The NavSat 120SL is an antenna for reception of Ku-band TV-satellite transmissions aboard ships. To ensure durability in a marine environment, the antennas supporting structure is in stainless
steel and anodized aluminium and the reflector in glass/carbon-fibre composite. CPU, tracking receiver and motor drivers are housed in plug-in, water protected modules.The antenna uses the ships
gyro and GPS to locate the correct satellite and thereafter locks on to it with an internal tracking system. Changing satellites, monitoring signal strength and tracking perfomance etc. is made via
a PC with Windows 2k or XP operating system.