The following table lists the local repeaters most often used by MC ARES for its activities. An abbreviated list in ICS-205 format can be accessed this link.

Call Sign	Repeater Output Freq	Repeater Input Freq	CTCSS Access Tone	Sponsor	Notes
K3ERA	145.230	144.630	110.9	PG ARES	Sponsored and used by PG County ARES, located in District Heights, MD
K3YGG	145.290	144.690	156.7	NIHRAC	NIHRAC home base, located on NIH main campus in Bethesda
KV3B*	146.955	146.355	156.7	MARC	CTCSS optional; provides enhanced access. Wide DC Metro coverage; home base for many Montgomery County hams. Located in White Flint area.
WA3DZD***	146.760	146.160	107.2	MFMA	This repeater is part of a system of linked repeaters on 224.76 and 444.0 MHz.
K3WX	147.000	146.400	156.7	Ashton RCS	Dual mode – offset for FM, + offset for P25. Located in Ashton, MD.
W3VPR**	147.105	147.705	107.2	AARC	Maryland State RACES – Central Region Net – access to MEMA. Located in Davidsonville, MD
K3CUJ	147.135	147.735	156.7	CARA	Often used by Howard Co. RACES/ARES, located in Columbia, MD
KA3LAO	147.180	147.780	156.7	KA3LAO	Wide-coverage repeater located in White Oak, MD
WB3GXW	147.225	147.825	156.7	WB3GXW	Located in Calverton, MD
WA3KOK	147.270	147.870	156.7	NERA	Dual mode: Analog/P25. The repeater responds in the same mode as the input signal. Located in Germantown.
WA4TSC	147.300	147.900	146.2	WA4TSC	Primary Skywarn repeater, located in Bluemont, VA
K3CUJ	147.390	147.990	156.7	CARA	Dual mode: FM analog or Fusion (C4FM)
W3ATV	224.940	224.340	156.7	MACS	Wide coverage repeater, operated by MCACS principals, available for any legitimate use. Located in White Flint area.
WA3YOO	443.900	448.900	156.7 or P25 NAC 293	MC ACS	Dual mode – FM analog or DMR digital. Analog users should program 156.7 PL encode AND decode to avoid having to listen to digital transmissions.
K3CUJ	448.275	443.275	156.7	CARA	Repeater often used by Howard County ARES
WA3KOK	449.975	444.975	107.2	NERA	Repeater often used by DC ARES

NOTES

* The MARC 146.955 repeater has exceptional coverage of the DC area, and may be used by MC ARES for initial callup, situational awareness, and regional coordination. ARES operations will typically be conducted on the MCACS 443.900 repeater.

** The Anne Arundel Radio Club repeater, 147.105 MHz, is the primary RACES repeater for central Maryland and the preferred channel for communications with MDEM. This repeater is linked to a UHF repeater on 444.4 MHz. To avoid interference with Winlink operations on 2 meters, consider accessing this repeater on the UHF frequency.

*** The Maryland FM Association repeater, 146.760 MHz, is the secondary RACES repeater for central Maryland and the alternate channel for communications with MDEM. This repeater is part of a system of linked repeaters on 224.76 and 444.0 MHz. To avoid interference with Winlink operations on 2 meters, consider accessing this repeater on either of those bands.

The Maryland-DC Section holds a monthly EchoLink net on the third Friday of every month at 8:00 PM local time. If you would like to join in using RF, refer to the current edition of the Maryland/DC Section News for a list of participating Echolink repeaters.