This system is deprecated, and may no longer be in use or is superseded by another system.
| Site | Name | County | Lat | Lon | Range | Updated |
|---|---|---|---|---|---|---|
| 001 (1) | Bethesda, MD | Montgomery | 38.99998 | -77.10274 | 4 | 2017-07-15 |
| 003 (3) | Frederick, MD | Frederick | 39.41922 | -77.42065 | 6 | 2013-09-03 |