Kvf642 has 4000 units for example if a department finds it needs more radios, does that change need to be made to the license, or is that something that doesn’t need to be reflected in the license?
It is often used as part of frequency coordination. When the frequency is not protected and may have co-channel users, the amount of usage needs to be figured in. More radios means more air time, and that can be problematic for shared use.
Ideally the license would be updated and maybe even re-coordinated if a substantially higher number of users gets added.
"Usually" (as in, not always, not in every case, sometimes, maybe, never, always, 'there's always a special case', your milage may vary), public safety licenses are protected, not shared, and coordinated so there are no co channel users in the coverage contour. But RF spills over the imaginary lines that frequency coordinators use, and/or mobile units wander outside the coverage area, so there is some logic in taking all this into account.
