HPT 3000 – USBL Tracking Transceiver

    Use it with Mini-Ranger 2
    Perfect for shallow water USBL tracking
    Easy to deploy on temporary over-the-side set ups
    Ethernet comms for fast position updates
    Excellent corrosion resistance

    Portable, calibration-free vehicle and diver tracking

    HPT 3000 has an internal MTi-30 Xsens sensor which provides pitch, roll and heading data for search and salvage applications which are time critical requiring turn on and track functionality. Shallow water and pipelay from anchor barges also benefit from the internal sensor being calibration free.

    The HPT 3000 Ultra-Short BaseLine (USBL) is a new smaller, lighter, high performance Ethernet interfaced USBL tracking transceiver, supporting Sonardyne’s Wideband®2 6G® instruments. This smaller HPT offers significant improvements for survey positioning for coastal and near shore operations where high elevation tracking is required in low noise environments.

    The advanced multi-element processing enables transponders to be positioned more precisely, more quickly and more robustly due to improvements in signal processing algorithms. When used as part of a complete Mini-Ranger 2 USBL system, heading and inertial navigation sensor, class leading performance is achieved.

    ‘Discovery Mode’ enables users to automatically detect previously deployed transponders including their configured address and channel, making the system easier to use. The HPT 3000 is a highly capable acoustic USBL tracking transceiver. Its multiple simultaneous channels enable robust tracking of 10 targets.

    Manufactured in Aluminium Bronze, the HPT 3000 is intended to be fitted temporarily or permanently to a vessel’s through-hull or over-the-side pole.
    The full hemispherical coverage optimises performance in shallow water environments boosting transmissions and receive sensitivity in the horizontal axis.

    Being Ethernet based enables the system to function over existing ship network wiring for rapid installation.

    Technical Features


    • MF frequency (19–34 kHz)
    • Sonardyne Wideband 2 digital acoustics for reliable performance in both shallow and deep environments
    • Transceiver optimised for high elevation tracking


    • 310 mm x 234 mm. 0.9 kgs weight in water
    • Full 180 degrees acoustic cover
    • Aluminium Bronze construction


    • Operating range restricted to 995 m with MiniRanger 2 system (4000 m with Extended Range version) Effective data transfer rates between 200 and 9000 bps
    • All Transceivers tested to better than 0.2% of Slant Range 1 Drms / 0.14% 1 Sigma
    • Better than 15 mm range precision


    • What’s in the box: HPT 3000, SIU, deck cables, software, manual
    • Warranty: 1 year return to Sonardyne service centre
    • ITAR Controlled: No
    • UK Export License: Not required for 995 m version. Required for extended range version

    More about this product

    HPT 3000 Specifications

    Feature Type 8212
    Operational Frequency MF (19-34 kHz)
    Transceiver Performance

    Operating Range

    Acoustic Cover
    Range Precision
    Positioning Repeatability External MRU
    Positioning Repeatability Internal Xsens Pitch and Roll.

    Restricted to 995 m with MiniRanger 2 system (4000 m with Extended Range version)
    Full 180 degrees.
    Better than 15 mm
    All Transceivers tested to better than 0.2% of Slant Range 1 Drms / 0.14% 1 Sigma
    All Transceivers tested to Better than 1.3% of Slant Range 1 Drms / 0.9%  1 Sigma
    Transmit Source Level SL = dB re 1 uPa @ 1 m
    Tone Equivalent Energy (TEE)*
    194 dB (3 JA)
    200 dB
    Electrical   48 V dc (±10%),
    Typical 15 W, Max 120 W
    Communication   Ethernet 100 Mbps
    Operating Temperature   -5 to 40°C
    Storage Temperature   -20 to 45°C
    Mechanical Construction   Aluminium Bronze
    Dimensions; Height x Diameter   310 x 234 mm
    Weight in Air/Water Aluminium Bronze 19.4/9.5kg
    Note: The absolute accuracy of the system is dependent upon the quality of external attitude and heading sensors, beacon source level, vessel noise, water depth, mechanical rigidity of the transceiver deployment machine, SV knowledge and proper calibration of the total system using CASIUS.




    Instrument Firmware  
    HPT Firmware V3.08.02.03

    Technical Bulletins

    Title Description

    Storage and operation temperatures

    This technical bulletin has been issued to draw customers’ attention to a potential issue with all variants of HPT or GyroUSBL caused by either inadvertent storage or operation at temperatures exceeding the stated specifications.



    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.

    User Manual - HPT 3000

    • Manuals Request


      Has anyone ever installed an echosounder and a HPT 3000 directly beside each other? Would this work?

      Your echosounder could affect USBL performance so use the Acoustic Signal Analysis and Noise Plot tools available in Ranger to identify potential issues. The Signal Analysis Tool allows you to identify and diagnose ‘False Detections’ caused by the echosounder and to then take steps to minimise this. The Noise Plot Tool allows you to analyse the background noise to which the USBL transceiver is exposed. Take various noise profiles under different operating configurations, for example, with the echosounder on and off. These will give you a good idea of the power and gain settings to use,the maximum range you can expect to achieve and the beacon power settings. If you are in any doubt, please feel free to send through the screenshots and we will look at them.

      Do deployment machines require any kind of maintenance?

      Yes. After commissioning and start-up of the system, the L/USBL transceiver, deployment machine, and gate valve will need a minimum of preventative and corrective maintenance to ensure the correct operation of the machine and consistent acoustic performance from the transceiver.

      The procedures can be carried out without affecting the calibration offsets (CASIUS) of the L/USBL transceiver. We recommend that the maintenance which comprises visual inspections of bracing points and fixings, greasing routines, and also exercising of the moving parts (particularly the gate valve), is carried out on a monthly basis. Full details of these procedures can be obtained from our Customer Support team. From a purely operational point of view, failure to carry out the maintenance can lead to mechanical issues suchas vibration of the pole which can have a significant impact on the performance of your system.

      Carrying out the correct preventative maintenance routines can not only prolong the life of your deployment machine, but also greatly improves the performance of the acoustic system and reduce the risk of operational down time.

      How sparse is a sparse LBL array?

      In theory, LBL requires a minimum of three ranges and knowledge of depth to calculate a unique position. However in the real-world, it is likely that one or more ranges will be slightly in error and so with only three ranges, it is impossible to detect and identify an erroneous range. By adding more ranges, typically five or more, it becomes easier to detect outliers and compute a high integrity position. This is known as redundancy.

      When we include the extra position change information obtained from an LBL system aided with an inertial sensor, such as our SPRINT, we can reduce the number of ranges required as we now have a better understanding of the actual movement of the target and can use this information to identify and reject erroneous ranges. The amount of assistance this gives in detecting bad ranges depends on the geometry of the ranges and the trajectory of the target. So how sparse to make an array therefore depends on your vehicle path, array design and the integrity required for the positioning.

      Does the HPT's main connector need any maintenance?

      Yes. To keep your HPT performing as it should, you should clean, inspect and lubricate the bulkhead connector. This is what the manufacturer recommends:

      AGP Connector mating surfaces should be cleaned to remove contamination and silicone build up then inspected and re-lubricated. This should be performed prior to each mating and before storage to insure correct mating as well as prolonged connector life. Connectors must also be mated and unmated correctly to ensure a proper seal and to prevent connector damage or degradation.

      1. Clean the connector using the manufacturer’s recommended “3M Silicone Spray, ECG RX2200 or Dow Corning DC200” only.
      2. Apply lubricant and carefully and thoroughly clean the connector, locking ring and locking ring threads using a non-abrasive towel (it is not recommended to insert anything into pin or socket cavities).
      3. After cleaning, thoroughly inspect the connector and locking ring and look for:
      – Cuts or abrasion to sealing surfaces (face of connector, overmold and pin cavities).
      – Bent or broken pins and sockets.
      – Deformation of the shoulder (the back of the metal locking ring presses against this shoulder to ensure connector faces mate tightly together).
      – Damaged threads, rust or corrosion on locking rings.
      4. Lubricate the connector surfaces using 3M Silicone Spray, ECG RX2200 or Dow Corning DC200.
      5. Apply a light machine oil or dielectric anti-seize to lubricate only the threaded portion of the stainless steel locking rings.
      6. Mating of locking rings should be done by hand only (do not use a wrench or pliers to tighten locking rings).
      7. Ensure this is no gap between the two face seals before thoroughly hand tightening the locking rings (by hand (the locking rings can be pulled back from the connector to allow a better view).
      8. Do not bend or twist connectors while mating or un-mating as this will damage the connector pins and sockets. Pull or push straight across the connectors. Anchor cable with foot and pull straight up if possible.

      Note: do not use Contact Cleaner, WD40, CRC, DC111 or any other solvents or heavy silicone grease to clean or lubricate AGP connectors. Doing so may cause connector damage, improper mating/sealing and shortened connector life.

      More information can be found in Product Catalogs on the manufacturers website.

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