SARTs are search and rescue radar transponders required on ships over 500 gross registered tons. At least two SARTs are needed on larger ships, while one is sufficient for ships between 300-500 GRT. SARTs operate on 9GHz, have a standby time of 96 hours and transmit for 8 hours when triggered by an X-band radar within 8 nautical miles, potentially displaying up to 24 dots on the radar screen when within 1 nautical mile. Accuracy is around 0.62 nautical miles at longer ranges and 150 meters within 1 nautical mile.

1. SART Search and Rescue Radar Transponder

2. SART Carriage Requirements At least two on ships > 500 grt One on ships -300 – 500 grt If two SARTs and Free Fall LB ,then one must be inside the boat

3. SART Operates on 9Ghz Stand by time 96 hrs Transmit time 8 hrs Do not use with Radar Reflector

4. SART Triggered by x band with in a range of approx. 8 nm May show 24 dots when range less than 1 nm Use 6nm or 12nm range Error when range > 1nm abt 0.62nm Error when range<1 nm abt 150m Side lobe responses can be removed by anti-clutter sea control Detune in clutter conditions

5. SART

6. GMDSS VHF TRANSCIEVERS