Project Zomboid Radios, Walkies, and AEBS

A working radio is the cheapest early-warning system in Knox County. The Automated Emergency Broadcast System (AEBS) still talks after every music station dies: weather for today and tomorrow, power-grid warnings, and the line that matters most—Air Activity detected—when the helicopter is scheduled. Walkie talkies then keep a co-op group on one frequency when someone is two blocks deep in a basement.

This guide covers how to find AEBS on Build 42.20.3, how walkies and ham sets differ, and how not to drain every battery in the glove box. Pair it with Water and Power Shutoff so grid warnings make sense, and with Servers and Co-op before you invent a second channel nobody monitors.

What AEBS actually says

AEBS lives on a random FM frequency between 88.0 and 108.0 MHz in 0.2 MHz steps. It is not the same number every save. At the top of most hours it identifies itself (the “Fiver Zero Two / Automated Broadcast System” sting) and then, in order:

• Power grid — fluctuations two days out, systems failing one day out, then Blackout on shutoff day and after.
• Weather — min/max temperature, humidity, wind, fog, rain, snow for today and tomorrow (the in-game day for forecasts starts around 1 AM).
• Harsh weather — thunderstorms, tropical storms, blizzards called a few days ahead when the sandbox allows them.
• Air Activity detected — helicopter day. This line often arrives at the end and refreshes around 7 AM. Wait a few seconds after the weather block before you click the radio off.

Unlike Life and Living on TV, AEBS never permanently signs off. Storms can garble reception. Secret military chatter is lore; it does not move zombies.

Listening while the hourly text plays also chips boredom. That is a side benefit, not a reason to leave volume at max in a windowed house—radios make noise.

Build 42 radio and television broadcasts explained

How to find the frequency fast

Do not click 88.0 through 108.0 on day one unless you enjoy menus.

1. Loot a household radio, car radio, or US Army ham. Emergency vehicles (police, ambulance) always store the AEBS preset. You do not need the car key to open the radio if the battery still has charge.
2. Open the device, read Presets, and write the MHz on paper or a map note.
3. Save that preset on the radio you will actually carry.

Manual scan still works: step +0.2 MHz until the channel name reads Automated Emergency Broadcast System. The signal meter helps—dead air versus a live station.

Build 42 also ships a handful of fixed civilian FM presets on many sets. Those talk about the Knox Event during week one and then fade. AEBS is the one you keep.

Walkie talkies versus ham versus house radios

• Walkie talkie — short range, pocketable, the co-op tool. Agree one channel in voice chat and write it down. Cheap consumer walkies whisper across a parking lot; higher-tier and military sets reach farther. Range is not infinite. A player in Louisville cannot babysit Rosewood on a toy walkie.
• Ham / premium radios — longer transmit and receive, heavier, often already holding AEBS. Good as a base station on a table, not as your only melee-hand item.
• House and car radios — receive AEBS and music. They need batteries or a living car battery. After shutoff, a generator keeps a plugged set alive if your client still treats that fixture as powered—verify in-game.

All of them eat batteries. Loot AA stacks with the same greed you loot pills. Turn the set off when you are not scanning the hour. A walkie left transmitting in a backpack is a beacon and a dead brick.

Co-op radio discipline

Pick one talk channel and one person who watches AEBS at 7 AM. Do not run three walkie frequencies “for roleplay” unless someone is dedicated comms. If a player dies, the new character needs the written MHz—do not assume they remember 92.4 from last week.

Public servers will hear you. Treat walkies like proximity chat with extra range: no base coordinates on an open channel if PvP is on.

Day-one radio loop

On spawn day, grab any radio you see while chasing a bag in Getting Started. Park it in the first safehouse, set AEBS, and sleep with a plan to listen at 7 AM. That single habit prevents “the helicopter surprised us” stories more than any trait.

Use forecasts to pick foraging weather (worms love rain) and to skip fog-blind loot routes. Farmers should glance at the two-day outlook before planting—see Agriculture.

Common mistakes

• Turning the radio off at 6:58 and missing Air Activity.
• Assuming AEBS is always 107.6 because a YouTube save used that number.
• Carrying four walkies and zero batteries.
• Transmitting from a car with the engine off until the battery dies—then wondering why hotwire will not crank.
• Using a walkie as a flashlight substitute; it is not lighting.

Tune AEBS, write the number, and treat 7 AM like Life and Living. The broadcast is free intelligence. Ignoring it is how prepared bases still get a helicopter parade.