How many antennas does the SPS-73 system use?

The SPS-73 radar system is equipped with two antennas. This dual-antenna configuration allows the system to effectively utilize its capabilities for surface surveillance and navigation. Having two antennas enhances the radar's ability to detect and track multiple targets simultaneously while providing a more reliable solution for maritime operations. This setup supports various functions, including target tracking, collision avoidance, and situational awareness, making it suitable for the operational requirements of modern naval vessels. Using a single antenna would limit the system's effectiveness, while more than two antennas are not necessary for the specified functions of the SPS-73.