Hi all,
Recently, I was talking to a family friend who used to work for the Federal Signal research and development department in the late 1990s-early 2000s. He told me about a modulator prototype that was going to be tested, however the people who were transporting it to the testing location dropped the modulator off of the forklift accidentally in the warehouse. The modulator's housing shattered, and the electronics inside were heavily damaged. Apparently, Federal just gave up on the project after this incident.
Does anyone know anything else about this prototype modulator?