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There’s a Call of Duty Black Ops 6 radio puzzle waiting for you in the hidden basement. Yes, that sounds creepy, but finding and solving this puzzle in the Black Ops 6 campaign is well worth your time, as it’ll lead to a reward of 1,000 credits - more than enough to get a bunch of weapon upgrades. Just keep in mind that you’ll have to solve the Black Ops 6 safe code puzzle and the piano puzzle as well.
To complete the Black Ops 6 radio signal puzzle, you must know how to tune the radio. If you need some assistance, this guide will show you how it works.
Black Ops 6 radio signal puzzle solution and code
The first part of the Black Ops 6 radio signal puzzle can be accessed after you've managed to hack the Black Ops 6 computer. That will open a room where you need to pick a lock and get a key. Then you can follow the radio signal to the door the key opens.
Inside you first need to tune signal you can see above by stretching and moving one of the waves to match the other. When that's done get a strange message looping over and over:
Mother returned with cereal and erased it from the shopping list on our chalkboard. She realised her purse was still at the market as she reached for the broom to tidy up.
This might seem like nonsense initially but if you haven't turned on your black light yet, do so. You'll see numbers written on everything. That strange message is key to picking out objects with specific numbers. Namely these:
- Cereal - to the left of the chalkboard, on the floor by the filing cabinets
- Chalkboard - In the corner of the room
- Purse - On the hatstand to the right of the chalkboard
- Broom - Right next to the chalkboard on the left
Find these objects around the room and you'll get the final code: 7218
While it's not immediately obvious what this is for, you are actually now done in the safe house basement. This code is the final reward for solving all these puzzles and will open the safe on the first floor upstairs.
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