The NCR jurisdictions use a tg set Marine 1 and Marine 2 (or Marine A / B for Charles County) for incidents along the Potomac River. The USCG is said to also have the ability to communicate on these tgs. Can anyone confirm that the Marine tgs are linked between the various TRS in the region? I image that they are used for river rescues, and when Trump plays golf at his club in Virginia (btw today is golf day.)