Yellowstone County Amateur Repeaters is used by local amateur radio operators as part of the network of amateur emergency service scanner repeaters that provide coverage ... See more of local emergency service broadcasts in Billings, Montana, United States as well as ham radio transmissions, including 147.200 (N7YHE) Billings, MT echo link, 147.100 (N7YHE) Park City Repeater, 147.360 (K7EFA) Red Lodge Repeater. The service is affiliated with the American Radio Relay League (ARRL).