The Search and Rescue Radar Transponder as a part of GMDSS is a subject to annual test during radio survey.
The purpose of an annual testing is to determine that SART is operational as defined in appropriate performance standards for Survival Craft Radar Transponders for use in Search and Rescue Operations, IMO Resolution A.802 (19).
Also Marine Orders require that a radar transponder must be inspected, tested and have its batteries replaced at intervals specified by its manufacturer.
Aboard ship, each SART shall be examined at least once a month to check how secure it is its mounting and for signs of damage.
It is not necessary to test the SART aboard ship routinely.
The SART is a safety device; it must be regularly checked at least every months as follows:
It is recommended not performing any ‘self-test’ whilst at sea, and if in port, the port authority should be advised prior to activation. Some SART’s “self-test” is in fact a live test, and inspection of the SART’s manufacturer’s manual will clarify this.
Should a SART test be required for some over-riding reason at sea, the ship should check its 3 cm radar to see if any vessels are in the range first.
A safety priority VHF DSC announcement should then be made prior to activating any live activation of the SART whilst at sea.
The SART need only be active for only 2 or 3 sweeps of the radar.
If the SART fails any of its bimonthly checks, the SART must be returned to the supplier or an approved service agent for investigation and/or servicing.
If the battery is beyond its expiry date, the SART must be returned to a Battery Replacement Center for a battery change. The battery is NOT user serviceable; DO NOT attempt to change it.
If the SART has been used in an emergency or its integrity seal is broken, then the SART must be returned for a battery change.