Over half the ones I'm friends with have built a radio, but I have no idea if my friends are representative of the community as a whole. Also, it depends on wha

Over half the ones I'm friends with have built a radio, but I have no idea if my friends are representative of the community as a whole. Also, it depends on what you mean: I bet a very strong majority have built their own antennas, but building radios is certainly not as common.