Howdy,   Stationary radio units (all of them) do not transmit. You can still listen someone's broadcast but can't answer. Handheld walkie in your hand is the only way you can broadcast something now. If you place walkie on the ground you still can recieve, but can't transmit (even on the same tile, so this is not a proximity issue).   I've noticed it earlier (couple updates ago) but postponed the reporting assuming that it's been a known bug for some reason. But apparent