I can hear Baker Peak - Comanche Co and OHP Troop G and M up here in NW Washita county on I-40 most nights up to about 10 Am. It shows up in the evening around 9 PM. Thats off an inside antenna. I would probably be able to here it all day if i had the outdoor antenna.
There is no need to reporgram radios for new (or moved or decommissioned) sites.
It could be on the air but not yet operational. They need to test everything first. It might not be connected to the system controller yet.
When the new site is ready they will set it up in the system controller, the cc will show it is there and the surrounding sites will broadcast it as a neighbor. Then the user radios will find it themselves.
The only time user radio reprogramming is needed is if talkgroups were added or removed for a new or old user. Some systems even have over the air programming so they don't need to touch the user radios. I don't know if OKWIN is like that.