	-0.6	TONE 107.2	FM (analog)	EchoLink 286640	—	Towson, MD
6.4	WR3IRS	Towson WR3IRS Interstat	441.4000	+5	CC1	DMR	Interstate	—	Towson, MD
6.4	N3CDY	Towson N3CDY	449.2750	-5	TONE 107.2	FM (analog) (FM,P25)		—	Towson, MD
6.4	W3DHS	Towson W3DHS	145.1400	-0.6	TONE 114.8	D-STAR		—	Towson, MD
6.4	W3DHS	Towson W3DHS EchoLink	145.3300	-0.6	TONE 114.8	FM (analog)	EchoLink 217618	—	Towson, MD
6.4	WB3DZO	Towson WB3DZO	147.0300	+0.6	TONE 156.7	FM (analog)		—	Towson, MD
6.4	W3DHS	Towson W3DHS	442.1125	+5	TONE 114.8	D-STAR		—	Towson, MD
7.2	K3OCM	Towson K3OCM K4USD-Net	443.8500	+5	CC6	DMR	K4USD-Net	—	Towson, MD
7.6	K3LPV	Essex K3LPV BM	449.9000	-5	CC1	DMR	BrandMeister 310588	—	Essex, MD
7.6	K3LPV	Essex K3LPV	449.2000	simplex	CC?	DMR		—	Essex, MD
8.6	N3HIA	Joppa N3HIA EchoLink	224.4800	-1.6	TONE 100.0	FM (analog)	EchoLink 245186	—	Joppa, MD
9.1	N3CDY	Baltimore N3CDY Interstate	927.0625	-25	CC1	DMR	Interstate	—	Baltimore, MD
10.0	KC3APF	Dundalk Key KC3APF WIRES-X	448.6750	-5	TONE 91.5	FM (analog) (FM,C4FM)	WIRES-X 30068	—	Dundalk, MD
10.3	N3CNJ	Fallston N3CNJ BM-S2	145.2700	-0.6	CC1	DMR	TGIF BM-S2	—	Fallston, MD
10.7	K3NXU	Cockeysville K3NXU	145.1900	-0.6	TONE 110.9	FM (analog)		—	Cockeysville, MD
10.7	KB3BHO	Cockeysville KB3BHO	448.5250	-5	TONE 82.5	FM (analog)		—	Cockeysville, MD
11.4	N3VSI	Larry - Edgewood N3VSI AllStar	442.9000	+5	TONE 127.3	FM (analog)	AllStar 28094 AllStar 497352	—	Larry - Edgewood, MD
11.4	N3ST	Timonium N3ST	449.6750	-5	TONE 167.9	FM (analog)		—	Timonium, MD
11.4	WN3S	Bel Air WN3S BM	439.0000	-5	CC1	DMR	BrandMeister 3197267	—	Bel Air, MD
12.1	no call listed	Abingdon Maryland	439.9750	simplex	TONE 107.2	FM (analog)		—	Abingdon, MD
12.1	K2EJ	Abingdon K2EJ AllStar	449.3750	-5	TSQL 107.2	FM (analog) (C4FM,DMR,FM)	AllStar 51587 EchoLink 167177 IRLP 4986 BrandMeister 312692	—	Abingdon, MD
12.1	K2EJ	Abingdon K2EJ AllStar	224.2200	-1.6	TSQL 110.9	FM (analog)	AllStar 51537	—	Abingdon, MD
12.1	K2EJ	Abingdon K2EJ AllStar	439.9750	simplex	TONE 107.2	FM (analog)	AllStar 51587 AllStar 515883	—	Abingdon, MD
12.1	K2EJ	Abingdon K2EJ AllStar	223.4200	simplex	TONE 110.9	FM (analog)	AllStar 51537	—	Abingdon, MD
12.5	KB3WHR	Bel Air KB3WHR Interstat	449.6125	-5	CC1	DMR	Interstate	—	Bel Air, MD
12.6	KD3CXK	Brooklyn KD3CXK BM	439.0650	-1	CC1	DMR	BrandMeister 3223379	—	Brooklyn, MD
13.1	K2SHF	Bel Air K2SHF AllStar	145.6700	simplex	TONE 77.0	FM (analog)	AllStar 547810 AllStar 547811	—	Bel Air, MD
13.3	KC3WRK	Bel Air KC3WRK	446.4600	simplex	CC?	DMR		—	Bel Air, MD
13.7	WA3KOK	Baltimore Haleth WA3KOK	442.2500	+5	TSQL 107.2	FM (analog) (FM,P25)		—	Baltimore, MD
15.1	KC3FHC	Bel Air KC3FHC	146.7750	-0.6	TSQL 146.2	FM (analog)		—	Bel Air, MD
15.1	KC3FHC	Bel Air KC3FHC	145.1200	-0.6	none	D-STAR		—	Bel Air, MD
15.1	KC3FHC	Bel Air KC3FHC	447.9875	-5	none	D-STAR		—	Bel Air, MD
15.1	KC3FHC	Forest Hill KC3FHC	449.7750	-5	TONE 162.2	FM (analog)		—	Forest Hill, MD
15.1	KC3FHC	Bel Air KC3FHC	1248.1000	simplex	none	D-STAR		—	Bel Air, MD
15.1	KC3FHC	Bel Air KC3FHC	1282.3000	-20	none	D-STAR		—	Bel Air, MD
16.0	N3EJT	Owings Mills N3EJT Not-Linked	147.1950	+0.6	CC1	DMR	Not-Linked	—	Owings Mills, MD
16.0	N3CDY	Owings Mills N3CDY Interstate	449.0750	-5	CC1	DMR	Interstate	—	Owings Mills, MD
16.0	N3CDY	Owings Mills N3CDY	927.5125	-25	TONE 156.7	FM (analog)		—	Owings Mills, MD
16.7	WB3DZO	Randallstown WB3DZO	443.3500	+5	TSQL 156.7	FM (analog) (FM,C4FM)		—	Randallstown, MD
16.7	KO3L	Bel Air KO3L BM	147.1200	+0.6	TSQL 114.8	FM (analog) (DMR,DV,FM)	BrandMeister 311985	—	Bel Air, MD
16.7	KO3L	Bel Air KO3L	223.9600	-1.6	none	FM (analog)		—	Bel Air, MD
17.1	W3CPO	Glen Burnie W3CPO BM	448.5000	-5	CC1	DMR	BrandMeister 312442201	—	Glen Burnie, MD
17.3	N3LPV	Glen Burnie N3LPV EchoLink	146.5650	in 144.6000	none	FM (analog)	EchoLink 242213	—	Glen Burnie, MD
17.3	N3MIR	Glen Burnie N3MIR	442.6000	+5	TONE 127.3	FM (analog)		—	Glen Burnie, MD
17.4	N3UR	Shawsville N3UR	224.9200	-1.6	none	FM (analog)		—	Shawsville, MD
17.6	KR3LC	Pasadena KR3LC BM	433.4500	in 446.4500	CC1	DMR	BrandMeister 312414103	—	Pasadena, MD
18.7	N3BNO	Aberdeen N3BNO BM	442.6500	+5	CC1	DMR	BrandMeister 3216998	—	Aberdeen, MD
18.8	KC3OQK	Ellicott City KC3OQK BM	439.0000	-5	CC1	DMR	BrandMeister 3159601	—	Ellicott City, MD
18.8	KC3OQK	Ellicott City KC3OQK BM	449.0000	-5	CC1	DMR	BrandMeister 315960101	—	Ellicott City, MD
18.8	N3EZD	Ellicott City N3EZD	224.3200	-1.6	none	FM (analog)		—	Ellicott City, MD
18.8	N3EZD	Ellicott City N3EZD	449.5250	-5	TONE 100.0	FM (analog)		—	Ellicott City, MD
21.3	W3CU	Millersville W3CU EchoLink	146.8050	-0.6	TONE 107.2	FM (analog)	EchoLink 90911	—	Millersville, MD
21.3	W3VPR	Millersville W3VPR	224.5600	-1.6	TONE 107.2	FM (analog)	🗓 5 nets	5 nets · 553 check-ins · 79 stations	Millersville, MD
21.3	W3CU	Millersville W3CU	449.1250	-5	TONE 107.2	FM (analog) (FM,C4FM)		—	Millersville, MD
21.7	K3CUJ	Columbia K3CUJ	147.1350	+0.6	TSQL 156.7	FM (analog) (FM,C4FM)		—	Columbia, MD
22.2	K3ARS	Worton K3ARS AllStar	147.3750	+0.6	TSQL 156.7	FM (analog)	AllStar 497350	—	Worton, MD
22.3	K3ARS	Worton K3ARS BM	447.7375	-5	CC1	DMR	BrandMeister 312414	—	Worton, MD
22.3	K3ARS	Worton K3ARS BM	442.7375	+5	CC1	DMR	BrandMeister 312414	—	Worton, MD
22.6	K4VSS	Rising Sun K4VSS BM	438.4500	-5	CC1	DMR	BrandMeister 322675501	—	Rising Sun, PA
22.7	WA3DZD	Jessup WA3DZD	146.7600	-0.6	TSQL 107.2	FM (analog)		—	Jessup, MD
22.7	WA3DZD	Jessup WA3DZD	444.0000	+5	TSQL 107.2	FM (analog)		—	Jessup, MD
22.7	KA3LAO	Jessup KA3LAO Interstat	442.7125	+5	CC1	DMR	Interstate-2-Network	—	Jessup, MD
22.8	WR3IRS	Havre de Grace WR3IRS Interstat	443.6500	+5	CC1	DMR	Interstate	—	Havre de Grace, MD
23.2	KC3FCQ	Arnold KC3FCQ BM	442.8750	+5	CC1	DMR	BrandMeister 312411801	—	Arnold, MD
23.7	N3KZ	Havre de Grace N3KZ	444.1500	+5	TSQL 131.8	FM (analog)		—	Havre de Grace, MD
23.8	W3CAM	Columbia W3CAM	224.8600	-1.6	none	FM (analog)		—	Columbia, MD
23.9	KB3HGW	Jessup KB3HGW BM	448.8000	-5	CC1	DMR	BrandMeister 321114701	—	Jessup, MD
24.3	KG1JAG	Town L0C4T0R KG1JAG BM	446.5000	-5	CC1	DMR	BrandMeister 321925001	—	Town, L0C4T0R, MD
24.4	KA2JAI	Millersville KA2JAI EchoLink	146.8050	-0.6	TSQL 107.2	FM (analog)	EchoLink 🗓 1 net	1 net	Millersville, MD
24.8	N3CNJ	Delta N3CNJ TGIF	147.1650	+0.6	CC1	DMR	TGIF	—	Delta, PA
24.9	N3HAZ	Annapolis N3HAZ BM	439.5500	in 433.5500	CC1	DMR	BrandMeister 3197367	—	Annapolis, MD
25.1	N3YMS	Chestertown N3YMS Interstate	441.6625	+5	CC1	DMR	Interstate	—	Chestertown, MD
25.2	K3PZN	Sykesville K3PZN	147.2850	+0.6	TONE 156.7	FM (analog)	🗓 1 net	1 net	Sykesville, MD
25.3	K3ARS	Chestertown Shor K3ARS	449.1750	-5	TONE 156.7	FM (analog)		—	Chestertown, MD
26.2	N3SCP	Gambrills N3SCP WIRES-X	442.5500	+5	TONE 107.2	FM (analog) (FM,C4FM)	WIRES-X 18557	—	Gambrills, MD
26.2	N3SCP	Gambrills N3SCP WIRES-X	447.5500	-5	DG-ID 00-00	Fusion (C4FM)	WIRES-X 18557	—	Gambrills, MD
26.6	KB3IAI	Gambrills KB3IAI BM	439.9000	in 438.2000	CC1	DMR	BrandMeister 3172111	—	Gambrills, MD
27.0	W3VPR	Crownsville W3VPR EchoLink	147.0750	+0.6	TSQL 107.2	FM (analog)	EchoLink 524902 🗓 5 nets	5 nets · 553 check-ins · 79 stations	Crownsville, MD
27.1	WA3KOK	Laurel WA3KOK IRLP	446.5000	simplex	TSQL 100.0	FM (analog)	IRLP 4332	—	Laurel, MD
27.4	K3CUJ	Columbia K3CUJ WIRES-X	449.4750	-5		Fusion (C4FM)	WIRES-X 30215	—	Columbia, MD
27.8	WA3SFJ	Port Deposit WA3SFJ AllStar	146.8500	-0.6	TONE 107.2	FM (analog)	AllStar 558300 🗓 1 net	1 net · 5 check-ins · 5 stations	Port Deposit, MD
27.8	WA3SFJ	Port Deposit WA3SFJ	449.8250	-5	TONE 167.9	FM (analog) (FM,C4FM)	🗓 1 net	1 net · 5 check-ins · 5 stations	Port Deposit, MD
27.9	W3LRC	Laurel W3LRC	442.5000	+5	TONE 156.7	FM (analog)		—	Laurel, MD
27.9	W4ATN	Laurel W4ATN	443.8000	+5	CC3	DMR		—	Laurel, MD
27.9	W4ATN	Laurel W4ATN	145.3900	-0.6	none	FM (analog)		—	Laurel, MD
28.3	K3AE	Shrewsbury K3AE	146.7000	-0.6	TONE 114.8	FM (analog) (C4FM,FM)		—	Shrewsbury, PA
28.3	K3AE	Shrewsbury K3AE K4USD	449.7250	-5	CC1	DMR	K4USD	—	Shrewsbury, PA
28.5	KB3CMA	Annapolis Broad KB3CMA	442.3000	+5	TSQL 107.2	FM (analog) (C4FM,FM)		—	Annapolis, MD
28.5	KB3CMA	Annapolis Broad KB3CMA Interstat	441.8375	+5	CC1	DMR	Interstate-3	—	Annapolis, MD
28.6	W3GAB	Stevensville W3GAB BM	433.8000	+5	CC1	DMR	BrandMeister 321788101	—	Stevensville, MD
28.6	W3SQN	Laurel W3SQN BM	442.9000	+5	CC1	DMR	BrandMeister 312418	—	Laurel, MD
28.8	W3YVV	Dayton W3YVV	927.5375	-25	TSQL 156.7	FM (analog)		—	Dayton, MD
28.9	K3PZN	Westminster K3PZN	145.4100	-0.6	TSQL 114.8	FM (analog)	🗓 1 net	1 net	Westminster, MD
28.9	K3PZN	Westminster K3PZN	449.8750	-5	TSQL 127.3	FM (analog) (C4FM,FM)	🗓 1 net	1 net	Westminster, MD
28.9	K3PZN	Westminster K3PZN	53.0900	-1	TSQL 107.2	FM (analog)	🗓 1 net	1 net	Westminster, MD
29.0	K3CUJ	Cooksville K3CUJ	147.3900	+0.6	TONE 156.7	FM (analog) (C4FM,FM)		—	Cooksville, MD
29.1	K3CUJ	Cooksville K3CUJ	448.2750	-5	TSQL 156.7	FM (analog) (FM,C4FM)		—	Cooksville, MD
29.8	N3RCN	Charlestown Wtr N3RCN	442.9500	+5	TONE 103.5	FM (analog)		—	Charlestown, MD
31.7	N3AGB	Ashton N3AGB	53.2500	-1	TSQL 100.0	FM (analog)		—	Ashton, MD
31.7	KC3BXH	Ashton KC3BXH EchoLink	147.0000	-0.6	TONE 156.7	FM (analog) (FM,P25)	EchoLink 105440	—	Ashton, MD
31.7	K3WX	Ashton K3WX	224.5400	-1.6	TONE 156.7	FM (analog)		—	Ashton, MD
31.7	KC3BXH	Ashton KC3BXH	443.1500	+5	TSQL 156.7	FM (analog) (FM,P25)		—	Ashton, MD
31.7	KC3BXH	Ashton KC3BXH IRLP	927.7250	-25	TONE 156.7	FM (analog)	IRLP 4088	—	Ashton, MD
32.3	N3KZS	Manchester N3KZS AllStar	146.8950	-0.6	TSQL 107.2	FM (analog)	AllStar 520690 IRLP 7070	—	Manchester, MD
32.4	KB3MEC	Galena KB3MEC	441.5000	+5	DCS 754	FM (analog)		—	Galena, MD
32.5	KB3MEC	Galena KB3MEC	224.0000	-1.6	TONE 131.8	FM (analog)		—	Galena, MD
32.6	WA3KOK	Ashton WA3KOK Interstat	442.2375	+5	none	FM (analog) (DMR,FM)	Interstate-Network	—	Ashton, MD
32.7	W3ETC	Centreville W3ETC	927.6500	-25	TSQL 156.7	FM (analog) (FM,P25)		—	Centreville, MD
32.7	KE3AO	Centreville KE3AO	146.9400	-0.6	TONE 107.2	FM (analog)		—	Centreville, MD
32.7	KE3AO	Centreville KE3AO	448.2250	-5	TONE 107.2	FM (analog) (FM,C4FM)		—	Centreville, MD
32.7	WA3KOK	Ashton WA3KOK	444.0500	+5	none	FM (analog) (FM,P25)		—	Ashton, MD
33.5	KY3O	Calverton KY3O BM	438.4500	-5	CC1	DMR	BrandMeister 318573701	—	Calverton, MD
33.8	WA3NAN	Greenbelt WA3NAN	146.8350	-0.6	TONE 114.8	FM (analog)		—	Greenbelt, MD
33.8	W3GMR	Greenbelt W3GMR	146.8800	-0.6	TSQL 77.0	FM (analog)		—	Greenbelt, MD
34.7	K3VOA	Silver Spring K3VOA AllStar	447.5750	-5	TONE 77.0	FM (analog)	AllStar 23919	—	Silver Spring, MD
34.7	W3VPR	Davidsonville W3VPR	147.1050	+0.6	TONE 107.2	FM (analog)	🗓 5 nets	5 nets · 553 check-ins · 79 stations	Davidsonville, MD
34.7	W3VPR	Davidsonville W3VPR	223.8800	-1.6	TONE 107.2	FM (analog)	🗓 5 nets	5 nets · 553 check-ins · 79 stations	Davidsonville, MD
34.7	W3VPR	Davidsonville W3VPR	444.4000	+5	TSQL 107.2	FM (analog)	🗓 5 nets	5 nets · 553 check-ins · 79 stations	Davidsonville, MD
34.8	K3ERA	Lanham DC Hosp K3ERA	447.3250	-5	TONE 110.9	FM (analog)	🗓 2 nets	2 nets · 39 check-ins · 15 stations	Lanham, MD
34.8	KX3B	Nottingham KX3B	146.7150	-0.6	TSQL 131.8	FM (analog)		—	Nottingham, PA
35.2	K3UCB	Olney K3UCB Interstate	442.9000	+5	CC1	DMR	Interstate-Network	—	Olney, MD
35.5	N3TPL	Holtwood Martic N3TPL BM	448.6250	-5	TSQL 114.8	FM (analog) (C4FM,DMR,FM)	BrandMeister 314277	—	Holtwood, PA
35.7	K3EJ	Holtwood K3EJ	51.9200	-0.5	TSQL 131.8	FM (analog)		—	Holtwood, PA
35.7	KX3B	Holtwood KX3B	448.7750	-5	CC1	DMR		—	Holtwood, PA
35.8	K3EJ	Holtwood K3EJ BM	927.7000	-25	CC1	DMR	BrandMeister 315089	—	Holtwood, PA
35.8	W3CGT	Mount Airy W3CGT	448.5750	-5	TONE 69.3	FM (analog)		—	Mount Airy, MD
35.9	N3CNJ	Red Lion N3CNJ TGIF	448.5250	-5	CC1	DMR	TGIF	—	Red Lion, PA
36.0	W3ZGD	Red Lion W3ZGD	146.8650	-0.6	TSQL 123.0	FM (analog) (FM,C4FM)		—	Red Lion, PA
36.0	N3NRN	Red Lion N3NRN	449.4250	-5	TSQL 123.0	FM (analog)		—	Red Lion, PA
36.1	K3LPV	Buck K3LPV AllStar	224.7800	-1.6	TONE 151.4	FM (analog)	AllStar 450770	—	Buck, PA
36.1	KX3B	Holtwood KX3B AllStar	146.7450	-0.6	TSQL 156.7	FM (analog) (DMR,FM)	AllStar 41033 BrandMeister 314257	—	Holtwood, PA
36.1	N3FYI	Lancaster N3FYI	224.3200	+0.6	TSQL 114.8	FM (analog)		—	Lancaster, PA
36.1	N3FYI	Lancaster N3FYI	53.8500	-0.6	TSQL 114.8	FM (analog)		—	Lancaster, PA
36.5	WB3DSY	Holtwood WB3DSY AllStar	448.1750	-5	TONE 94.8	FM (analog)	AllStar 608370	—	Holtwood, PA
36.5	N3EIO	Quarryville N3EIO	448.1750	-5	TONE 94.8	FM (analog)		—	Quarryville, PA
36.6	N3FYI	Lancaster N3FYI AllStar	145.3100	-0.6	TSQL 118.8	FM (analog)	AllStar 289891 EchoLink 951813 AllStar 289892	—	Lancaster, PA
36.6	N3FYI	Lancaster N3FYI AllStar	446.4750	-5	TSQL 114.8	FM (analog)	AllStar 289890 EchoLink 446475	—	Lancaster, PA
36.9	KA3CNT	Red Lion KA3CNT AllStar	224.8400	-1.6	TONE 131.8	FM (analog)	AllStar 452072 AllStar 452073	—	Red Lion, PA
37.3	W3EAX	College Park UMD W3EAX EchoLink	145.4900	-0.6	none	FM (analog)	EchoLink 318547	—	College Park, MD
37.3	N3TUK	Adelphi N3TUK AllStar	443.6625	+5	CC1	DMR	AllStar 43105 BrandMeister 313057	—	Adelphi, MD
37.4	W3MFP	Wheaton W3MFP BM	442.8875	+5	CC5	DMR	BrandMeister 312428101	—	Wheaton, MD
37.8	N3RCN	Elkton N3RCN	145.4700	-0.6	TSQL 94.8	FM (analog)		—	Elkton, MD
38.0	W3KIT	SHARI-UHF W3KIT AllStar	438.2875	simplex	TONE 203.5	FM (analog)	AllStar 547612 AllStar 547619	—	SHARI-UHF Maryland, MD
38.2	N3LHD	Upper Marlboro N3LHD Interstate	444.6500	+5	CC6	DMR	Interstate-c-Bridge-1	—	Upper Marlboro, MD
38.4	W3EOC	Oxford W3EOC	448.8750	-5	TONE 100.0	FM (analog)		—	Oxford, PA
39.0	KB3LYL	Damascus KB3LYL K4USD-Net	442.2125	+5	CC1	DMR	K4USD-Net	—	Damascus, MD
39.3	K3GMR	Bladensburg K3GMR EchoLink	146.6100	-0.6	TSQL 77.0	FM (analog)	EchoLink 796114	—	Bladensburg, MD
39.3	WA3RF	Cheverly WA3RF AllStar	441.0000	+5	TONE 173.8	FM (analog)	AllStar 57512	—	Cheverly, MD
39.9	W4ATN	Largo W4ATN MARC	443.7875	+5	CC3	DMR	DMR-MARC	—	Largo, MD
40.0	KA3LAO	Silver Spring KA3LAO	147.1800	+0.6	TONE 156.7	FM (analog) (FM,P25)		—	Silver Spring, MD
40.0	WB3GXW	Silver Spring WB3GXW EchoLink	147.2250	+0.6	TONE 156.7	FM (analog)	EchoLink 147225	—	Silver Spring, MD
40.0	N3AUY	Silver Spring N3AUY	29.6600	-0.1	TSQL 141.3	FM (analog)		—	Silver Spring, MD
40.0	N3AUY	Silver Spring N3AUY	449.0250	-5	TONE 156.7	FM (analog)		—	Silver Spring, MD
40.5	K3SCD	Middletown K3SCD BM	433.5500	in 439.5500	CC5	DMR	BrandMeister 321717501	—	Middletown, DE
40.8	W3MUM	Hanover Pigeon W3MUM	147.3300	+0.6	TONE 123.0	FM (analog)		—	Hanover, PA
41.0	KV3B	Rockville KV3B	146.9550	-0.6	none	FM (analog)		—	Rockville, MD
41.1	N3TPE	Middletown N3TPE BM	440.3500	+5	CC10	DMR	BrandMeister 311031	—	Middletown, DE
41.1	AD3J	Middletown AD3J WIRES-X	449.0250	-5	TSQL 131.8	FM (analog)	WIRES-X 11851	—	Middletown, DE
41.1	KB3VVB	Hanover Pigeon KB3VVB Interstat	445.2312	-5	CC1	DMR	Interstate-2	—	Hanover, PA
41.1	WA3YOO	North Bethesda WA3YOO	224.9400	-1.6	TONE 156.7	FM (analog)		—	North Bethesda, MD
41.4	WA3YOO	Rockville WA3YOO Interstat	443.9000	+5	TONE 156.7	FM (analog) (DMR,FM,P25)	Interstate-3-Network	—	Rockville, MD
41.5	WA3KOK	Rockville WA3KOK	927.1375	-25	TONE 156.7	FM (analog)		—	Rockville, MD
41.5	N3JFW	Rockville N3JFW K4USD-Net	442.4875	+5	CC1	DMR	K4USD-Net	—	Rockville, MD
41.5	KV3B	Rockville KV3B	442.7500	+5	TSQL 156.7	FM (analog) (C4FM,FM)		—	Rockville, MD
41.8	W3HZU	York W3HZU AllStar	53.9700	-1	TONE 127.3	FM (analog)	AllStar 27791 EchoLink 494127 🗓 1 net	1 net · 17 check-ins · 7 stations	York, PA
41.8	W3HZU	York RRC Park W3HZU AllStar	447.2750	-5	TONE 123.0	FM (analog) (DMR,FM)	AllStar 28445 EchoLink 276840 BrandMeister 314249 🗓 1 net	1 net · 17 check-ins · 7 stations	York, PA
41.8	W3WAN	York W3WAN AllStar	146.9250	-0.6	TSQL 74.4	FM (analog)	AllStar 27705	—	York, PA
41.8	WR3IRS	York Hallam WR3IRS Interstat	441.1500	+5	CC1	DMR	Interstate	—	York, PA
41.9	KA3LAO	Gaithersburg RF KA3LAO Interstat	441.8875	+5	CC1	DMR	Interstate-Network	—	Gaithersburg, MD
42.0	KV3B	Gaithersburg KV3B	53.2700	-1	TSQL 156.7	FM (analog)		—	Gaithersburg, MD
42.1	NC3M	Rockville NC3M AllStar	445.9750	simplex	TONE 100.0	FM (analog)	AllStar 47835	—	Rockville, MD
42.6	N3BBF	Potomac N3BBF BM	442.9000	+5	CC1	DMR	BrandMeister 314963	—	Potomac, MD
42.7	K3ERA	District Heights K3ERA EchoLink	145.2300	-0.6	TSQL 110.9	FM (analog) (FM,C4FM)	EchoLink 294165 🗓 2 nets	2 nets · 39 check-ins · 15 stations	District Heights, MD
43.0	W3CER	Middletown Emerg W3CER	442.5000	+5	TSQL 100.0	FM (analog)		—	Middletown, DE
43.0	W3WDC	Washington W3WDC BM	443.0125	+5	CC4	DMR	BrandMeister 312819502	—	Washington, DC
43.4	K3YGG	Bethesda NIH K3YGG EchoLink	145.2900	-0.6	TONE 156.7	FM (analog)	EchoLink 247014	—	Bethesda, MD
43.4	KC3TTN	Kelton Post KC3TTN	448.9750	-5		Fusion (C4FM)		—	Kelton, PA
43.4	K3LPV	Kelton 7& RD K3LPV AllStar	146.9250	-0.6	CC1	DMR	AllStar 50145 BrandMeister 310880	—	Kelton, PA
43.5	K3ZED	Jennersville SR K3ZED BM	447.8750	-5	CC1	DMR	BrandMeister 310463	—	Jennersville, PA
43.7	N3SLC	Christiana N3SLC	145.2500	-0.6	TONE 114.8	FM (analog) (FM,C4FM)		—	Christiana, PA
44.0	W3AGB	Washington W3AGB DMRVA	444.1625	+5	CC1	DMR	DMRVA	—	Washington, DC
44.0	W3AGB	Washington W3AGB K4USD	147.3600	+0.6	CC1	DMR	K4USD	—	Washington, DC
44.0	W3AGB	Washington W3AGB	1283.1000	-12	none	D-STAR		—	Washington, DC
44.0	K3WS	Washington K3WS AllStar	443.3750	-5	TONE 123.0	FM (analog)	AllStar 27701	—	Washington, DC
44.0	K3WS	Washington K3WS AllStar	447.3750	-5	TONE 123.0	FM (analog)	AllStar 27701	—	Washington, DC
44.0	W3UD	Newark U of D W3UD EchoLink	145.3100	-0.6	TSQL 141.3	FM (analog)	EchoLink 71786	—	Newark, DE
44.1	W3DRA	Newark Wtr W3DRA	146.7000	-0.6	TSQL 131.8	FM (analog) (FM,C4FM)		—	Newark, DE
44.1	W3DRA	Newark Wtr W3DRA	449.0250	-5	TSQL 131.8	FM (analog) (FM,C4FM)		—	Newark, DE
44.5	KA3LAO	Washington KA3LAO	145.1100	-0.6	CC1	DMR		—	Washington, DC
44.5	W3DCA	Washington W3DCA	147.2700	+0.6	TONE 100.0	FM (analog)		—	Washington, DC
44.5	N3ADV	Washington N3ADV	447.1750	-5	TONE 156.7	FM (analog)		—	Washington, DC
44.7	WA3KOK	Germantown WA3KOK	147.2700	+0.6	TONE 156.7	FM (analog) (FM,P25)		—	Germantown, MD
44.7	KV3B	Germantown KV3B	444.2000	+5	none	D-STAR		—	Germantown, MD
44.9	K3VOA	Washington Wilbu K3VOA AllStar	147.0450	+0.6	TSQL 77.0	FM (analog)	AllStar 23918	—	Washington, DC
45.1	WA3KOK	Washington WAMU WA3KOK IRLP	449.9750	-5	TSQL 107.2	FM (analog) (FM,P25)	IRLP 4000	—	Washington, DC
45.1	W3HAC	Washington W3HAC	147.3600	+0.6	CC1	DMR		—	Washington, DC
45.1	W3HAC	Washington W3HAC	1283.1000	-12	none	D-STAR		—	Washington, DC
45.2	W3NAB	Washington W3NAB AllStar	442.7000	+5	TONE 103.5	FM (analog)	AllStar 53645	—	Washington, DC
45.3	W3HZU	York RRC Park W3HZU AllStar	146.9700	-0.6	TONE 127.3	FM (analog)	AllStar 27303 EchoLink 9211 🗓 1 net	1 net · 17 check-ins · 7 stations	York, PA
45.4	KS3M	Abbottstown KS3M AllStar	147.5100	simplex	TONE 114.8	FM (analog)	AllStar 57337 AllStar 573370	—	Abbottstown, PA
45.6	W3DOS	Washington Harry W3DOS	145.1900	-0.6	TONE 151.4	FM (analog)		—	Washington, DC
45.8	N6PPP	Town L0C4T0R N6PPP BM	445.0000	-5	CC1	DMR	BrandMeister 3110809	—	Town, L0C4T0R, MD
45.9	WB3LGG	Cochranville WB3LGG	449.6750	-5	TSQL 94.8	FM (analog)		—	Cochranville, PA
46.0	W3HAC	Washington W3HAC	444.1625	+5	CC0	DMR		—	Washington, DC
46.0	N3BBF	Potomac N3BBF BM	447.8750	-5	CC1	DMR	BrandMeister 314982	—	Potomac, MD
46.2	N3AMW	Lancaster N3AMW BM	439.5500	in 439.2500	CC1	DMR	BrandMeister 3165113 BrandMeister 316511302	—	Lancaster, PA, PA
46.2	W3PC	Lancaster W3PC BM	448.5750	-5	CC1	DMR	BrandMeister 310159	—	Lancaster, PA
46.5	W3RRR	Lancaster Hosp W3RRR EchoLink	147.0150	+0.6	TSQL 118.8	FM (analog)	EchoLink 380019 🗓 2 nets	2 nets · 16 check-ins · 16 stations	Lancaster, PA
46.6	W3RRR	Lancaster Hosp W3RRR WIRES-X	449.5750	-5	TSQL 114.8	FM (analog) (FM,C4FM)	WIRES-X 11283 🗓 2 nets	2 nets · 16 check-ins · 16 stations	Lancaster, PA
47.4	K3CRK	Smyrna K3CRK	146.6550	-0.6	TONE 156.7	FM (analog)		—	Smyrna, DE
47.4	K3CRK	Smyrna K3CRK	443.0500	+5	TONE 156.7	FM (analog)		—	Smyrna, DE
47.5	N8HM	Arlington N8HM BM	438.4500	-5	CC1	DMR	BrandMeister 311101701	—	Arlington, VA
47.7	N3YMS	Hazlettville N3YMS Interstate	448.0750	-5	CC2	DMR	Interstate-2-Network	—	Hazlettville, DE
47.7	N3VEM	Witmer N3VEM AllStar	444.0000	+5	TONE 100.0	FM (analog)	AllStar 56001	—	Witmer, PA
47.8	N3VEM	Witmer N3VEM AllStar	444.2000	+5	TSQL 100.0	FM (analog)	AllStar 56001	—	Witmer, PA
48.0	W3CER	Newark Christian W3CER	444.9500	+5	TSQL 100.0	FM (analog)		—	Newark, DE
48.0	K3EMD	Easton URM Ctr K3EMD WIRES-X	442.2000	+5	TSQL 156.7	FM (analog) (FM,C4FM)	WIRES-X 33142	—	Easton, MD
48.5	WB4MJF	Arlington WB4MJF	145.1500	-0.6	TSQL 107.2	FM (analog)		—	Arlington, VA
48.5	W4WVP	Arlington W4WVP	145.4700	-0.6	TONE 107.2	FM (analog)		—	Arlington, VA
48.5	WA4HIS	Arlington WA4HIS	224.0600	-1.6	none	FM (analog)		—	Arlington, VA
48.5	W4CIA	Arlington W4CIA	441.4500	+5	TONE 110.9	FM (analog) (FM,C4FM)		—	Arlington, VA
48.5	AB4YP	Arlington AB4YP	443.2000	+5	TSQL 114.8	FM (analog)		—	Arlington, VA
48.5	K4AF	Arlington K4AF	444.5500	+5	TONE 88.5	FM (analog)		—	Arlington, VA
48.5	W4AVA	Arlington W4AVA	448.6250	-5	TONE 107.2	FM (analog)		—	Arlington, VA
48.5	W4WVP	Arlington W4WVP	449.3250	-5	TONE 151.4	FM (analog)		—	Arlington, VA
48.5	WA4EKJ	Arlington WA4EKJ	224.6200	-1.6	none	FM (analog)		—	Arlington, VA
48.8	N3YMS	Hazlettville N3YMS	147.3000	+0.6	TSQL 77.0	FM (analog)		—	Hazlettville, DE
48.9	KA3VSP	New Castle KA3VSP AllStar	223.4400	simplex	TONE 100.0	FM (analog)	AllStar 500960	—	New Castle, DE
49.4	N3ETH	Gettysburg N3ETH AllStar	144.0600	simplex	TONE 107.2	FM (analog)	AllStar 520692	—	Gettysburg, PA
49.5	K3MAD	Frederick K3MAD	147.0600	+0.6	TSQL 146.2	FM (analog)	🗓 2 nets	2 nets · 113 check-ins · 38 stations	Frederick, MD
49.5	K3MAD	Frederick K3MAD	224.2000	-1.6	TONE 123.0	FM (analog)	🗓 2 nets	2 nets · 113 check-ins · 38 stations	Frederick, MD
49.5	WA3KOK	Frederick WA3KOK	443.4000	+5	TSQL 136.5	FM (analog) (FM,P25)		—	Frederick, MD
49.7	K3CAL	Sunderland K3CAL EchoLink	146.9850	-0.6	TONE 156.7	FM (analog) (FM,C4FM)	EchoLink 389207 🗓 1 net	1 net	Sunderland, MD
49.7	N3PPH	Sunderland Mt N3PPH Interstate	441.6375	+5	CC1	DMR	Interstate-2	—	Sunderland, MD
49.8	W3FDK	Frederick W3FDK	145.1700	-0.6	none	D-STAR	🗓 2 nets	2 nets · 8 check-ins · 8 stations	Frederick, MD
49.9	N3ETH	Battlefield of G N3ETH AllStar	440.0500	simplex	TONE 107.2	FM (analog)	AllStar 520691	—	Battlefield of Gettysburg, PA
3.7	W3DAK offline	Middle River W3DAK BM	145.1700	-0.6	CC1	DMR	BrandMeister 312377	—	Middle River, MD
7.2	N2MCS offline	Baltimore N2MCS	442.9000	+5	CC?	DMR		—	Baltimore, MD
10.9	K3AYV offline	Baltimore Pigtow K3AYV EchoLink	442.9000	+5	TSQL 162.2	FM (analog)	EchoLink	—	Baltimore, MD
11.3	N3VSI offline	Edgewood N3VSI AllStar	146.5600	simplex	TSQL 127.3	FM (analog)	IRLP 8277 AllStar 29916	—	Edgewood, MD
16.2	K3BAY offline	Pasadena K3BAY IRLP	145.5400	simplex	TSQL 107.2	FM (analog)	IRLP 4717	—	Pasadena, MD
24.5	KP4IP offline	Millersville KP4IP BM	442.4000	+5	CC1	DMR	BrandMeister 310148	—	Millersville, MD
25.3	W3LRC offline	Jessup W3LRC BM	447.8500	-5	CC1	DMR	BrandMeister 314342	—	Jessup, MD
26.3	N3CNJ offline	Gatchellville N3CNJ TGIF	447.7250	-5	CC1	DMR (C4FM,DMR,P25)	TGIF	—	Gatchellville, PA
27.5	WA3KOK offline	Clarksville WA3KOK IRLP	144.9700	simplex	TSQL 107.2	FM (analog)	IRLP 4542	—	Clarksville, MD
27.5	WA3KOK offline	Laurel WA3KOK IRLP	144.4400	simplex	none	FM (analog)	IRLP 4173	—	Laurel, MD
27.8	WA3SFJ offline	Port Deposit WA3SFJ	53.8300	-1	TONE 94.8	FM (analog)	🗓 1 net	1 net · 5 check-ins · 5 stations	Port Deposit, MD
30.7	W3XJ offline	Bowie W3XJ	442.1500	+5	none	FM (analog)		—	Bowie, MD
33.4	WB3GXW offline	Silver Spring WB3GXW	444.2500	+5	TONE 156.7	FM (analog)		—	Silver Spring, MD
33.8	N3RCN offline	Elkton N3RCN	448.5750	-5	TONE 107.2	FM (analog)		—	Elkton, MD
36.3	N3HF offline	Silver Spring N3HF IRLP	443.4500	+5	TSQL 156.7	FM (analog)	IRLP 4712	—	Silver Spring, MD
37.3	W3ARL offline	Adelphi W3ARL	145.3700	-0.6	none	FM (analog)		—	Adelphi, MD
39.4	KB3SNM offline	Spring Grove KB3SNM IRLP	147.5400	simplex	TSQL 88.5	FM (analog)	IRLP 4014	—	Spring Grove, PA
44.9	K3VOA offline	Washington Wilbu K3VOA	448.5750	-5	TSQL 77.0	FM (analog)		—	Washington, DC
45.1	K3MRC offline	Washington K3MRC	145.4300	-0.6	TSQL 114.8	FM (analog) (FM,C4FM)		—	Washington, DC
45.1	KC3VO offline	Washington KC3VO	448.8750	-5	none	FM (analog)		—	Washington, DC
49.5	K3HP offline	Frederick K3HP AllStar	145.2500	-0.6	TONE 146.2	FM (analog)	AllStar 29523	—	Frederick, MD