Complex sentence: Its daytime signal provides at least secondary coverage as far as Dayton, Ohio and Erie, Pennsylvania; under the right conditions its daytime signal reaches as far west as South Bend, Indiana and as far east as Toronto, Ontario.
Split into simpler sentences: Its daytime signal provides at least secondary coverage as far as Dayton, Ohio and Erie, Pennsylvania. Under the right conditions its daytime signal reaches as far west as South Bend, Indiana and as far east as Toronto, Ontario.