7885

Sonardyne UK (Head Office) T. +44 (0) 1252 872288 F. +44 (0) 1252 876100 E. sales@sonardyne.com www.sonardyne.com Datasheet SIPS 2 XSRS Description A key component in Sonardyne’s SIPS System, XSRSs (Cross Streamer Ranging System) are intelligent acoustic devices used to measure one way slant range distances underwater. Each receiver is capable of receiving 1 of 60 unique digital signals. The use of digital acoustic signals and digital processing techniques enable the XSRS to transmit and receive signals in the same event. In addition, they are able to transmit and receive SIPS 1 style tone burst for cross wake ranges. Key Features • Choice of Alkaline or Lithium battery packs • Compatible with HGPS transceiver • Capable of receiving 16 ranges per cycle • Designed to transmit to an unlimited no of units • Flash upgradeable firmware • Sealed electronics compartment The units are battery powered and are mounted on the streamer sections using industry standard collars. They can also be mounted on tail buoys. The XSRS units communicate with the XSRS controllers by means of the inductive coils and communication circuit with in the streamers. The Type 7885 XSRS units are powered by individual standard Csize alkaline or lithium cells. The XSRS units have been designed to be very energy efficient, with over 80% of the available battery power being transmitted into the water. The design of the XSRS is based around a proprietary application specific integrated circuit (ASIC). The ASIC enables the decoding of the digital acoustic signal using digital signal processing (DSP) techniques. The unit has four receiver channels and one transmit channel. XSRSs are also available with a direct reading sound speed sensor (Type 8018 ASV XSRS). This ‘time of Flight’ sensor provides superior accuracy and ease of use compared to the more traditional CTD methods, particularly in areas affected by fresh water and salt water mixing. Sonardyne UK (Head Office) T. +44 (0) 1252 872288 F. +44 (0) 1252 876100 E. sales@sonardyne.com www.sonardyne.com Specifications SIPS 2 XSRS Feature Alkaline Lithium Operating Frequency EHF (55-110kHz) EHF (55-110kHz) Transmit Source Level (Controllable) Max. 190dB re 1µPa @1m Max. 190dB re 1µPa @1m Receive Sensivity (Controllable) 73dB re 1µPa @1m 73dB re 1µPa @1m Acoustic Range Resolution 5mm@ 1500 ms Vp 5mm@ 1500 ms Vp System Sync Resolution 75mm @ 1500 ms Vp 75mm @ 1500 ms Vp Immunity to Multipath System can resolve bottom bounce/surface bounce greater than 0.3m Number of Digital Acoustic Signals 60 60 Number of Tone Acoustic Signals 6 6 Number of Received Channels 4 4 Battery Life (Typical) 5-6 Weeks 15-18 Weeks Weight in Air 7.3kg Weight in Water 3.0kg Each different code represents one signal (Equivalent to a frequency group) Note: Transceivers can transmit and receive in same event allowing for multiple observations to be collected faster. Specifications subject to change without notice - 02/2007