Because you need to route and install both a standard coax cable and a power cable, retrofitting your boat with the CL-6 differs a bit from installing a replacement VHF antenna, but this DIY project ...

Also, no USB connection is needed as you can connect it directly to your TV using a standard coaxial cable. Winegard Elite is another UHF VHF HDTV antenna you can opt for if not on a budget.