To deactivate the scrambler at the diamond district comms tower go to the elevator on the side of the building and use the shock gloves to lower the elevator:

Spray explosive gel on the wall in front of you and destroy the wall. Use the disruptor to break the scrambler:

Then go back up to the tower and open the door. Use the cryptographic sequencer to hack into the terminal and deactivate the scrambler at the diamond district comms tower.