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Transmission Received (Radio 1/26)2 hints left
There are 26 radios hidden throughout Portal, with 25 of them only appearing after you've beaten the game. This chamber's radio is the only exception.

To unlock the 'Transmission Received' achievement, you need to find all of these radios and take them to a specific spot.

There's no sure-fire way of knowing where these 'special spots' are, but the music will gradually be replaced by static when you're getting close.

Where is the radio?

On top of a table in the corner of the starting room. Press 'E' or the use key to pick it up.

Where do I need to take it?

Into the chamber's 'main' room where you find the cube. The light should turn green (indicating you've found the 'special spot') when you approach the button while holding the radio.

Guide help

This is the low-spoiler guide for "Transmission Received (Radio 1/26)" 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.

Up to "Collect"
Hints written by Kieron West
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