Mark 22 CA is a digital omnidirectional wide-band antenna (0.1-30 and 40-860 MHz) TV-AM-SW,FM Radio for maritime purposes. It is based on a construction of circular dipoles coupled to an amplifier via a broad-band filter.
This antenna is made of ABS plastic and filled with polyurethane foam. Mounting base is saltwater-proof special alloy and bolts in stainless acid-proof steel.
The advantages of the Mark 22 CA compared to an ordinary Yagi antenna system are: