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Overview
Key Features
Incorporates Sonardyne's latest Wideband Technology
4,000 Metre depth rating
Choice of release options; dual contact closure (XRCC) or dual voltage output (XRVO)
Channel selection via serial data port by PC
Transponder or Responder operating modes
Long-life NiMH battery
Compact and rugged design
Windows based software for test and setup
External On/Off switch for ease of use and storage
Datasheet
Wideband Sub-Mini External Release

The Type 8070 Dual Release Wideband Sub-Mini (WSM) is a 4,000 metre rated transponder/ responder designed for positioning seabed equipment packages, ROVs, towfish and other subsea targets.

This versatile and compact unit features a high-power directional transducer and incorporates Sonardyne Wideband® Technology which offers superior ranging accuracy, operation in a multi-user, multi-vessel environment and fast USBL position updates.

In addition to supporting new Sonardyne Wideband® signals, all WSMs also support traditional Sonardyne tone and HPR 300 and HiPAP® channels. A link allows the WSM to be configured for use with all of the popular acoustic navigation systems.

The Type 8070 External Release WSM differs from standard WSMs in that it has the ability to activate an external release mechanism in order to recover the WSM and any equipment package that it maybe attached to, back up to the surface.

Two external release options are available; a dual contact closure actuation where the power for the release mechanism is provided externally to the WSM (Version 04) or a dual voltage output where the battery voltage of the WSM is used to drive the release directly (Version 08). This version is compatible with Sonardyne's Type 8083-000-01 release mechanism. The type of release function required must be specified at the time of ordering. The depth sensor fitted to standard WSMs is not available on the 04 or 08 version units.

WSMs are also available in 1,000 metre and 4,000 metre versions without an external release capability.

 
Specifications
FeatureType 8070-000-04Type 8070-000-08
Depth Rating 4,000 metres 4,000 metres
Operating Frequency MF (19-36kHz) MF (19-36kHz)
External Release Type (XR) Dual Contact Closure (CC)
Rated at 0.3A 125V AC, 1A 30V DC Max 125V AC, 60V DC
Closure period 29 seconds
Dual Voltage Output (VO)
Nominally 18V, 300mA for 29 seconds
Motor stall sensing at 600mA reverses O/P for 2 seconds
Operating Channels All Sonardyne Wideband/Tone
HPR 300 & 400 Channels
All Sonardyne Wideband/Tone
HPR 300 & 400 Channels
Transducer Beamshape Directional Directional
Transmit Source Level (dB re 1µPa @ 1m) (External Power)
(Battery – High Power)
(Battery – Low Power)
202dB
199dB
196dB
202dB
199dB
196dB
Receive Sensivity (dB re 1µPa) High Gain
Low Gain
Power Supply Long-Life Ni MH battery or ext.
24V via ROV's umbilical
Long-Life Ni MH battery or ext.
24V via ROV's umbilical
Number of Replies (Responder*) Unlimited with External Power Unlimited with External Power
Depth Sensor Not Available Not Available
Maximum Update Period 750ms 750ms
Quiescent Life 60 Days 60 Days
Mating Connections (Bulkhead connector) Subconn MCIL8M Subconn MCIL8M
Mechanical Construction Aluminium Alloy, Anodised Aluminium Alloy, Anodised
Dimensions (LxDia) 408mm (16.1”) x
95mm (3.7”)
408mm (16.1”) x
95mm (3.7”)
Weight in Air 5.0kg 5.0kg
Weight in Water 2.6kg 2.6kg
Battery Charger 7972-000-03 7972-000-03
 
Support
Instrument Firmware
Wideband Sub-Mini (all types) V2.07

 
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