Definition
An AIS-SART transmits its GNSS position on the two AIS frequencies, 161.975 and 162.025 MHz, sending a burst of position reports each minute so it appears on nearby AIS receivers and ECDIS as a distinctively marked active SART target. Range is essentially VHF line of sight, commonly some five to ten miles from a small vessel. It gives numeric position rather than the radar SART's relative bearing and range pattern.
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