Two ways to work with the range.
Bring a system to be tested, or commission an evaluation of someone else's. The method and the range specification are already public, so neither route starts with a pitch.
Requests
What happens after you send it
Two days
A reply from range scheduling
Whether the system fits the range, and if not, why not. That answer is free.
Two weeks
Scoping call and draft adversary brief
You see how we would attack the system before you commit to anything. Some vendors stop here, having got what they needed.
Next quarter
Range time
Slots are scheduled a quarter ahead. Integration weeks are booked closer in.