The Signal

The removable handles open doors or activate equipment. Match the motif on each handle to the matching socket.

• Square handle: outside the kitchen stove; use it on the door leading to the garage area inside base camp.
• Triangle handle: beside the fireplace; use it to open the garage shutter from outside.
• Cross handle: beside the radio; use it to activate the antenna equipment on the roof.
• Rectangle handle: on the outer edge of the roof; use it on the map-room door.
• Pentagon handle: outside base camp near the Antarctic Ocean; thaw it on the indoor stove, then use it to open the fence leading to the outdoor fuel equipment.

Operate the rooftop receiver and the radio inside base camp at the same time. The rooftop player uses the left and right buttons to move through eight channels.

The indoor player reshapes the radar signal: left and right change its width, while up and down change its height. The lower radar is also displayed on the rooftop unit, so the rooftop player must describe the target shape over voice chat.

When both waveforms match exactly, music or a radio broadcast will play. Four waveforms must be matched: the first three play music and the fourth carries the spoken coordinates.

Listen to the broadcast and convert each spoken code into a map coordinate. Each of the six messages represents a letter followed by a number.

The phonetic words give the first letter: Delta becomes D, Charlie becomes C, Beta becomes B, and Echo becomes E.

There are two map handles. One player controls the horizontal coordinate and the other controls the vertical coordinate. Hold both handles until the sliders meet at a target, then let the mechanism reset before entering the next coordinate.

A correct target is marked and the sliders return to the beginning. A wrong target plays a failure sound and erases every mark. Looking away from a handle also releases it and resets the slider.

This puzzle connects the fuel gauge inside the garage to two machines outside on the ocean side of camp. The target is the green line marked 6.

The garage gauge offers −8, −4, and −4. The two outdoor panels provide the values 8, 5, 5 and 8, 7, 4. Pull one outdoor lever on each panel, then pull the indoor lever whose value makes the final total equal 6.