7801

Sonardyne UK (Head Office) T. +44 (0) 1252 872288 F. +44 (0) 1252 876100 E. sales@sonardyne.com www.sonardyne.com Datasheet Compatt Mk4 EHF (Discontinued) Description The COMPuting and Telemetering Transponder (Compatt) is a microcomputer controlled subsea transponder used for acoustic navigation and positioning. The EHF system is suitable to a wide range of tasks such as underwater measurement, remote control and monitoring. Key Features • Sequential mode operation with twelve individual channel frequencies • Simultaneous receiver card for high speed positional updates fitted as standard • Unique addresses allow up to 768 Compatts to be used in close proximity • Programmable address codes • Conventional Enable and Disable commands for normal transponder operation • Advanced telemetry facility replies to all commands with Compatt address, confirmation of command executed and error-checking • Direct measurement of baselines between Compatts greatly improves array calibration accuracy • Baseline measurement 20 mm • Temperature and depth measurements allow sea-bed sound velocity evaluation • Battery check records remaining battery capacity and time since last charge • Remote status Monitory • Cycle mode permits up to eight preset commands to be executed on receipt of one command • Internal tilt sensor ±45° • Battery count auto-disable at 90% battery pack usage. The Type 7801 Compatt Mk4 is the Extra High Frequency (50-110 kHz) version of Sonardyne’s fourth generation family of transponders built to complement the existing range of Long Baseline products. Its lightweight design permits easy subsea installation and removal by divers and ROVs making it an ideal tool for use in spoolpiece measurement applications. Sonardyne UK (Head Office) T. +44 (0) 1252 872288 F. +44 (0) 1252 876100 E. sales@sonardyne.com www.sonardyne.com Specifications Compatt Mk4 EHF (Discontinued) Feature Depth Rating Operating Frequency Transducer Beamshape Maximum Acoustic Range Relative Positioning Accuracy Transmit Source level (dB re 1µPa @1m) Receive Threshold (dB re 1µPa) Quiescent Life Dimensions (LxDia) Weight in Air Weight in Water Endcap Sensors (Fitted as Standard) Type 7801 2,500 Metres EHF (50-110kHz) Omni-Directional 1Km 0.02–0.15m 190dB 90 - 125dB 1071 days (Alkaline) 1786 days (Lithium) 89 days (Ni-Cad) 1132mm x 178mm 24.1kg 11.2kg Temperature (PRT), Tilt switch (±30-45°), Depth (Strain Gauge Pressure transducer), Conductivity, Power for external sensors Specifications subject to change without notice - 10/2006