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Overview
Key Features
'One pass' Cable positioning saves vessel time
Programmable to one of 410 addresses and 16 reply channels, providing unique 6560 identities
Compatible with Sonardyne's MF frequency USBL systems
Alkaline battery packs give at least 1 year listening life
Small Seismic Transponder
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The Type 8035 Small Seismic Transponder (SST) has been specifically designed for Ocean Bottom Seismic cable positioning operations, where high-performance, small-size, low-cost and rugged design are important operational factors.

Available in 1,000 and 2,000 metre depth ratings, the SST is deigned for use with Sonardyne's Ultra-Short Baseline (USBL) acoustic positioning systems Ranger and Ranger-Pro.

As these systems measure both range and bearing to the SST transponder, only one overhead pass of the cable is required to position the transponder. This is instead of the two passes currently required for range-only transponder systems.

The use of USBLs and SSTs in this way results in considerable savings in vessel time, introducing new standards of efficiency for seismic operations.

Where the SST is to be left attached to a cable and then reeled onto a drum, the option of a stainless steel outer body is available. This provides increased durability and crush resistance for the unit in harsh and dangerous environments.

Another feature of the transponder is its programming flexibility. Any one of 410 addresses and 16 reply channels, providing 6560 identities, can be programmed using a Type 8037 MF Command Unit. This lends itself to the marking of seismic cables and other applications demanding dense coverage.

The SST can also be used as a permanent long-life marker transponder, or a small, low-cost USBL tracking beacon for small ROVs.

 
Specifications
FeatureType 8035-000-05Type 8035-000-06Type 8035-000-07Type 8035-000-08
Depth Rating 1,000 metres 1,000 metres 2,000 metres 2,000 metres
Operating Range Frequency MF (21-32kHz) MF (21-32kHz) MF (21-32kHz) MF (21-32kHz)
Transmit Source Level 185-190dB re 1µPa @1m 185-190dB re 1µPa @1m 185-190dB re 1µPa @1m 185-190dB re 1µPa @1m
Receive Sensitivity 100-105dB re 1µPa 100-105dB re 1µPa 100-105dB re 1µPa 100-105dB re 1µPa
Interrogation Address Programmable 1 to 410 Programmable 1 to 410 Programmable 1 to 410 Programmable 1 to 410
Reply Channels Programmable 1 to 16 Programmable 1 to 16 Programmable 1 to 16 Programmable 1 to 16
Switch On Continuously Listening Continuously Listening Continuously Listening Continuously Listening
Battery Type Alkaline Alkaline Alkaline Alkaline
Quiescent Life 12 months 12 months 12 months 12 months
Mechanical Construction
Outer housing
Inner Housing

Polypropylene
Aluminium Alloy

Stainless Steel
Duplex Stainless Steel

Polypropylene
Duplex Stainless Steel

Stainless Steel
Duplex Stainless steel
Dimensions (LxDia) 432.9mm (17.04”) x 63mm (2.48”)  332mm (13.07”) x 60.3mm (2.37”)  432.9mm (17.04”) x 63mm (2.48”)  332mm (13.07”) x 60.3mm (2.37”) 
Weight in Air 1.23kg 3.15kg 1.45kg 3.95kg
Weight in Water 0.24kg 2.30kg 0.32kg 2.80kg
 
Manuals
Manual Type Definitions
AM = Application Manual
CL= Command Language Manual
IM = Installation Manual
MM = Maintenance Manual
OM = Operation Manual
SM = System Manual
TM = Training Manual
UM = User Manual

To request a manual simply tick the box next to the manual you require and then press the Request Form button. You will then be able to request addition manuals for other products and your request will be emailed to our Customer Support Team who will reply to your enquiry. Alternatively please contact your local office who will be more than happy to help.

Type 8035 - Small Seismic Transponder

 
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