What was different about the transmitter built by Marconi?

Guglielmo Marconi's transmitter differed from earlier designs primarily in its use of a spark-gap transmitter, which generated high-voltage electrical sparks to produce radio waves. This allowed for the efficient transmission of signals over long distances, unlike previous systems that struggled with range and clarity. Additionally, Marconi's design incorporated a more effective antenna system, enhancing signal reception and transmission capabilities. Overall, his innovations laid the groundwork for modern wireless communication.