19.2 The family communication plan

The full plan (out-of-state contact, meeting points, standard messages, worksheet to fill out) is in chapter 1, section 1.7. Here you only add the radio layer:

1. Define your layers in order. 1) Text; 2) a brief call; 3) a message to your out-of-state contact; 4) two-way radio on the agreed channel; 5) a written note at the meeting point.
2. Assign radios. Each adult knows where their radio is, how to turn it on, and which channel to set it to without thinking.
3. Agree on listening times (section 19.12) so you don't have to leave the radios on all day.
4. Practice once a month: a test radio call at the agreed time.