I had traffic on Station H, SOPS 1, 3, 4, 7. SOPS 1 was just State PD motorcycles doing road closures. UMass PD would have been busy and JFK Library Security, 408.300 would have been busy also. The FBI was doing radio checks in the clear, due to bad eyesight I could not see the freq. The PL may have been 167.9. This was a little while before the Prince's plane landed. On Tuesday there were 2 black H60's heading north right over me, flying low and fast while I was waiting for commuter rail about 3:45pm. On Wednesday before the Prince landed there were 2 H60's hovering off of Hull. Logan traffic was landing from the north. When the plane was entering the pattern an H60 from Hull went up to the Gloucester area the other one moved to a position east of Logan. Other big military aircraft were in the area also. The H60's had come from Joint Base Cape Cod. I was using a HP436 with the 842S antenna.