Over the past few days, I've found a few new items in the Nationals Park area. The Yards development is using a DMR repeater on 461.6375. Three groups have been identified:
461.6375 [ ] (DMR - Color Code 11, Slot 1, Group 501) (R)
461.6375 [ ] (DMR - Color Code 11, Slot 2, Group 502) (R)
461.6375 [ ] (DMR - Color Code 11, Slot 2, Group 503) (R)
The Courtyard Capitol Hill/Navy Yard is using 461.2125 [ d754] (S) for engineering.
DC Fire was using 851.8375 [156.7] (patched to Project 16 trunked system talkgroup 2096) for operations at Saturday's Nationals game.