8192-3112

Sonardyne UK (Head Office) T. +44 (0) 1252 872288 F. +44 (0) 1252 876100 E. sales@sonardyne.com www.sonardyne.com Datasheet Wideband Mini Transponder (WMT) Description Sonardyne’s existing Wideband SubMini transponder (WSM) is typically interrogated by a responder trigger down the ROVs’ umbilical or a narrow band tone signal. In some situations, reverberation or multipath of the tone interrogation can cause interference problems. The new WMT is Sonardyne’s first mini-sized transponder, slightly larger than the WSM and providing full two-way Wideband interrogation and reply which completely mitigates interference from other users and to other users. For use on ROVs, the WMT includes responder trigger, an integrated Li-Ion battery pack that is charged from the ROV’s power supply and full RS232communications enabling channel set up, power, gain etc. to be changed from the surface. An On/Off switch helps ensure the battery pack is not discharged when not in use. When an umbilical trigger is not available, then full Wideband mode provides excellent USBL performance in a small, lightweight form. New remote transducers, either omni or directional are available for both the WMT and existing WSM range. These make installation on an ROV easier as the transducer can be installed where there is good line-ofsight. The main body of the transponder, the more expensive part, can then be installed within the ROV frame where it is well protected. Transducers can then be easily replaced if damaged. Key Features • Full two-way Sonardyne Wideband® interrogation and reply – mitigates any interference and multi-path issues • Mini size – lightweight and small • Responder mode • Li-Ion battery pack • Optional remote transducer • Pressure sensor option • Full RS232 control from the surface • External On/Off switch • New, versatile and future-proof design Sonardyne UK (Head Office) T. +44 (0) 1252 872288 F. +44 (0) 1252 876100 E. sales@sonardyne.com www.sonardyne.com Specifications Wideband Mini Transponder (WMT) 510.3 mm [20.09 in] Ø93.1 mm [3.67 in] Over PVC sleeve Ø88.0 mm [3.46 in] Housing M AX 350.0 mm [13.78 in] (Clamping area) 499.0 mm [19.65 in] Ø93.1 mm [3.67 in] Over PVC Sleeve. ] in Ø88.0 mm [3.46 in] Housing. System Features Depth Rating Frequency Band Transducer beam shape Source Level (re 1 µPa @ 1m) Depth Sensor Communications Interface External Supply Voltage External Power Battery Life (Lithium Ion 15V) Mechanical Construction Dimensions Weights (Air / Water) Options Specifications subject to change without notice – 03/2009 Ø .0 98 6 .8 [3 m. m AX M 350.0 mm [13.78 in] (Clamping area) High Power Low Power Sleep Wideband Listening Battery Charging Peak (during transmission) Listening Continuous 5 sec interrogation Type 8190-3111 Type 8192-3112 3,000 Metres 3,000 Metres MF (19-36kHz) MF (19-36kHz) Omni-Directional ± 130º Directional ± 40º 187 dB 193 dB 181 dB 187 dB ± 0.5% full scale ± 0.5% full scale RS232 (9,600 – 115,200 baud) 18-50 Volts DC 18-50 Volts DC