Alight the Frequency is a simple puzzle in Gotham Knights. Four amplifiers and a sound device are connected to them. You must equalize the frequencies of the amplifier as shown on the screen of the device. You just need to match the frequency pattern on the four amps, that’s all, that’s it for now. So if you are stuck on this level, read below for the solution.
Align the frequency puzzle solution
In the screenshot above, you can see four frequency patterns. You just need to turn them on one by one on all four amps in the room. Start at the far right and interact with the device utility to see the frequencies displayed on the Sonic Devices screen. To make things easier, take a look at the image below. Follow in sequence and fire up the frequencies.
After that, the device will become active and the puzzle will end with a cutscene. Before that, there are two more puzzles, one is “Blast Door Explosion”and the second is “Sunbed Lab Puzzle”. After completing these two you will get the objective to get to the tower. Here you will find the Light up the Frequencies puzzle. Below are solutions for both just in case you can’t connect to an audio device yet.
How to solve the explosive door puzzle?
The goal is to destroy the red door and for that you will need a laser weapon. Directly above the door is a panel with two switches. Look for a blue laser beam. Use the left one to move the laser weapon up and then use the right switch to move it to the left side right above the truck. Now look straight ahead to see another small control panel and follow the blue light. Press the right switch to rotate the platform with the army truck above it.
Press the switch to put the truck facing the door and then return to the previous control panel, press the left switch to lower the laser weapon. To work, go back to the panel you used to turn the platform and hit the left switch to destroy the door.
How to solve the solarium laboratory puzzle?
The next one is a little puzzle in the solarium lab, to solve it just connect the third tube on the right with the second pink tube on the left. That’s it, this will give you the next goal to learn more about the sound test. This will take you to the tower where you will find a sound device and will have to adjust the frequencies.