Complex sentence: WGH operates at 20,000 watts by day and 5000 watts at night; but to protect other stations on 1310 AM, it uses a directional antenna, sending much of the signal to the east.
Split into simpler sentences: WGH operates at 20,000 watts by day and 5000 watts at night. But to protect other stations on 1310 AM, it uses a directional antenna, sending much of the signal to the east.