RADAR SART vs AIS SART: Technical Differences and Regulations Explained
| Technical Differences | RADAR SART | AIS SART |
|---|---|---|
| Technology Used | Utilizes radar technology for distress signal detection and localization. | Utilizes the Automatic Identification System (AIS) for distress signal transmission and reception. |
| Signal Detection | Emits highly reflective radar signals to be detected on shipboard radar displays. | Transmits distress signals via the AIS system, received by nearby AIS-equipped vessels and shore-based AIS receivers. |
| Range | Range of several nautical miles, depending on radar system power and environmental conditions. | Range is limited to the reception range of AIS, typically up to 20-30 nautical miles, depending on antenna height. |
| Activation | Manually activated by switching on the device. | Can be manually or automatically activated, with automatic activation triggered by immersion in water or specific events. |
| Battery Life | Extended battery life, typically exceeding 96 hours. | Designed to provide continuous operation for an extended period, usually exceeding 96 hours. |
| Regulations | Compliant with IMO regulations and standards for performance and reliability. | Compliant with IMO regulations and standards for AIS equipment, including transmission protocols and messaging formats. |
| Visibility | Provides enhanced visibility on shipboard radar displays. | Facilitates identification and localization through AIS messages containing distress information, including position and vessel data. |
| Certification | Requires certification to meet international standards and regulations. | Requires certification to meet international AIS standards and regulations, including those established by IMO and SOLAS. |
| Usage Requirement | Not mandatory for all vessels but recommended for vessels operating in areas with radar surveillance. | Not mandatory for all vessels but recommended for vessels equipped with AIS and operating in areas with AIS coverage. |
| Integration | Standalone device, typically carried on vessels or individuals. | Can be integrated with existing AIS systems on vessels or survival equipment, ensuring accessibility during emergencies. |
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