I've found a way to have an infinite amount of time on the Specialist satellite scanner.
This only works in Spy Hunt, so keep that in mind.
To do this, here are the steps.
Step 1: Make sure you become a spy by getting at least 1 intel case.
Step 2: Take out the scanner and wait until it finishes scanning and the people start appearing
Step 3: Now you need to die while you are still able to see people via the satellite.
Step 4: Once you respawn, you will be able to see everyone as if the satellite were still running.
This works still even if you die. It will end when the game ends.