There are a lot of repeaters in and around the District, but here is a short list of the repeaters we hear most often from inside the beltway (and some nets that use them).
K3MRC
RX: 145.43000, TX: 144.83000
Uplink Tone: 114.8
DCMARC, Washington, D.C.
This site is currently inactive.
KV3B
RX: 146.95500, TX: 146.35500
Montgomery Amateur Radio Club, Maryland
Nets: Sunday 7:30pm MARC Net, Tuesday 8pm Emergency & Public Service Net.
W4AVA
RX: 146.62500, TX: 146.02500
Downlink Tone: 107.2, Uplink Tone: 107.2
Arlington Radio Public Service Club, Virginia
Nets: Sunday 8:30pm Emergency Response net, Monday 9pm Night Owls rag chew net, Wednesday 9pm RACES.
NV4FM
RX: 146.79000, TX: 146.19000
Downlink Tone: 77, Uplink Tone: 77
NVFMA, Fairfax, Virginia
Nets: Sunday 8:00pm.
W4HFH
RX: 147.31500, TX: 147.91500
Uplink Tone: 107.2
Alexandria Radio Club, Virginia
Nets: Thursday 8:00pm net.
WA3NAN
RX: 146.83500, TX: 146.23500
Goddard Amateur Radio Club, Maryland
Nets: Daily 12:00 Keep-in-Touch net, Thursday 9pm GARC net.
WA3KOK
RX: 449.97500, TX: 444.97500
Downlink Tone: 107.2, Uplink Tone: 107.2
NERA, Washington, D.C.
Nets: Monday 8 pm HacDC ARC net.
W3GMR
RX: 146.88000, TX: 146.28000
Downlink Tone: 77
GMRA, Greenbelt, Maryland
Nets: Monday 7:30pm Echolink net, Thursday 7:30pm “Roy” net.
W3VPR
RX: 147.10500, TX: 147.70500
Downlink Tone: 107.2, Uplink Tone: 107.2
Anne Arundel Radio Club, Maryland
Nets: Wednesday 8:00pm net, Wednesday 8:00am traffic net.
WA4TSC
RX: 147.30000, TX: 147.90000
Uplink Tone: 146.2
Bluemont, Virginia