Dad got this at a Radio Shack in Beaverton, Oregon, decades ago. There is actually still a letter from the Radio Shack store in the box. I remember dad had this one and a home unit one, kept both by his chair in the living room.
I actually got busted(not by the cops, but by him) from information he gleaned from scanner traffic. Called me on my stunts when I got home that evening. That was the night I got the, “I aint gonna call the cops on you, but if they catch you I am gonna MAKE them throw the book at you!”