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Frequency	Offset	Tone Up / Down	Location	State	County	Call	Modes
53.2500	-0.5 MHz	100.0	Ashton	MD	Montgomery	N3AGB	FM
53.2700	-1 MHz	156.7	Gaithersburg	MD	Montgomery	KV3B	FM
145.1700	-0.6 MHz	74.4	Delaware	OH	Delaware	W8SMK	FM
145.1700	-0.6 MHz		St. Louis, Forest Park	MO	St Louis	K0KYZ	FM
145.2100	-0.6 MHz	123.0	Harrisburg	PA	Dauphin	KA3TKW	FM IRLP
145.2100	-0.6 MHz	100.0	Lithopolis	OH	Fairfield	KB8WQ	FM
145.2300	-0.6 MHz		Columbus	OH	Franklin	WB8MMR	FM
145.2900	-0.6 MHz	156.7	Bethesda, NIH	MD	Montgomery	K3YGG	FM EchoLink
145.2900	-0.6 MHz	123.0	Delaware	OH	Delaware	KA8IWB	FM
145.3700	-0.6 MHz		Adelphi	MD	Prince Georges	W3ARL	FM
145.3900	-0.6 MHz		Columbus	OH	Franklin	W8DIG	DSTAR
145.4300	-0.6 MHz	NAC 293 123.0	Columbus	OH	Franklin	N8PVC	FM P-25
145.4900	-0.6 MHz		Columbus	OH	Franklin	W8CMH	DSTAR
146.6100	-0.6 MHz	CSQ	Bladensburg	MD	Prince Georges	K3GMR	FM EchoLink
146.6400	-0.6 MHz	156.7	Frederick	MD	Frederick	K3ERM	FM
146.6700	-0.6 MHz	131.8	Columbus	OH	Franklin	W8ZPF	FM EchoLink Fusion
146.7000	-0.6 MHz	94.8	Lancaster	OH	Fairfield	K8QIK	FM EchoLink
146.7300	-0.6 MHz	141.3	Frederick, Gambrill State Park	MD	Frederick	W3FDK	FM AllStar EchoLink
146.7600	-0.6 MHz	123.0	Columbus	OH	Franklin	W8AIC	FM
146.8800	-0.6 MHz	77.0	Greenbelt	MD	Prince Georges	W3GMR	FM
146.9400	-0.6 MHz	100.0	Clear Spring, Fairview Mountain	MD	Washington	W3CWC	FM Fusion
146.9550	-0.6 MHz	CSQ	Rockville	MD	Montgomery	KV3B	FM
146.9700	-0.6 MHz	123.0	Columbus	OH	Franklin	W8AIC	FM
147.0000	-0.6 MHz	NAC 293 156.7	Ashton	MD	Montgomery	KC3BXH	FM EchoLink P-25
147.0300	+0.6 MHz	71.9	Lancaster	OH	Fairfield	K8QIK	FM EchoLink
147.0600	+0.6 MHz	NAC 293 94.8	Columbus	OH	Franklin	K8DDG	FM P-25
147.0600	+0.6 MHz	146.2	Frederick	MD	Frederick	K3MAD	FM
147.1800	+0.6 MHz	NAC 293 156.7	Silver Spring	MD	Montgomery	KA3LAO	FM P-25
147.2250	+0.6 MHz	156.7	Silver Spring	MD	Montgomery	WB3GXW	FM EchoLink
147.2400	+0.6 MHz	NAC 293 179.9	Columbus	OH	Franklin	K8DRE	FM P-25
147.2700	+0.6 MHz	NAC 293 156.7	Germantown	MD	Montgomery	WA3KOK	FM P-25
147.3000	+0.6 MHz	146.2	Bluemont, Blue Ridge	VA	Loudoun	N3JLT	FM
147.3300	+0.6 MHz	203.5	Chantilly, Dulles Airport	VA	Loudoun	K4IAD	FM
224.2000	-1.6 MHz	123.0	Frederick	MD	Frederick	K3MAD	FM
224.3800	-1.6 MHz		Canal Winchester	OH	Franklin	KA8ZNY	FM
224.5400	-1.6 MHz	156.7	Ashton	MD	Montgomery	K3WX	FM
441.8000	+5 MHz	141.3	Frederick, Gambrill State Park	MD	Frederick	W3FDK	FM Fusion WIRES-X
441.9625	+5 MHz	CC1	Frederick, Gambrill State Park	MD	Frederick	K3DO	DMR DSTAR
442.2375	+5 MHz	CC1	Ashton	MD	Montgomery	WA3KOK	DMR
442.5000	+5 MHz	82.5	Gahanna	OH	Franklin	KB8SXJ	FM
442.6000	+5 MHz	114.8	Columbus, Ohio State University	OH	Franklin	W8LT	FM
442.6500	+5 MHz		Columbus	OH	Franklin	W8DIG	DSTAR
442.8000	+5 MHz	NAC 797 79.7	Frederick	MD	Frederick	N3ITA	FM EchoLink P-25
443.0625	+5 MHz		Stoutsville	OH	Fairfield	KD8GRN	Fusion WIRES-X
443.1500	+5 MHz	NAC 293 156.7	Ashton	MD	Montgomery	KC3BXH	FM P-25
443.4000	+5 MHz	NAC 293 136.5	Frederick	MD	Frederick	WA3KOK	FM P-25
443.4250	+5 MHz	71.9	Columbus	OH	Franklin	NG8N	FM Fusion WIRES-X
443.7750	+5 MHz	141.3	St. Louis, Pine Street and Tucker Street	MO	St Louis City	W0MJ	FM Fusion WIRES-X
443.9000	+5 MHz	CC1 NAC 293 156.7	Rockville, Montgomery County Executive Building	MD	Montgomery	WA3YOO	FM DMR P-25
444.1000	+5 MHz		Columbus	OH	Franklin	N8YMT	Fusion WIRES-X
444.1000	+5 MHz	167.9	Frederick, Gambrill Mountain	MD	Frederick	N3ST	FM
444.2000	+5 MHz	151.4	Columbus	OH	Franklin	W8AIC	FM
444.2000	+5 MHz		Germantown	MD	Montgomery	KV3B	DSTAR
444.3500	+5 MHz	100.0	Frederick, Braddock Mountain	MD	Frederick	W3ARK	FM
444.8000	+5 MHz		Frederick, Gambrill Mountain	MD	Frederick	W3FDK	DSTAR
448.4250	-5 MHz	100.0	Frederick, Gambrill State Park	MD	Frederick	K3ERM	FM Fusion WIRES-X
927.7250	-25 MHz	156.7	Ashton	MD	Montgomery	K3WX	FM IRLP
1285.0000	-20 MHz		Columbus	OH	Franklin	W8DIG	DSTAR

I-270 Amateur Radio Repeaters