I’m only asking bc I have noticed that tge Merrimack county sheriffs office 155.685 frequency isn’t as clear as it usually is. I wondered who services those types of repeaters?
Sometimes large counties/cities have their own internal radio shops.
Sometimes they have a contract with a local company.
Sometimes when they purchase the system they have a contract with the manufacturer, installer, or local shop.
Sometimes they may have an internal radio guy.
Really depends on the department. If the repeater is having issues, it could be a number of things, but the officers will complain. They might be waiting on parts or a tech.
Unlikely you'd hear any radio traffic regarding this, other than on the channel itself. Likely a tech might pop up to do some testing before and after the work.