This is whats transmitting all that jibberish.
this might help you guys a little better looks like a list of local sdr's
i live near a guy with a CB station and used to pick him up on my TV amp. he would use echo and effects on his voice to be even more annoying. Eventually switched to using a different sound amplifier that was better shielded. As far as I know, he's still doing that shit.
its interesting to see these freq constantly changing