Sonardyne UK (Head Office) T. +44 (0) 1252 872288 F. +44 (0) 1252 876100 E. [email protected] www.sonardyne.com Datasheet OBC 12 Transceiver Description The Type 7911 transceiver used by Sonardyne's TZ/OBC positioning system has a remote transducer which is generally deployed in an over the side arrangement, or through hull. On command from a PC equipped with Hydropos software, the transceiver interrogates the seabed transponders and simultaneously take in DGPS information. This raw data is then processed in real time to produce ground station positions to better than 2 metres absolute. Raw data can also be output to the client’s own navigation processor for independent final network adjustment. Key features • Can receive all 9 replies from a group of transponder simultaneously • Can interrogate all 401 VLCT address groups • Shock mounted internal electronics • Remote transducer and submersible transceiver provides maximum flexibility during mobilisation • Plugs directly into Concept systems Gator system, or used with Hydropos • High quality AG&G connectors for power, comms and remote transducer Sonardyne UK (Head Office) T. +44 (0) 1252 872288 F. +44 (0) 1252 876100 E. [email protected] www.sonardyne.com Specifications OBC 12 Transceiver Feature Operating Frequency Transmit Source Level Receive Sensitivity (dB re 1µPa @1m) Range Jitter (1 Std Deviation) Receive Channels Power Communications ‘Connections Hardware Trigger (Sync) Mechanical Construction Dimensions (LxDia) Weight in Air Weight in Water Type 7911 Transceiver HF (35-55 kHz) >188-190dB <92-98 dB ~25us Typical 12 Parallel + 18 Virtual 12-24V DC (Max 500mA) RS232 @ 38400 Baud 8-Way AGP (Power and Communications) / 4-Way AGP (Remote Transducer) +5V DC (Upto Isolated) Anodised Aluminum Alloy and Plastics 612mm (24.1”) x 178mm (7.0”) 11.5kg 7.5kg Feature Operating Frequency Depth Rating Cable Length Mechanical Construction Dimensions (LxDia) Weight in Air Weight in Water Type 7912 Remote Transducer HF (35-55 kHz) 500 Metres 6 Metres Standard (Extendible to 10 Metres) Plastics, Stainless Steel Connectors and Guard 165mm (6.5") x 178mm (7.0") 1.5kg 0.9kg Specifications subject to change without notice - 10/2006