Marine radar components include antenna, transmitter, receiver, display unit and processor. The antenna transmits and receives electromagnetic waves, usually mounted on a ship’s mast for optimal range. The transmitter generates the radar signal, which is sent through the antenna. The receiver captures returning echoes from objects. The display unit displays the processed radar information, usually in the form of a radar screen or chart plotter.
The processor analyzes the received signals to determine the position, distance and movement of detected objects.
Radar systems typically consist of several key components, including the antenna, transmitter, receiver, duplexer, signal processor, and display. The antenna is responsible for transmitting and receiving radar signals. The transmitter generates high frequency electromagnetic waves. The receiver captures the returned signals. The duplexer allows the same antenna to be used for transmission and reception.
The signal processor converts the received signals into a form that can be displayed and interpreted. The display presents the processed radar data to the user.
The two types of marine radar are X-band radar and S-band radar. X-band radar operates at a higher frequency (around 9 GHz) and provides high-resolution imaging, which is ideal for detecting marine small objects and navigate confined waters.
S-band radar operates at a lower frequency (around 3 GHz) and is better suited for long-term detection and operation in adverse weather conditions, such as heavy rain or fog, due to its better penetration by atmospheric humidity
