Digital Antenna has simplified the installation of your antenna, while at the same time assuring you have a perfectly tuned antenna. A factory installed small diameter mini-connector allows you to drill a small 3/8" hole and then simply screw on the included PL259 connector. No soldering involved. All Digital antennas are designed to ensure long-lasting performance in the harshest conditions. A high-gloss urethane finish, over a strong fiberglass rod will look great for years. To reduce vibration from rough seas and maintain the performance characteristics, positioning foam is placed throughout the antenna. Digital's unique ferrite choke bead eliminates interference with electronics and directs all the radiating power to the antenna for maximum transmission and efficiency.