The maximum coverage of one radar is 120 degrees, so it needs at least three radars to covers full 360 degree surveillance. Customers can install more than three radars to extend the maximum detection range. For example, when customers install three S-132A radars to cover 360 degree surveillance, the farthest detection range for RCS=0.03m2 target is 9.1 km. But if they deploy four S-132A radars under the same conditions, each radar covers 90 degree surveillance, than the farthest detection range can be increased to 9.4 km by revising the software.

Generally, most radars search 360 degree coverage with single rotating antenna. Therefore, the overall radar performance such as target data update time, maximum detection range, maximum detectable target speed and resolution, reliability, etc. are limited due to different antenna rotation speeds. For example, in order to increase the maximum detection range or resolution, people should reduce the antenna rotation speed, which in turn will reduces the target data update rate and maximum detectable target speed.
On the contrary, since the fixed antenna radar has no rotating parts, its overall performance can be adjusted flexibly according to user’s requirement, also the reliability is higher. Especially for high-speed moving targets such as missiles, artillery shells, mortars, etc., or tasks require high target data update rate such as missile guidance/gun fire control radar.

Rotary antenna radar only has search function and cannot real track a target due to its rotary antenna. It simulates the tracking tasks by connecting each target search point in each rotation. We refer this working model as “Track while Search (TWS)”.
T.Radar with fixed antenna can perform search and tracking tasks simultaneously. It can simultaneously track specific targets while sequentially searching the air, which is called “Track and Search (TAS)”. Meanwhile the search and tracking performance can be different according to user’s requirement. Like searching the entire airspace once every 10 seconds, but updating the data 10 times per second when tracking a specific target.

Generally, rotary antenna radar must ensure that the object could be continuously detected few times in 3〜5 consecutive rotations, so that the object can be defined as target not random noise. Therefore, the rotary antenna radar has maximum detectable target speed limitation. But for fix antenna T.Radar, there is no this limitation in theory.
Meanwhile, there are very few high-speed maneuvering targets in nature, so it is very easy to extract artificial high-speed maneuvering targets from signal processing. Conversely, low-speed moving targets are usually merged into nature environment, so it is more difficult to extract desired target accurately for radar design. T.Radar can extract low-speed flying drones from complex urban environments and distinguish birds or drones with powerful signal processing capabilities.