This chamber's radio can barely be seen! It's on the edge of the panel that the energy ball dispenser is attached to.
How do I grab it?
You've got two options.
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Place a portal on the ceiling next to the panel, then crouch and try to grab it without falling in.
Throw yourself through the portal while pressing the 'grab' button repeatedly.
Both options are a lot less risky when you've solved the puzzle and the energy pellets have stopped spawning.
Where do I take it?
The light will turn green when you're near the platform that takes you up to the elevator.
Guide help
This is the low-spoiler guide for "Transmission Received (Radio 7/26)" puzzle in Portal. Unlike in normal walkthrough, you get gradual hints on how to solve the puzzle. Click the big button below to see your first hint. If the hint contains a spoiler, you will be warned about it before clicking.
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