Complex sentence: The station provided a grade A signal to Orlando, and a grade B signal to Daytona Beach and Melbourne, unlike WMOD, which had no signal in Daytona Beach and a weak signal in Orlando.
Split into simpler sentences: The station provided a Grade A signal to Orlando and a Grade B signal to Daytona Beach and Melbourne. This was not the case for WMOD which had no signal in Daytona Beach and a weak signal in Orlando.