Before revision: Once a researcher or organization receives state and federal permits, they only need to acquire the appropriate transmitters and attach them to their study objects, current transmitters' range (depending on size) is up to 10 miles .
After revision: Once a researcher or organization receives state and federal permits, they only need to acquire the appropriate transmitters and attach them to their study objects, current transmitters' range (depending on size) is up to 12 miles (20 kilometers) .