LLS, they didn't confiscate, they just asked folks to quit transmitting, and folks by and large abided by the request.The FCC at the time assured that this was carried out (no operation), too.My F-I-L was a ham at the time. Of course, they drafted him and put him in the Signal Corps . . . !
I can certainly understand that! The Germans were busy putting clandestine shortwave operators in place (although the best known one turned out to be a double agent!)