wdt_ID Call Sign Repeater Output Freq Repeater Input Freq CTCSS Access Tone Sponsor Notes 1
CTCSS optional; provides enhanced access. Wide DC Metro coverage; home base for many Montgomery County hams. Located in White Flint area.
Dual mode - offset for FM, + offset for P25. Located in Ashton, MD.
Located in Calverton, MD
156.7 or P25 NAC 293
Dual mode - FM analog or P25 digital. Analog users should program 156.7 (Tx) PL encode to access repeater AND 74.4 (Rx) decode to avoid having to listen to digital transmissions and co-channel interference..
NIHRAC home base, located on NIH main campus in Bethesda
Wide-coverage repeater located in White Oak, MD
Wide coverage repeater, operated by MCACS principals, available for any legitimate use. Located in White Flint area.
Maryland State RACES - Central Region Net - access to MEMA. Located in Davidsonville, MD
Primary Skywarn repeater, located in Bluemont, VA
Sponsored and used by PG County ARES, located in District Heights, MD
Also, check out this link for the Maryland/DC section Echolink repeater info.
Last but not least, please check out the Central Maryland Repeater Group (CMRG). This is a system of 5 UHF repeaters linked together to provide coverage to a majority of the State of Maryland. It also provides coverage to Washington, D.C., Northern Va. and South Central Pa. This repeater system is often used for inter-hospital communications during section-wide exercises, and could potentially also be used for EOC-to-EOC communications in a large-scale emergency. There are five repeaters in the constellation. From most locations in Montgomery County, it is possible to hit either the WA3PGC repeater in Laurel or the N3ST repeater in Frederick. See the list above for details.You can also listen to streaming audio from the system at https://www.broadcastify.com/listen/feed/33098, or possibly monitor via WebSDR.