This website has been archived from TrainWeb.org/dispatchoffice to TrainWeb.US/dispatchoffice.
Chessie System
| Ch. 1 | Road | 160.2300 | ||
| Ch. 2 | Disp. | 160.3200 | ||
| Police | 160.8750 | |||
| Yard | 160.5300 | B&O Yard Ch. 1 | ||
| Yard | 160.2900 | B&OCT Yard Ch. | ||
| Yard | 161.1600 | C&O Yard Ch. 1 |