As a hero, your missions will not only revolve around combat and adventures. As a hero, you must also use your wits and skills in strategizing.
One of the missions you have to do that requires the latter is the Align the Frequencies objective. Here, you will be asked to go to Arkham Asylum wherein you have to solve four frequency puzzles.
This guide will show you how to solve these frequency puzzles easily.
To complete this objective, you just have to connect the four machines to each other by following the pattern of frequency.
As you can see from the picture, the screen in the middle shows the frequencies. This is actually a huge clue for you to know what order they need to activate.
If you take a look at each machine, there is a designated frequency on the screen.
Start with the machine on the right. Approach it and interact with it to change the frequency. Keep interacting until it copies the first set of frequencies on the screen in the middle.
It will turn green if the machine shows the correct one.