That 138.875 AM is an old tanker interplane frequency that's not used much these days. There was a bunch in that upper 138 mhz area and into the 139 mhz block. All AM mode.Central Kentucky.
Getting Multiple A/A on 138.875 AM mode with nothing showing in my area I can pin it too.
I believe this is a McQuire AFB freq New Jersey and one of the pilots kept talking about that base.
I guess it (could) be the boys in Buckeye MOA, they are up chatting on various freqs but these guys are a lot more clear and stronger but with the Tropo going on this morning who knows.
1130- GLARE 25 running patterns up and down the NJ coast.