Growing up, my dad had a plethora of radios/communication devices: business radios in our vehicles, a 100' radio tower in our backyard, shortwave radios for backcountry flying, walkie talkies, handheld ham radios, CB radios, airplane radios, a radio telephone bridge, a radio telephone in his Jeep, remote audio and video transmission, and probably several other things I can't recollect. I remember visiting mountain top lookouts and testing radio connections. Many fun memories.