Complex sentence: KWIE has a transmitter located on Haven Mountain to the north of Ontario, whose signal range will encompass Hesperia, Diamond Bar, Murrieta and will reach as far as Cabazon.
Split into simpler sentences: KWIE has a transmitter located on Haven Mountain to the north of Ontario. Transmitter signal range will encompass Hesperia, Diamond Bar, Murrieta and will reach as far as Cabazon.