Search & Rescue Transponder (SART)
medium
33 models total
A SART does not alert anyone that a distress is happening; it sits dormant until triggered, then answers a searching vessel's radar with arcs on its display, guiding the search to survivors once a rescue is already under way.
Read more — Search & Rescue Transponder (SART) explained ▾
What sets a SART apart from an EPIRB
A SART does not alert anyone that a distress is happening; it only becomes useful once a search is already under way. It sits dormant until triggered, then responds to a searching vessel's or aircraft's radar with a distinctive series of arcs on the searcher's display, letting them home in on survivors' exact position, which an EPIRB's satellite position fix cannot do at the short range and poor visibility typical of an actual rescue.
Main components
Transponder unit
A compact, waterproof, floating unit, carried in the survival craft or a grab bag, designed to be operated by an untrained survivor under stress; increasingly available alongside an AIS-based alternative.
Radar transponder function
On activation, the X-band unit listens for a searching vessel's or aircraft's 9 GHz radar pulses and responds with a swept-frequency reply that appears as a line of dots or arcs on the searcher's radar display, extending outward from the survivors' position, visible at a useful range well before visual or voice contact is possible.
AIS-SART alternative
An AIS-SART transmits a distress position and identity directly on AIS frequencies, showing on any AIS-equipped vessel's chart display as a distinct distress symbol rather than a radar arc pattern; it is carried as an alternative to the radar SART where the vessel's equipment fit specifically allows the substitution.
Battery and mounting bracket
A sealed battery gives a minimum stated operating life once activated, commonly stated around 96 hours standby and 8 hours active transmission for radar SARTs; the unit is stowed in a bracket in the survival craft, with a lanyard so it can be mounted upright once deployed.
Regulations and class
SOLAS Ch. III/IV sets carriage requirements for SARTs by vessel category, typically requiring at least one unit per side or per rescue boat and liferaft complement, depending on ship type. GMDSS radio survey checks battery expiry and self-test function; a SART with an expired battery or failed self-test is a deficiency at annual survey even though it is only used in an actual emergency.
Typical faults
- Battery expired: unit may respond to self-test but cannot be relied on for full duration in a real search.
- Bracket corrosion or mounting damage: unit cannot be secured upright for effective radar response once deployed.
- Antenna damage from rough handling in the liferaft locker: reduced response range exactly when range matters most.
- Self-test not performed at the required interval: failure only discovered during an actual search.
- Confusion between radar SART and AIS-SART carriage requirements: vessel non-compliant if the wrong type is fitted for its SOLAS category.
What to look for in a supplier
- Correct type, radar SART or AIS-SART, matched to the vessel's SOLAS carriage requirement, confirmed against the ship's actual equipment list, not assumed.
- Stated battery standby and active transmission duration meeting or exceeding the regulatory minimum.
- Self-test function that does not require an actual radar or AIS transmission to verify, avoiding unnecessary alerts to nearby traffic.
- Robust bracket and lanyard arrangement suited to liferaft or rescue boat stowage conditions.
Practice mounting and activating the SART in a drill, not just checking the self-test light: in an actual search, an inverted or badly mounted unit gives a weak, intermittent return exactly when a strong one is needed.
7 manufacturers · 33 models
Jotron
7
SART20
unverified
Gps integrated
nein
SOLAS Approved
ja
Common Failures & Inspection Points
- Expired or deteriorated battery condition prevents full-duration operation and is identified during inspection or self-test
- Antenna damage or corrosion reduces transmission reliability and may produce failed self-test indications
- Water ingress or damaged seals causes corrosion, intermittent operation or self-test failure
- Hydrostatic-release or mounting defects prevent correct float-free deployment or make the beacon difficult to release manually
- Programming or registration mismatch causes incorrect identification data and is detected during documentation or service checks
Service: Check mounting, accessibility, release arrangement, casing, antenna, labels and self-test indication. Confirm battery and release-device validity dates against the approved equipment records without inventing replacement intervals. Verify beacon identity and registration data. Functional testing beyond the permitted self-test must follow manufacturer and regulatory procedures.
Spare Parts: Normally keep the approved mounting and release hardware in serviceable condition and arrange certified replacement batteries or hydrostatic-release units as required; minor spares may include seals, lanyards and mounting fasteners where manufacturer-approved.
Use Cases: GMDSS-equipped merchant vessels, passenger ships, offshore units and other craft carrying approved emergency distress beacons.
SART30
unverified
Gps integrated
nein
SOLAS Approved
ja
Common Failures & Inspection Points
- Expired or deteriorated battery condition prevents full-duration operation and is identified during inspection or self-test
- Antenna damage or corrosion reduces transmission reliability and may produce failed self-test indications
- Water ingress or damaged seals causes corrosion, intermittent operation or self-test failure
- Hydrostatic-release or mounting defects prevent correct float-free deployment or make the beacon difficult to release manually
- Programming or registration mismatch causes incorrect identification data and is detected during documentation or service checks
Service: Check mounting, accessibility, release arrangement, casing, antenna, labels and self-test indication. Confirm battery and release-device validity dates against the approved equipment records without inventing replacement intervals. Verify beacon identity and registration data. Functional testing beyond the permitted self-test must follow manufacturer and regulatory procedures.
Spare Parts: Normally keep the approved mounting and release hardware in serviceable condition and arrange certified replacement batteries or hydrostatic-release units as required; minor spares may include seals, lanyards and mounting fasteners where manufacturer-approved.
Use Cases: GMDSS-equipped merchant vessels, passenger ships, offshore units and other craft carrying approved emergency distress beacons.
Jotron SART20-X
unverified
SOLAS Approved
ja
Common Failures & Inspection Points
- Expired or degraded battery capacity caused by age or poor storage can produce failed self-tests or reduced emergency operating capability
- Antenna damage, corrosion, or poor deployment condition can reduce transmission or homing performance
- Water ingress or damaged housing seals can cause corrosion, intermittent operation, or failed self-test
- Incorrect registration, programming, or position-data interface can result in missing or incorrect identification or location information
- Release bracket, hydrostatic release, activation switch, or lanyard defects can prevent proper deployment or activation when required
Service: Check mounting, accessibility, identification and registration data, battery and release-device expiry status where applicable, housing and antenna condition, seals, lanyard, and the manufacturer's permitted self-test. Do not make live distress transmissions during routine checks.
Spare Parts: Keep approved mounting or release hardware, seals and lanyard items where replaceable, and the manufacturer-specified battery or service kit through an authorized service arrangement. Exact parts and replacement intervals must follow the manufacturer documentation.
Use Cases: Used on merchant ships, passenger ships, offshore vessels, fishing vessels, workboats, survival craft, and personnel where the applicable distress or man-overboard function is required.
Jotron SART-GPS
unverified
SOLAS Approved
ja
Common Failures & Inspection Points
- Expired or degraded battery capacity caused by age or poor storage can produce failed self-tests or reduced emergency operating capability
- Antenna damage, corrosion, or poor deployment condition can reduce transmission or homing performance
- Water ingress or damaged housing seals can cause corrosion, intermittent operation, or failed self-test
- Incorrect registration, programming, or position-data interface can result in missing or incorrect identification or location information
- Release bracket, hydrostatic release, activation switch, or lanyard defects can prevent proper deployment or activation when required
Service: Check mounting, accessibility, identification and registration data, battery and release-device expiry status where applicable, housing and antenna condition, seals, lanyard, and the manufacturer's permitted self-test. Do not make live distress transmissions during routine checks.
Spare Parts: Keep approved mounting or release hardware, seals and lanyard items where replaceable, and the manufacturer-specified battery or service kit through an authorized service arrangement. Exact parts and replacement intervals must follow the manufacturer documentation.
Use Cases: Used on merchant ships, passenger ships, offshore vessels, fishing vessels, workboats, survival craft, and personnel where the applicable distress or man-overboard function is required.
Jotron SART 9GHz MED-C
unverified
Certification
MED
Frequency ghz
9
Common Failures & Inspection Points
- Battery depletion or expiry caused by age, self-discharge or poor storage, resulting in failed self-test or reduced emergency endurance
- Antenna or housing damage caused by impact, corrosion or water ingress, resulting in poor transmission or failed self-test
- Activation-switch, release or mounting failure caused by corrosion, contamination or mechanical damage, resulting in inability to activate or release the unit as intended
- Programming or identity error caused by incorrect replacement or configuration, resulting in incorrect identification being transmitted or recorded
- Internal electronic or self-test failure caused by component faults, resulting in warning indications or inability to complete the approved test
Service: Inspect the housing, antenna, mounting, release mechanism and markings for damage or deterioration. Check battery and hydrostatic-release dates where those items form part of the approved unit and replace them only with approved components. Perform self-tests strictly according to the manufacturer instructions and avoid unintended distress transmissions. Verify programmed identity and registration information after replacement or servicing. Keep the unit accessible and correctly secured in its approved location. Refer to manufacturer and regulatory documentation for exact servicing, shore-maintenance and test requirements.
Spare Parts: Emergency beacons and transponders normally rely on approved replacement batteries, release units, brackets, straps or complete replacement units rather than informal onboard electronic repair. Carry only manufacturer-approved accessories and replacement components permitted by the certification. Maintain any statutory spare units according to the vessel's safety-equipment inventory.
Use Cases: Distress alerting, survivor location and search-and-rescue support on SOLAS vessels, offshore units and other craft carrying the relevant approved emergency beacon or transponder.
Jotron SART 9GHz USCG-C
unverified
Certification
USCG
Frequency ghz
9
Common Failures & Inspection Points
- Antenna, feeder or casing damage reduces communication or locating performance and can cause self-test faults
- Battery, emergency-power or power-supply deterioration causes resets, low-voltage alarms or failure to operate
- Water ingress or corrosion causes intermittent operation, damaged connectors or internal faults
- Configuration, registration or identity errors cause incorrect vessel or beacon information
- Internal transceiver, display or control faults cause failed self-tests, missing communications or unavailable emergency functions
Service: Inspect antennas, casing, mounting, power supplies, emergency batteries, controls and programmed identity data as applicable. Perform only approved self-tests and permitted radio tests. Verify accessibility, release arrangements and emergency-power availability where required. Refer to manufacturer and regulatory documentation for the exact figure for test and replacement criteria.
Spare Parts: Carry fuses, handsets or microphones where applicable, approved batteries or chargers, antenna connectors, mounting or release parts and supported control modules.
Use Cases: Distress, safety, ship-to-ship, ship-to-shore and search-and-rescue service.
Jotron SART 9GHz IMO-C
unverified
Certification
IMO
Frequency ghz
9
Common Failures & Inspection Points
- Battery depletion or expiry caused by age, self-discharge or poor storage, resulting in failed self-test or reduced emergency endurance
- Antenna or housing damage caused by impact, corrosion or water ingress, resulting in poor transmission or failed self-test
- Activation-switch, release or mounting failure caused by corrosion, contamination or mechanical damage, resulting in inability to activate or release the unit as intended
- Programming or identity error caused by incorrect replacement or configuration, resulting in incorrect identification being transmitted or recorded
- Internal electronic or self-test failure caused by component faults, resulting in warning indications or inability to complete the approved test
Service: Inspect the housing, antenna, mounting, release mechanism and markings for damage or deterioration. Check battery and hydrostatic-release dates where those items form part of the approved unit and replace them only with approved components. Perform self-tests strictly according to the manufacturer instructions and avoid unintended distress transmissions. Verify programmed identity and registration information after replacement or servicing. Keep the unit accessible and correctly secured in its approved location. Refer to manufacturer and regulatory documentation for exact servicing, shore-maintenance and test requirements.
Spare Parts: Emergency beacons and transponders normally rely on approved replacement batteries, release units, brackets, straps or complete replacement units rather than informal onboard electronic repair. Carry only manufacturer-approved accessories and replacement components permitted by the certification. Maintain any statutory spare units according to the vessel's safety-equipment inventory.
Use Cases: Distress alerting, survivor location and search-and-rescue support on SOLAS vessels, offshore units and other craft carrying the relevant approved emergency beacon or transponder.
JRC (Japan Radio Co)
7
JQE-103
unverified
SOLAS Approved
ja
Common Failures & Inspection Points
- Battery expiry or degradation reduces endurance and may cause failed self-test or low-battery indication
- Antenna damage or poor deployment reduces transmitted signal effectiveness and may be visible during inspection
- Water ingress or corrosion damages electronics and can cause failed self-test or unreliable activation
- Manual or automatic release mechanisms can seize or be incorrectly fitted, preventing proper deployment
- Incorrect programming, identification data or registration can complicate distress identification even when the beacon transmits
Service: Inspect casing, antenna, mounting, seals, labels and release arrangement and perform only the approved self-test procedure. Verify battery and hydrostatic-release dates where applicable, beacon identification and required registration records. Do not perform unauthorized live distress transmissions; exact test procedures and replacement intervals must follow manufacturer and statutory documentation.
Spare Parts: Carry only maker-approved replaceable items such as mounting clips, lanyards or straps and batteries where onboard replacement is permitted; hydrostatic-release units and sealed battery packs are normally replaced as complete approved items.
Use Cases: Used for GMDSS distress alerting, survivor location, search-and-rescue and man-overboard response depending on the specific beacon category.
JQE-104
unverified
SOLAS Approved
ja
Common Failures & Inspection Points
- Battery expiry or degradation reduces endurance and may cause failed self-test or low-battery indication
- Antenna damage or poor deployment reduces transmitted signal effectiveness and may be visible during inspection
- Water ingress or corrosion damages electronics and can cause failed self-test or unreliable activation
- Manual or automatic release mechanisms can seize or be incorrectly fitted, preventing proper deployment
- Incorrect programming, identification data or registration can complicate distress identification even when the beacon transmits
Service: Inspect casing, antenna, mounting, seals, labels and release arrangement and perform only the approved self-test procedure. Verify battery and hydrostatic-release dates where applicable, beacon identification and required registration records. Do not perform unauthorized live distress transmissions; exact test procedures and replacement intervals must follow manufacturer and statutory documentation.
Spare Parts: Carry only maker-approved replaceable items such as mounting clips, lanyards or straps and batteries where onboard replacement is permitted; hydrostatic-release units and sealed battery packs are normally replaced as complete approved items.
Use Cases: Used for GMDSS distress alerting, survivor location, search-and-rescue and man-overboard response depending on the specific beacon category.
JRC (Japan Radio Co) JQE-103-X
unverified
SOLAS Approved
ja
Common Failures & Inspection Points
- Battery depletion or expiry caused by age, self-discharge or poor storage, resulting in failed self-test or reduced emergency endurance
- Antenna or housing damage caused by impact, corrosion or water ingress, resulting in poor transmission or failed self-test
- Activation-switch, release or mounting failure caused by corrosion, contamination or mechanical damage, resulting in inability to activate or release the unit as intended
- Programming or identity error caused by incorrect replacement or configuration, resulting in incorrect identification being transmitted or recorded
- Internal electronic or self-test failure caused by component faults, resulting in warning indications or inability to complete the approved test
Service: Inspect the housing, antenna, mounting, release mechanism and markings for damage or deterioration. Check battery and hydrostatic-release dates where those items form part of the approved unit. Perform self-tests strictly according to manufacturer instructions and avoid unintended distress transmissions. Verify programmed identity and registration information after replacement or servicing. Keep the unit accessible and correctly secured in its approved location. Refer to the manufacturer documentation for the exact figure for servicing, shore-maintenance and test requirements.
Spare Parts: Use approved replacement batteries, release units, brackets, straps or complete replacement units as allowed by certification. Maintain statutory spare units according to the vessel's safety-equipment inventory. Do not substitute uncertified internal components.
Use Cases: Distress alerting, survivor location and search-and-rescue support on SOLAS vessels, offshore units and other craft carrying the relevant approved beacon or transponder.
JRC (Japan Radio Co) JQE-105
unverified
SOLAS Approved
ja
Common Failures & Inspection Points
- Battery depletion or expiry caused by age, self-discharge or poor storage, resulting in failed self-test or reduced emergency endurance
- Antenna or housing damage caused by impact, corrosion or water ingress, resulting in poor transmission or failed self-test
- Activation-switch, release or mounting failure caused by corrosion, contamination or mechanical damage, resulting in inability to activate or release the unit as intended
- Programming or identity error caused by incorrect replacement or configuration, resulting in incorrect identification being transmitted or recorded
- Internal electronic or self-test failure caused by component faults, resulting in warning indications or inability to complete the approved test
Service: Inspect the housing, antenna, mounting, release mechanism and markings for damage or deterioration. Check battery and hydrostatic-release dates where those items form part of the approved unit. Perform self-tests strictly according to manufacturer instructions and avoid unintended distress transmissions. Verify programmed identity and registration information after replacement or servicing. Keep the unit accessible and correctly secured in its approved location. Refer to the manufacturer documentation for the exact figure for servicing, shore-maintenance and test requirements.
Spare Parts: Use approved replacement batteries, release units, brackets, straps or complete replacement units as allowed by certification. Maintain statutory spare units according to the vessel's safety-equipment inventory. Do not substitute uncertified internal components.
Use Cases: Distress alerting, survivor location and search-and-rescue support on SOLAS vessels, offshore units and other craft carrying the relevant approved beacon or transponder.
JRC SART 9GHz MED-C
unverified
Certification
MED
Frequency ghz
9
Common Failures & Inspection Points
- Expired or degraded battery capacity from age or poor storage causes failed self-tests or reduced emergency operating capability
- Antenna damage, corrosion, or poor deployment condition reduces transmission or homing performance
- Water ingress or damaged housing seals causes corrosion, intermittent operation, or failed self-test
- Incorrect registration, programming, or position-data interface can result in missing or incorrect identification or location information
- Release bracket, hydrostatic release, activation switch, or lanyard defects can prevent proper deployment or activation
Service: Check mounting, accessibility, identification and registration data, battery and release-device expiry status where applicable, housing and antenna condition, seals, lanyard, and the manufacturer-permitted self-test. Do not make live distress transmissions during routine checks.
Spare Parts: Keep approved mounting or release hardware, seals and lanyard items where replaceable, and arrange manufacturer-specified battery or service kits through an authorized service provider.
Use Cases: Used on merchant ships, passenger ships, offshore vessels, fishing vessels, workboats, survival craft, and personnel where the applicable distress-locating function is required.
JRC SART 9GHz USCG-C
unverified
Certification
USCG
Frequency ghz
9
Common Failures & Inspection Points
- Expired or degraded battery capacity from age or poor storage causes failed self-tests or reduced emergency operating capability
- Antenna damage, corrosion, or poor deployment condition reduces transmission or homing performance
- Water ingress or damaged housing seals causes corrosion, intermittent operation, or failed self-test
- Incorrect registration, programming, or position-data interface can result in missing or incorrect identification or location information
- Release bracket, hydrostatic release, activation switch, or lanyard defects can prevent proper deployment or activation
Service: Check mounting, accessibility, identification and registration data, battery and release-device expiry status where applicable, housing and antenna condition, seals, lanyard, and the manufacturer-permitted self-test. Do not make live distress transmissions during routine checks.
Spare Parts: Keep approved mounting or release hardware, seals and lanyard items where replaceable, and arrange manufacturer-specified battery or service kits through an authorized service provider.
Use Cases: Used on merchant ships, passenger ships, offshore vessels, fishing vessels, workboats, survival craft, and personnel where the applicable distress-locating function is required.
JRC SART 9GHz IMO-C
unverified
Certification
IMO
Frequency ghz
9
Common Failures & Inspection Points
- Expired or degraded battery capacity from age or poor storage causes failed self-tests or reduced emergency operating capability
- Antenna damage, corrosion, or poor deployment condition reduces transmission or homing performance
- Water ingress or damaged housing seals causes corrosion, intermittent operation, or failed self-test
- Incorrect registration, programming, or position-data interface can result in missing or incorrect identification or location information
- Release bracket, hydrostatic release, activation switch, or lanyard defects can prevent proper deployment or activation
Service: Check mounting, accessibility, identification and registration data, battery and release-device expiry status where applicable, housing and antenna condition, seals, lanyard, and the manufacturer-permitted self-test. Do not make live distress transmissions during routine checks.
Spare Parts: Keep approved mounting or release hardware, seals and lanyard items where replaceable, and arrange manufacturer-specified battery or service kits through an authorized service provider.
Use Cases: Used on merchant ships, passenger ships, offshore vessels, fishing vessels, workboats, survival craft, and personnel where the applicable distress-locating function is required.
McMurdo
6
Kannad SafeLink R10 SART
unverified
Gps integrated
ja
SOLAS Approved
ja
Common Failures & Inspection Points
- Expired or degraded battery capacity caused by age or poor storage can produce failed self-tests or reduced emergency operating capability
- Antenna damage, corrosion, or poor deployment condition can reduce transmission or homing performance
- Water ingress or damaged housing seals can cause corrosion, intermittent operation, or failed self-test
- Incorrect registration, programming, or position-data interface can result in missing or incorrect identification or location information
- Release bracket, hydrostatic release, activation switch, or lanyard defects can prevent proper deployment or activation when required
Service: Check mounting, accessibility, identification and registration data, battery and release-device expiry status where applicable, housing and antenna condition, seals, lanyard, and the manufacturer's permitted self-test. Do not make live distress transmissions during routine checks.
Spare Parts: Keep approved mounting or release hardware, seals and lanyard items where replaceable, and the manufacturer-specified battery or service kit through an authorized service arrangement. Exact parts and replacement intervals must follow the manufacturer documentation.
Use Cases: Used on merchant ships, passenger ships, offshore vessels, fishing vessels, workboats, survival craft, and personnel where the applicable distress or man-overboard function is required.
McMurdo R10-X
unverified
SOLAS Approved
ja
Common Failures & Inspection Points
- Expired or degraded battery capacity caused by age or poor storage can produce failed self-tests or reduced emergency operating capability
- Antenna damage, corrosion, or poor deployment condition can reduce transmission or homing performance
- Water ingress or damaged housing seals can cause corrosion, intermittent operation, or failed self-test
- Incorrect registration, programming, or position-data interface can result in missing or incorrect identification or location information
- Release bracket, hydrostatic release, activation switch, or lanyard defects can prevent proper deployment or activation when required
Service: Check mounting, accessibility, identification and registration data, battery and release-device expiry status where applicable, housing and antenna condition, seals, lanyard, and the manufacturer's permitted self-test. Do not make live distress transmissions during routine checks.
Spare Parts: Keep approved mounting or release hardware, seals and lanyard items where replaceable, and the manufacturer-specified battery or service kit through an authorized service arrangement. Exact parts and replacement intervals must follow the manufacturer documentation.
Use Cases: Used on merchant ships, passenger ships, offshore vessels, fishing vessels, workboats, survival craft, and personnel where the applicable distress or man-overboard function is required.
McMurdo R10-GPS
unverified
SOLAS Approved
ja
Common Failures & Inspection Points
- Battery depletion or expiry caused by age, self-discharge or poor storage, resulting in failed self-test or reduced emergency endurance
- Antenna or housing damage caused by impact, corrosion or water ingress, resulting in poor transmission or failed self-test
- Activation-switch or release-mechanism failure caused by corrosion, contamination or mechanical damage, resulting in inability to activate or release as intended
- Programming or identity error caused by incorrect replacement or configuration, resulting in wrong identification being transmitted or recorded
- Self-test or internal electronic failure caused by component faults, resulting in warning indication or inability to complete the approved test
Service: Inspect the housing, antenna, mounting bracket, release mechanism and markings for damage or deterioration. Check battery and hydrostatic-release dates where those items are part of the approved unit and replace them only with approved components. Perform self-tests strictly according to the manufacturer instructions and avoid unnecessary live distress transmissions. Verify programmed identity and registration information after replacement or servicing. Keep the unit accessible and correctly secured in its approved location. Refer to manufacturer and regulatory documentation for exact servicing, shore-maintenance and test requirements.
Spare Parts: Emergency beacons and transponders generally rely on approved replacement batteries, release units, brackets or straps rather than informal onboard electronic repair. Carry only manufacturer-approved accessories and replacement components allowed by the certification. Maintain any required spare units according to the vessel's statutory safety-equipment inventory.
Use Cases: Distress alerting, survivor location and search-and-rescue support on SOLAS vessels and other craft carrying the relevant approved emergency beacon or transponder.
McMurdo SART 9GHz MED-C
unverified
Certification
MED
Frequency ghz
9
Common Failures & Inspection Points
- Expired or degraded battery capacity caused by age or poor storage can produce failed self-tests or reduced emergency operating capability
- Antenna damage, corrosion, or poor deployment condition can reduce transmission or homing performance
- Water ingress or damaged housing seals can cause corrosion, intermittent operation, or failed self-test
- Incorrect registration, programming, or position-data interface can result in missing or incorrect identification or location information
- Release bracket, hydrostatic release, activation switch, or lanyard defects can prevent proper deployment or activation when required
Service: Check mounting, accessibility, identification and registration data, battery and release-device expiry status where applicable, housing and antenna condition, seals, lanyard, and the manufacturer's permitted self-test. Do not make live distress transmissions during routine checks.
Spare Parts: Keep approved mounting or release hardware, seals and lanyard items where replaceable, and the manufacturer-specified battery or service kit through an authorized service arrangement. Exact parts and replacement intervals must follow the manufacturer documentation.
Use Cases: Used on merchant ships, passenger ships, offshore vessels, fishing vessels, workboats, survival craft, and personnel where the applicable distress or man-overboard function is required.
McMurdo SART 9GHz USCG-C
unverified
Certification
USCG
Frequency ghz
9
Common Failures & Inspection Points
- Expired or degraded battery capacity caused by age or poor storage can produce failed self-tests or reduced emergency operating capability
- Antenna damage, corrosion, or poor deployment condition can reduce transmission or homing performance
- Water ingress or damaged housing seals can cause corrosion, intermittent operation, or failed self-test
- Incorrect registration, programming, or position-data interface can result in missing or incorrect identification or location information
- Release bracket, hydrostatic release, activation switch, or lanyard defects can prevent proper deployment or activation when required
Service: Check mounting, accessibility, identification and registration data, battery and release-device expiry status where applicable, housing and antenna condition, seals, lanyard, and the manufacturer's permitted self-test. Do not make live distress transmissions during routine checks.
Spare Parts: Keep approved mounting or release hardware, seals and lanyard items where replaceable, and the manufacturer-specified battery or service kit through an authorized service arrangement. Exact parts and replacement intervals must follow the manufacturer documentation.
Use Cases: Used on merchant ships, passenger ships, offshore vessels, fishing vessels, workboats, survival craft, and personnel where the applicable distress or man-overboard function is required.
McMurdo SART 9GHz IMO-C
unverified
Certification
IMO
Frequency ghz
9
Common Failures & Inspection Points
- Expired or degraded battery capacity caused by age or poor storage can produce failed self-tests or reduced emergency operating capability
- Antenna damage, corrosion, or poor deployment condition can reduce transmission or homing performance
- Water ingress or damaged housing seals can cause corrosion, intermittent operation, or failed self-test
- Incorrect registration, programming, or position-data interface can result in missing or incorrect identification or location information
- Release bracket, hydrostatic release, activation switch, or lanyard defects can prevent proper deployment or activation when required
Service: Check mounting, accessibility, identification and registration data, battery and release-device expiry status where applicable, housing and antenna condition, seals, lanyard, and the manufacturer's permitted self-test. Do not make live distress transmissions during routine checks.
Spare Parts: Keep approved mounting or release hardware, seals and lanyard items where replaceable, and the manufacturer-specified battery or service kit through an authorized service arrangement. Exact parts and replacement intervals must follow the manufacturer documentation.
Use Cases: Used on merchant ships, passenger ships, offshore vessels, fishing vessels, workboats, survival craft, and personnel where the applicable distress or man-overboard function is required.
Furuno
5
SART SSR-4
unverified
SOLAS Approved
ja
Common Failures & Inspection Points
- Battery depletion or expiry caused by age or storage conditions, noticed from the service marking or failed self-test
- Antenna or casing damage caused by impact, weather or poor stowage, noticed visually or through failed self-test
- Activation mechanism failure caused by corrosion or mechanical damage, noticed during approved testing
- Incorrect registration, identity or pairing caused by administrative/configuration error, noticed when equipment data do not match vessel records
- Water ingress caused by damaged seals, noticed as corrosion, fogging or failed test
Service: Check battery/service expiry, approved self-test, casing, antenna, activation arrangement and identification/registration. Verify mounting, lanyard, pole or hydrostatic-release arrangement where applicable and ensure deployment is unobstructed. Do not generate a live distress transmission during routine inspection unless an authorized test procedure specifically requires it.
Spare Parts: Internal repair is normally an authorized-service task. Carry only manufacturer-approved external mounting, lanyard, bracket, pole or hydrostatic-release parts where shipboard replacement is permitted, and schedule battery/service replacement before expiry.
Use Cases: Used as emergency locating equipment on seagoing vessels and survival craft to alert or guide rescuers after abandonment, man overboard or personal distress.
Furuno SSR-4 Mk2
unverified
SOLAS Approved
ja
Common Failures & Inspection Points
- Battery depletion or expiry caused by age, self-discharge or poor storage, resulting in failed self-test or reduced emergency endurance
- Antenna or housing damage caused by impact, corrosion or water ingress, resulting in poor transmission or failed self-test
- Activation-switch or release-mechanism failure caused by corrosion, contamination or mechanical damage, resulting in inability to activate or release as intended
- Programming or identity error caused by incorrect replacement or configuration, resulting in wrong identification being transmitted or recorded
- Self-test or internal electronic failure caused by component faults, resulting in warning indication or inability to complete the approved test
Service: Inspect the housing, antenna, mounting bracket, release mechanism and markings for damage or deterioration. Check battery and hydrostatic-release dates where those items are part of the approved unit and replace them only with approved components. Perform self-tests strictly according to the manufacturer instructions and avoid unnecessary live distress transmissions. Verify programmed identity and registration information after replacement or servicing. Keep the unit accessible and correctly secured in its approved location. Refer to manufacturer and regulatory documentation for exact servicing, shore-maintenance and test requirements.
Spare Parts: Emergency beacons and transponders generally rely on approved replacement batteries, release units, brackets or straps rather than informal onboard electronic repair. Carry only manufacturer-approved accessories and replacement components allowed by the certification. Maintain any required spare units according to the vessel's statutory safety-equipment inventory.
Use Cases: Distress alerting, survivor location and search-and-rescue support on SOLAS vessels and other craft carrying the relevant approved emergency beacon or transponder.
Furuno SART 9GHz MED-C
unverified
Certification
MED
Frequency ghz
9
Common Failures & Inspection Points
- Battery depletion or expiry caused by age, self-discharge or poor storage, resulting in failed self-test or reduced emergency endurance
- Antenna or housing damage caused by impact, corrosion or water ingress, resulting in poor transmission or failed self-test
- Activation-switch, release or mounting failure caused by corrosion, contamination or mechanical damage, resulting in inability to activate or release the unit as intended
- Programming or identity error caused by incorrect replacement or configuration, resulting in incorrect identification being transmitted or recorded
- Internal electronic or self-test failure caused by component faults, resulting in warning indications or inability to complete the approved test
Service: Inspect the housing, antenna, mounting, release mechanism and markings for damage or deterioration. Check battery and hydrostatic-release dates where those items form part of the approved unit and replace them only with approved components. Perform self-tests strictly according to the manufacturer instructions and avoid unintended distress transmissions. Verify programmed identity and registration information after replacement or servicing. Keep the unit accessible and correctly secured in its approved location. Refer to manufacturer and regulatory documentation for exact servicing, shore-maintenance and test requirements.
Spare Parts: Emergency beacons and transponders normally rely on approved replacement batteries, release units, brackets, straps or complete replacement units rather than informal onboard electronic repair. Carry only manufacturer-approved accessories and replacement components permitted by the certification. Maintain any statutory spare units according to the vessel's safety-equipment inventory.
Use Cases: Distress alerting, survivor location and search-and-rescue support on SOLAS vessels, offshore units and other craft carrying the relevant approved emergency beacon or transponder.
Furuno SART 9GHz USCG-C
unverified
Certification
USCG
Frequency ghz
9
Common Failures & Inspection Points
- Antenna, feeder or casing damage reduces communication or locating performance and can cause self-test faults
- Battery, emergency-power or power-supply deterioration causes resets, low-voltage alarms or failure to operate
- Water ingress or corrosion causes intermittent operation, damaged connectors or internal faults
- Configuration, registration or identity errors cause incorrect vessel or beacon information
- Internal transceiver, display or control faults cause failed self-tests, missing communications or unavailable emergency functions
Service: Inspect antennas, casing, mounting, power supplies, emergency batteries, controls and programmed identity data as applicable. Perform only approved self-tests and permitted radio tests. Verify accessibility, release arrangements and emergency-power availability where required. Refer to manufacturer and regulatory documentation for the exact figure for test and replacement criteria.
Spare Parts: Carry fuses, handsets or microphones where applicable, approved batteries or chargers, antenna connectors, mounting or release parts and supported control modules.
Use Cases: Distress, safety, ship-to-ship, ship-to-shore and search-and-rescue service.
Furuno SART 9GHz IMO-C
unverified
Certification
IMO
Frequency ghz
9
Common Failures & Inspection Points
- Battery depletion or expiry caused by age, self-discharge or poor storage, resulting in failed self-test or reduced emergency endurance
- Antenna or housing damage caused by impact, corrosion or water ingress, resulting in poor transmission or failed self-test
- Activation-switch, release or mounting failure caused by corrosion, contamination or mechanical damage, resulting in inability to activate or release the unit as intended
- Programming or identity error caused by incorrect replacement or configuration, resulting in incorrect identification being transmitted or recorded
- Internal electronic or self-test failure caused by component faults, resulting in warning indications or inability to complete the approved test
Service: Inspect the housing, antenna, mounting, release mechanism and markings for damage or deterioration. Check battery and hydrostatic-release dates where those items form part of the approved unit and replace them only with approved components. Perform self-tests strictly according to the manufacturer instructions and avoid unintended distress transmissions. Verify programmed identity and registration information after replacement or servicing. Keep the unit accessible and correctly secured in its approved location. Refer to manufacturer and regulatory documentation for exact servicing, shore-maintenance and test requirements.
Spare Parts: Emergency beacons and transponders normally rely on approved replacement batteries, release units, brackets, straps or complete replacement units rather than informal onboard electronic repair. Carry only manufacturer-approved accessories and replacement components permitted by the certification. Maintain any statutory spare units according to the vessel's safety-equipment inventory.
Use Cases: Distress alerting, survivor location and search-and-rescue support on SOLAS vessels, offshore units and other craft carrying the relevant approved emergency beacon or transponder.
Sailor / Cobham
5
SAILOR 6222 SART
unverified
SOLAS Approved
ja
Common Failures & Inspection Points
- Expired or degraded battery capacity caused by age or poor storage can produce failed self-tests or reduced emergency operating capability
- Antenna damage, corrosion, or poor deployment condition can reduce transmission or homing performance
- Water ingress or damaged housing seals can cause corrosion, intermittent operation, or failed self-test
- Incorrect registration, programming, or position-data interface can result in missing or incorrect identification or location information
- Release bracket, hydrostatic release, activation switch, or lanyard defects can prevent proper deployment or activation when required
Service: Check mounting, accessibility, identification and registration data, battery and release-device expiry status where applicable, housing and antenna condition, seals, lanyard, and the manufacturer's permitted self-test. Do not make live distress transmissions during routine checks.
Spare Parts: Keep approved mounting or release hardware, seals and lanyard items where replaceable, and the manufacturer-specified battery or service kit through an authorized service arrangement. Exact parts and replacement intervals must follow the manufacturer documentation.
Use Cases: Used on merchant ships, passenger ships, offshore vessels, fishing vessels, workboats, survival craft, and personnel where the applicable distress or man-overboard function is required.
Sailor 6222 SART-X
unverified
SOLAS Approved
ja
Common Failures & Inspection Points
- Expired or degraded battery capacity caused by age or poor storage can produce failed self-tests or reduced emergency operating capability
- Antenna damage, corrosion, or poor deployment condition can reduce transmission or homing performance
- Water ingress or damaged housing seals can cause corrosion, intermittent operation, or failed self-test
- Incorrect registration, programming, or position-data interface can result in missing or incorrect identification or location information
- Release bracket, hydrostatic release, activation switch, or lanyard defects can prevent proper deployment or activation when required
Service: Check mounting, accessibility, identification and registration data, battery and release-device expiry status where applicable, housing and antenna condition, seals, lanyard, and the manufacturer's permitted self-test. Do not make live distress transmissions during routine checks.
Spare Parts: Keep approved mounting or release hardware, seals and lanyard items where replaceable, and the manufacturer-specified battery or service kit through an authorized service arrangement. Exact parts and replacement intervals must follow the manufacturer documentation.
Use Cases: Used on merchant ships, passenger ships, offshore vessels, fishing vessels, workboats, survival craft, and personnel where the applicable distress or man-overboard function is required.
Sailor SART 9GHz MED-C
unverified
Certification
MED
Frequency ghz
9
Common Failures & Inspection Points
- Antenna, feeder or casing damage reduces communication or locating performance and may cause self-test faults
- Battery, emergency-power or power-supply deterioration causes resets, low-voltage alarms or failure to operate
- Water ingress or corrosion causes intermittent operation, damaged connectors or internal faults
- Configuration, registration or identity errors cause incorrect vessel or beacon information
- Internal transceiver, display or control faults cause failed self-tests, missing communications or unavailable emergency functions
Service: Inspect antennas, casing, mounting, power supplies, emergency batteries, controls and programmed identity data as applicable. Perform only approved self-tests and permitted radio tests. Verify accessibility, release arrangements and emergency-power availability where required. Refer to manufacturer and regulatory documentation for the exact figure for test and replacement criteria.
Spare Parts: Carry fuses, handsets or microphones where applicable, approved batteries or chargers, antenna connectors, mounting or release parts and supported control modules.
Use Cases: Distress, safety, ship-to-ship, ship-to-shore and search-and-rescue service.
Sailor SART 9GHz USCG-C
unverified
Certification
USCG
Frequency ghz
9
Common Failures & Inspection Points
- Expired or degraded battery capacity from age or poor storage causes failed self-tests or reduced emergency operating capability
- Antenna damage, corrosion, or poor deployment condition reduces transmission or homing performance
- Water ingress or damaged housing seals causes corrosion, intermittent operation, or failed self-test
- Incorrect registration, programming, or position-data interface can result in missing or incorrect identification or location information
- Release bracket, hydrostatic release, activation switch, or lanyard defects can prevent proper deployment or activation
Service: Check mounting, accessibility, identification and registration data, battery and release-device expiry status where applicable, housing and antenna condition, seals, lanyard, and the manufacturer-permitted self-test. Do not make live distress transmissions during routine checks.
Spare Parts: Keep approved mounting or release hardware, seals and lanyard items where replaceable, and arrange manufacturer-specified battery or service kits through an authorized service provider.
Use Cases: Used on merchant ships, passenger ships, offshore vessels, fishing vessels, workboats, survival craft, and personnel where the applicable distress-locating function is required.
Sailor SART 9GHz IMO-C
unverified
Certification
IMO
Frequency ghz
9
Common Failures & Inspection Points
- Antenna, feeder or casing damage reduces communication or locating performance and may cause self-test faults
- Battery, emergency-power or power-supply deterioration causes resets, low-voltage alarms or failure to operate
- Water ingress or corrosion causes intermittent operation, damaged connectors or internal faults
- Configuration, registration or identity errors cause incorrect vessel or beacon information
- Internal transceiver, display or control faults cause failed self-tests, missing communications or unavailable emergency functions
Service: Inspect antennas, casing, mounting, power supplies, emergency batteries, controls and programmed identity data as applicable. Perform only approved self-tests and permitted radio tests. Verify accessibility, release arrangements and emergency-power availability where required. Refer to manufacturer and regulatory documentation for the exact figure for test and replacement criteria.
Spare Parts: Carry fuses, handsets or microphones where applicable, approved batteries or chargers, antenna connectors, mounting or release parts and supported control modules.
Use Cases: Distress, safety, ship-to-ship, ship-to-shore and search-and-rescue service.
SRT Marine Technology
2
HR-1A SART
unverified
Common Failures & Inspection Points
- Expired or degraded battery capacity caused by age or poor storage can produce failed self-tests or reduced emergency operating capability
- Antenna damage, corrosion, or poor deployment condition can reduce transmission or homing performance
- Water ingress or damaged housing seals can cause corrosion, intermittent operation, or failed self-test
- Incorrect registration, programming, or position-data interface can result in missing or incorrect identification or location information
- Release bracket, hydrostatic release, activation switch, or lanyard defects can prevent proper deployment or activation when required
Service: Check mounting, accessibility, identification and registration data, battery and release-device expiry status where applicable, housing and antenna condition, seals, lanyard, and the manufacturer's permitted self-test. Do not make live distress transmissions during routine checks.
Spare Parts: Keep approved mounting or release hardware, seals and lanyard items where replaceable, and the manufacturer-specified battery or service kit through an authorized service arrangement. Exact parts and replacement intervals must follow the manufacturer documentation.
Use Cases: Used on merchant ships, passenger ships, offshore vessels, fishing vessels, workboats, survival craft, and personnel where the applicable distress or man-overboard function is required.
HR-2A SART
unverified
Common Failures & Inspection Points
- Expired or degraded battery capacity caused by age or poor storage can produce failed self-tests or reduced emergency operating capability
- Antenna damage, corrosion, or poor deployment condition can reduce transmission or homing performance
- Water ingress or damaged housing seals can cause corrosion, intermittent operation, or failed self-test
- Incorrect registration, programming, or position-data interface can result in missing or incorrect identification or location information
- Release bracket, hydrostatic release, activation switch, or lanyard defects can prevent proper deployment or activation when required
Service: Check mounting, accessibility, identification and registration data, battery and release-device expiry status where applicable, housing and antenna condition, seals, lanyard, and the manufacturer's permitted self-test. Do not make live distress transmissions during routine checks.
Spare Parts: Keep approved mounting or release hardware, seals and lanyard items where replaceable, and the manufacturer-specified battery or service kit through an authorized service arrangement. Exact parts and replacement intervals must follow the manufacturer documentation.
Use Cases: Used on merchant ships, passenger ships, offshore vessels, fishing vessels, workboats, survival craft, and personnel where the applicable distress or man-overboard function is required.
Ocean Signal
1
rescueME EDF1
unverified
Gps integrated
ja
Common Failures & Inspection Points
- Battery deterioration prevents reliable emergency operation and is identified during inspection or self-test
- Antenna or casing damage reduces transmitted signal quality and can cause self-test failure
- Water ingress or corroded contacts cause intermittent or failed operation
- Damaged mounting or lanyard arrangements delay deployment or make the unit difficult to secure
- Incorrect test procedure or configuration causes false confidence or unnecessary radio transmission
Service: Inspect casing, antenna, controls, mounting, lanyard and labels. Use only the permitted self-test and verify battery validity and identification data. Confirm crew access and deployment arrangements. Detailed radio tests require approved manufacturer and GMDSS procedures.
Spare Parts: Keep approved mounting and lanyard components available and arrange certified battery replacement when required; damaged units are normally replaced or serviced by an authorized provider.
Use Cases: SOLAS/GMDSS survival craft, rescue boats and emergency equipment inventories.