is this customs or fbi? they call it the victor channel and that they would later communicating with ground units on a g channel which both agencies have. thanks
One has to wonder if you are hearing aircraft working the Washington Center remote outlet at Martinsburg,
WV. You do not say where you are, but looking at other posts, it looks like possibly Trenton, NJ area and you would hear some aircraft doing that there. Also, you did not say if you actually heard the ground stations and a callsign for an aircraft would certainly be helpful.