. >> reporter: chris haddock is the chief. after collecting months of data -- >> there's always going to be some spots we're not able to communicate in. >> reporter: one work-around is a mobile repeater that can go to the scene. >> in those dead spots, when we push the emergency button, that works. that overpowers it. >> reporter: chief haddock said the mobile repeater has greatly assisted his staff, and there's now consideration of buying additional units to further. >> the bottom line, we need to have great communication. place to ensure that. >> reporter: now, grant money helped pay for new radios and his confidence now in the system, well, in his words, quote, 100%. if there was any doubt in my mind that we shouldn't use it, we wouldn't. with this on your side update, jonathan walsh, newschannel5. >> i know we're not experiencing the kind of weather that you really want to be on a roller coaster right now, but the excitement is red hot at cedar point for their newest roller coaster. the theme park releasing this video of t