SAILOR GMDSS
Thrane & Thrane A/S (Cobham SATCOM)
Refurbished
SAILOR 7224 VHF DSC Control Unit – TT-7224A / 407224A | SAILOR 7222 GMDSS Radio Spare Parts & TroubleshootingProduct Information
Identification note: The original nameplate identifies Model TT-7224A, P/N 407224A and SAILOR 7224 VHF DSC CU. The manufacturing location shown on this particular unit is China; this is distinct from the manufacturer's Danish company location. Product IntroductionThe SAILOR 7224 VHF DSC Control Unit is the bridge-mounted operating and display interface for the SAILOR 7222 VHF DSC Class A marine radio system. The SAILOR product family is associated with Thrane & Thrane A/S and Cobham SATCOM, a supplier of maritime communication equipment. Designed for demanding marine environments, the SAILOR 7224 combines an intuitive touchscreen interface with physical operating controls and a protected distress-alert button. It works together with the SAILOR 7226 VHF Transceiver Unit, which performs the radio-frequency transmitting and receiving functions. The system supports maritime VHF voice communication and Class A Digital Selective Calling (DSC), making it relevant to vessels requiring approved GMDSS radio equipment. For shipowners, radio technicians, electrical officers and purchasing managers, identifying the exact control unit model and part number is important when replacing damaged or malfunctioning components. SM MARINE SERVICE™ supports international enquiries for the SAILOR 7224 control unit, compatible transceiver equipment and related marine communication spare parts. Website: www.smmarineservice.com SAILOR 7224 Front Control PanelWhat Is the SAILOR 7224 VHF DSC Control Unit?The SAILOR 7224 is the human-machine interface of the SAILOR 7222 Class A VHF radio system. The control unit allows the operator to select VHF channels, access DSC communication functions, review messages and status information, and manage supported radio settings. It includes a large touchscreen, dedicated controls and an internal speaker. The separate SAILOR 7226 transceiver provides the radio communication hardware and connects to the control unit through a LAN-based interface. This modular design allows individual equipment assemblies to be identified for servicing or replacement, subject to hardware and software compatibility. The SAILOR 7222 system is intended for marine communication installations requiring Class A DSC capabilities and the applicable GMDSS approval. «Communication and Radionavigation SPB» Company
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Main Features5.5-inch Capacitive TouchscreenThe SAILOR 7224 features a 5.5-inch TFT colour display with capacitive multi-touch operation. The touchscreen provides access to the radio's operating menus, communication settings and DSC functions. Dedicated Distress Alert ControlA protected distress button is fitted to the front panel. It is intended for genuine distress-alert functions when the radio system is correctly installed and commissioned. Distress controls must never be activated casually or for unauthorized testing. Physical Operating KnobsThe control unit includes physical controls for power, volume and squelch functions, together with a channel-selection and dimming control. These provide alternative operation alongside the touchscreen. SAILOR Replay FunctionThe SAILOR Replay feature allows operators to review recently received voice communications. The SAILOR 7222 product information specifies replay capability of up to 480 seconds, depending on the system configuration. DSC and Channel FunctionsThe photographed screen shows functions including CALL, WATCH, ALERT, DSC TEST, DSC, SETTINGS, REPLAY and a Channel 16 shortcut. It also includes 25 W / 1 W transmission-power selection. Day and Night OperationThe colour interface supports different display themes for day and night visibility. Bridge Alert ManagementThe SAILOR 7222 platform supports relevant Bridge Alert Management and NMEA communication functions, subject to its installed interfaces and configuration. Main Technical Specifications
The figures above are published specifications for the SAILOR 7224 control unit. They are not individual test measurements from the photographed equipment. americansatellite.us
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Rear Connectors & Equipment IdentificationThe rear panel provides the electrical and communication connections required for integration with compatible SAILOR equipment. The manufacturer's installation documentation identifies LAN connections, USB, CTRL, OPT and other interfaces used for compatible handsets, microphones, navigation data and bridge-system integration. The photographed unit also includes a grounding connection and DC supply wiring. These connections must be installed according to the applicable wiring diagram. Connector appearance alone does not establish the correct pin assignments. Main Components & Associated Part NumbersSAILOR 7224 Control Unit – 407224AThe main control and display unit featured in this article. It provides touchscreen operation, DSC controls, loudspeaker functionality and the operator interface for the SAILOR 7222 system. SAILOR 7226 VHF Transceiver UnitThe SAILOR 7226 is the separate radio transceiver used with the SAILOR 7224. It provides the RF transmitting and receiving functions and interfaces with the control unit through an appropriate Ethernet connection. The 25 W and 1 W output selections visible on the control screen relate to the radio transmission system, not the control unit's electrical power consumption. SAILOR 6201 HandsetThe SAILOR 6201 is a compatible handset used for voice communication. The complete installation may include handset and cradle arrangements. SAILOR 6204 Control Speaker MicrophoneThe SAILOR 6204 is an optional control speaker microphone supported by compatible SAILOR installations. Manufacturer documentation describes configurations supporting up to four connected SAILOR 6204 units. Installation Accessories
These part numbers help buyers identify the appropriate complete unit, accessories and replacement equipment. Individual stock availability must be confirmed. Marine ApplicationsThe SAILOR 7224 is relevant to marine VHF DSC radio installations aboard commercial vessels. Applications include:
It provides local control of the VHF radio and access to supported voice, DSC, distress and safety communication functions. The completed radio system must meet the vessel's applicable communication, installation and survey requirements. Common Problems & Troubleshooting
These are possible equipment faults, not evidence that the photographed unit has any of these defects. Recommended Troubleshooting ProcedureA qualified marine radio technician should record the model number, product identification and observed problem before investigating. The technician should verify the specified DC supply, inspect the approved cable connections, check communication between the 7224 control unit and 7226 transceiver, and examine the available system status and diagnostic information. An apparent controller failure may originate in the transceiver, network cable, external equipment or system configuration. Safety precaution: GMDSS radio equipment forms part of a vessel's safety communications. Maintenance and testing must follow approved procedures. Do not send a live distress alert to test a control or connection. Common Alarms & Fault IndicatorsThe SAILOR 7222 system provides DSC and bridge-alert functions that allow operators to review relevant radio and equipment conditions. The photographed screen shows the DSC TEST function and interface controls, but no specific failure message is visible. Possible areas requiring investigation include loss of transceiver communication, missing navigation position information, supply-related problems and external bridge-interface communication faults. No unverified alarm codes have been assigned to the photographed TT-7224A. Maintenance TipsRoutine maintenance should include inspecting the touchscreen surface, protective distress-button cover, control knobs, enclosure and visible connections. The operator should periodically verify the control unit's display, communication functions and approved DSC test status in accordance with the vessel's maintenance procedures. Technicians should inspect Ethernet and other interface cables for damage, corrosion or loose connections. The system's software version, MMSI and approved configuration should be recorded before significant servicing or replacement. Do not modify MMSI information, safety configuration or distress functionality without authorization. Spare Parts & Replacement AvailabilitySM MARINE SERVICE™ supports international enquiries for the SAILOR 7224 VHF DSC Control Unit TT-7224A, P/N 407224A, together with compatible marine VHF communication equipment. Potential requirements include:
Depending on availability, SM MARINE SERVICE™ can support sourcing enquiries for new, used, refurbished, reconditioned or tested-working equipment. The specific condition, inspection results and availability of the photographed control unit must be confirmed before purchase. Information Required for QuotationBuyers should provide the exact model TT-7224A, part number 407224A, a photograph of the rear identification label, the installed VHF transceiver model, reported faults and delivery destination. When replacing an older SAILOR VHF installation, buyers should also supply the existing mounting details and system configuration. Visit www.smmarineservice.com for marine communication spare-parts and worldwide sourcing enquiries. SAILOR 7224 and SAILOR 6222 Replacement CompatibilityThe SAILOR 7224 control unit was designed with installation dimensions intended to facilitate replacement of earlier SAILOR 6222 control equipment. However, matching panel cut-outs or mounting dimensions does not establish electrical, software or transceiver interchangeability. The SAILOR 7224 is intended to work within the SAILOR 7222 architecture using the appropriate transceiver and interfaces. A 6222-to-7222 upgrade must therefore be treated as a system-level compatibility assessment rather than a guaranteed direct control-unit swap. Before modernization, confirm the required transceiver, power supply, cabling, accessories, configuration and applicable marine approval requirements. Why Ships Use the SAILOR 7222 VHF DSC SystemVHF voice and DSC communication remain important elements of shipboard distress, safety and routine communication. The SAILOR 7222 system provides a modern touchscreen interface combined with dedicated physical controls and modular system components. Its architecture allows compatible equipment to be installed across different bridge arrangements while providing access to key communication functions. Maintaining correctly matched control and transceiver units is important for reliable radio operation. Frequently Asked QuestionsWhat is the SAILOR 7224?It is the VHF DSC control and display unit used in the SAILOR 7222 Class A GMDSS radio system. What is the SAILOR TT-7224A part number?The photographed unit is marked 407224A. Who manufactures the SAILOR 7224?The SAILOR product is associated with Thrane & Thrane A/S, trading as Cobham SATCOM. What is the display size?The SAILOR 7224 has a 5.5-inch capacitive multi-touch TFT display. What is the power requirement?The published control-unit specification identifies a nominal 24 V DC supply with -10% / +30% tolerance. Which transceiver works with SAILOR 7224?The SAILOR 7226 VHF Transceiver Unit is the documented partner in the SAILOR 7222 system. Does the control unit support DSC?Yes. It provides the operating interface for Class A DSC functions within the complete system. Can the SAILOR 7224 replace a SAILOR 6222 control unit?The physical installation was designed to facilitate upgrades, but electrical and complete-system compatibility must be verified. What are common SAILOR 7224 faults?Potential problems include display failure, unresponsive controls, supply faults and loss of communication with the transceiver. Where can I buy SAILOR 7224 spare parts?SM MARINE SERVICE™ accepts enquiries for TT-7224A control units and compatible marine VHF spare parts. Are used or refurbished SAILOR 7224 units available?Availability depends on current sourcing and stock. Buyers should request the actual condition and test status. Can SM MARINE SERVICE™ supply internationally?Worldwide marine equipment sourcing and shipping enquiries are accepted, subject to stock and destination arrangements. Short Product DescriptionThe SAILOR 7224 VHF DSC Control Unit, Model TT-7224A, Part No. 407224A, is a marine communication interface designed for the SAILOR 7222 VHF DSC Class A GMDSS radio system. Manufactured under the SAILOR brand associated with Thrane & Thrane A/S and Cobham SATCOM, the control unit features a 5.5-inch capacitive touchscreen, built-in speaker, dedicated distress button, operating controls, LAN connectivity and DSC functions. It operates with the compatible SAILOR 7226 transceiver. SM MARINE SERVICE™ supports worldwide enquiries for replacement control units, transceivers, handsets, mounting accessories and marine communication spare parts, subject to availability and compatibility confirmation. SM MARINE SERVICE™Marine Automation & Navigation Equipment Supplier Available Equipment Conditions: Specific product condition and availability are subject to confirmation. Stock Locations: Services: Contact Information SM MARINE SERVICE™ Mobile / WhatsApp / Viber: +88 01818 929292 For quotations regarding SAILOR 7224 TT-7224A control units, SAILOR 7222 radio equipment, SAILOR 7226 transceivers, related accessories or other marine communication spare parts, contact SM MARINE SERVICE™ with the relevant model identification and shipping destination. |
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