What frequency band is used by a SART?

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Multiple Choice

What frequency band is used by a SART?

SARTs operate in the 9 GHz band, the X-band used by marine radars. A Search and Rescue Transponder is a radar transponder that, when it receives an interrogation from another ship’s radar in the 9 GHz range, replies with a distinctive radar signal. That response shows up on the interrogating radar as a recognizable pattern (often a row of dots), helping the operator determine the location of the distress beacon as the radar sweeps. The other options don’t fit this function: 406 MHz is for satellite distress beacons, 3 GHz and S-band refer to different radar/satellite bands not used for SARTs.

SARTs operate in the 9 GHz band, the X-band used by marine radars. A Search and Rescue Transponder is a radar transponder that, when it receives an interrogation from another ship’s radar in the 9 GHz range, replies with a distinctive radar signal. That response shows up on the interrogating radar as a recognizable pattern (often a row of dots), helping the operator determine the location of the distress beacon as the radar sweeps. The other options don’t fit this function: 406 MHz is for satellite distress beacons, 3 GHz and S-band refer to different radar/satellite bands not used for SARTs.

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