Portal 2 achievements

Portal 2

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There are a maximum of 50 Portal 2 achievements worth 1,700 (1,000)

124,574 tracked gamers have this game, 12,283 have completed it (9.86%)

Achievement Details

Final Transmission in Portal 2

Final Transmission33 (20)

Find the hidden signal in one of the Rat Man's dens

  • Unlocked by 46,841 tracked gamers (38% - TA Ratio = 1.63) 124,861  

Achievement Guide for Final Transmission

828,256 (488,995)
Achievement won on 20 Apr 11
TA Score for this game: 1,700
Posted on 21 April 11 at 00:06, Edited on 14 April 12 at 14:02
This solution has 151 positive votes and 1 negative vote. Please log in to vote.
Chapter 2, Chamber 6.

After you press the button for the first time, Glados will launch a bunch of garbage at you, one of the pieces is a handheld radio. Place one portal on the small landing platform to the right, and the other portal on the wall perpendicular to it. (See video). Go through the portals, and you'll end up in the room. Place the radio close to the desk, and the achievement will unlock.

Note: If you go through the portal backwards, you are less likely to lose the radio.
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