It can be found in a small shack on a table in the Middle SE of Spectacle Island.
1. Make sure the wires to the generator are all connected properly. Last thing we need is another short blowing out the generator - Randy!
2. The generator MUST be on before turning on the signal tower.
(I suggest you stay out of the water when flipping the generator switch, just sayin'.)
3. You'll know the signal is playing when - well, you'll just know. Once the feedback goes away it will sound like there's nothing coming out of the speakers. There is, but only the mirelurks can hear it.