When Wilmington, Delaware's first radio station, WDEL, began broadcasting on July 22, 1922, the station needed a tall antenna and lots of buried copper cable to transmit its signal.  Radio receivers at the time were mostly homemade and involved a piece of crystalline mineral and a wire coil.

Over many decades in Wilmington, both the broadcasting and receiving equipment improved. In the mid-1920s this meant store-bought radios. In the 1930s this meant car radios. In the 1960s this meant transistor radios. In the 1970s this meant boom boxes. And, in the 1980s this meant Walkmen. But, despite these improvements, the fundamental technology of big towers sending a signal through the air to a radio receiver remained the same.

In 1994, there was a new way for Wilmington consumers to listen to the radio. That was the year local stations across the country began streaming their signals over the internet and listeners could use their computers (later their smartphones and smart speakers) as receiving devices. No big antennas, no wires, and no actual radio needed.

In 2021, according to Nielsen, Wilmington radio reaches more local consumers than any other advertising media option.

Neilsen finds, too, that 34.4% of all consumers who listen to a Wilmington radio station over-the-air will, at some point during the month, also connect to a local station via the internet. 

Advertising is critical to the success of every Delaware, Maryland, and New Jersey small business owner.  One of the most powerful elements of any advertising campaign is how many people it reaches.

Nielsen, the world's largest consumer insights company, found that advertising reach has a more significant effect on sales than branding, recency, and context.

There are many ways a local business owner can advertise. This includes traditional media like Wilmington radio, local TV, and newspaper. It also includes online advertising options such as Facebook, Instagram, and Pandora.

They type of customer an individual business needs to reach depends on the goods and services the company sells. For instance, a daycare operator might want to reach households with young children. On the other hand, a real estate agent could be looking for consumers in the market to purchase a new home.