Actisense DST-2-C-150 User manual

Active DST Module:
Digital signal processing for
Depth, Speed and Temperature
transducers
DST-2-C
User Manual
Issue 1.51
 Breathes new digital life into old and new analogue transducers
 Connects to depth sounder transducers to produce NMEA 0183
depth sentences DBT and DPT
 Connects to log hall-effect sensors to produce NMEA 0183 speed
and distance travelled sentences VHW and VLW
 Connects to 10kΩ @ 25ºC temperature sensors to produce NMEA
0183 temperature sentences MTW

Company information
Active Research Ltd
Unit 5 Wessex Trade Centre
Ringwood Road
Poole, Dorset
UK, BH12 3PF
Telephone: [phone]
Email: [email protected]
Web: www.actisense.com

Active DST Module - DST-2-C
Page 3© 2016 Active Research Limited
Contents
Important Notices 4
Notices 4
Foreword 4
Introduction 4
General features 5
Depth transducer interface 5
Speed transducer interface 5
Temperature transducer interface 5
Technical features 5
Software updates 5
Connecting devices together 6
The basics 6
The NMEA signals 6
The different NMEA standards 6
Connections 7
Connecting to NMEA devices 8
Depth transducer input/outputs 8
Speed/Log transducer input/outputs 8
Temperature transducer inputs 8
Other Connections 9
NMEA 0183 Output 9
RS232 (PC) compatible Output 9
Connecting to the battery supply 9
Cable grommets 9
Using the ActiPatch upgrade utility 10
Main Window 10
Availability 10
Connecting for re-programming 10
Troubleshooting guide 11
Specications 12
Compatible Transducer List 13
Order part numbers 16
Company Information 16

Page 4© 2016 Active Research Limited
Important Notices
ActisenseandtheActisenselogoareregisteredtrademarks
of Active Research Limited. All rights are reserved. The
contents of this manual may not be transferred or copied
without the expressed written permission of Active
Research Limited. All other trademarks are the property of
their respective owners.
The Actisense Depth, Speed and Temperature module
(DST-2) is intended for use in a marine environment,
primarily for below deck use. If the unit is to be used in a
more severe environment, such use may be considered
misuse under the seller’s warranty.
The Actisense DST-2 has been certied to comply with
the European directive for Electro-Magnetic Compatibility
(EN60945), and is appropriately CE marked. Operation
of the unit should be in conjunction with appropriate
CE approved shielded connectors and cabling used in
accordance with the CE directive EN60945. Any EMC
related issues should be reported to Active Research
immediately to allow the company to rectify or resolve
EMC related problems in accordance with its obligations
under EN60945.
If the unit is connected such that compliance failure occurs
beyond the company’s control, the company shall not be
held responsible for compliance failure until suitable EMC
guidelines for connection are seen to have been taken.
Warning: Depth sounders are not designed to perform as
navigational instruments, nor as devices to avoid grounding
a vessel. Any such use of the Actisense depth output is at
the vessel owner’s own risk, and no responsibility will be
accepted for any resulting damage or personal injury.
Always use caution when operating in shallow areas and
maintain a very slow speed. Be aware that the depth may
change more quickly than your ability to react and avoid
grounding the vessel.
Notices
When using this document, keep the following in mind:
The products described in this manual and the specications
thereof may be changed without prior notice. To obtain up-
to-date information and/or specications, contact Active
Research Limited or visit the Actisense website (www.
actisense.com).
Active Research Limited will not be liable for infringement
of copyright, industrial property right, or other rights of a
third party caused by the use of information or drawings
described in this manual.
Active Research Limited will not be held responsible for
any damage to the user that may result from accidents
or any other reasons during operation of the user’s unit
according to this document.
Foreword
Actisense recognises that instructions are often skipped,
so we have aimed to write this document in an informative,
yet direct manner that will aid the user. We have tried
to cover all the points a typical user may need to know.
Please read all sections before installing and using the
Actisense DST module product and any related software
programs.
Introduction
The Actisense Depth, Speed and Temperature
module (DST-2) was developed to breathe new digital
life into old and new analogue (standard, passive, no
electronics) transducers. By adding an advanced digital
signal processing (DST) module to standard analogue
transducers, they can interface directly with any instrument
with an NMEA 0183 digital data input.
The NMEA 0183 marine standard is a purely digital data
transmission scheme, using binary format ‘1’s and ‘0’s,
to communicate a digital representation of the required
information (depth, speed etc.) to a connected instrument.
A depth sounder transducer is a sensor that must be
interfaced to a depth sounder circuit, capable of both
producing the high voltages to drive the depth transducer,
yet have very sensitive circuitry to receive the faint echoes
of the sound reected from the sea-bed. Such a depth
sounder circuit also needs a powerful software algorithm
to track the sea-bed, and reject false signals that occur
throughout the ocean. For example, an unsophisticated
depth sounder device can lock on to a false sea-bed due
to reections from nearby targets, other depth sounder
devices working on the same frequency, double depths
and even algae formations.
Actisense has designed and improved their current depth
sounder circuitry and software over a development period
spanning 15 years. The algorithms have now been proven
in tens of thousands of products throughout the world that
Actisense has either manufactured itself, or has played
an important design consultancy role in.
To that, Actisense has added speed and temperature
transducer interfaces to the system. This creates a feature
rich product that benets the prospective user.
The resulting module can measure the four quantities of
depth, speed, log (distance) and temperature in one device
and so save the cost of the extra electronic devices. The
NMEA 0183 port requirements of the receiving instrument
are also reduced from three to just one.

Active DST Module - DST-2-C
Page 5© 2016 Active Research Limited
Full information on the complete Actisense product range
can be found on the Actisense website.
General features
Depth transducer interface
Connects to a standard piezoelectric depth transducer
crystal element using a three-wire interface. Generates
the high transmit voltages, and receives the weak echo
returns from the sea-bed. Using an advanced sea-bed
tracking algorithm, the depth value is determined and
output as NMEA 0183 depth sentences DBT and DPT.
Speed transducer interface
Connects to a standard ‘paddle-wheel’ hall-effect speed
transducer using a three-wire interface. Generates the
required power supply, and receives the pulse signal from
the paddle-wheel. Once a speed transducer has been
detected (after sensing a minimum of three log pulses),
statistical analysis is used to determine both speed and
distance values, and output them as NMEA 0183 speed
sentence VHW and distance travelled sentence VLW.
Data output will then continue, regardless of the transducer
output until a power reset occurs.
Temperature transducer interface
Connects to a standard thermistor transducer using a two-
wire interface. Once a temperature transducer has been
detected (after sensing a resistance at power-up), a very
high resolution algorithm is used to determine the
temperature value and output it as NMEA0183 temperature
sentence MTW.
Technical features
High-speed microcontroller capable of 10 million
instructions per second. More than enough power to perform
all the processing required to produce the accurate and
very fast tracking depth output of the system, in addition to
the speed, distance and temperature calculations.
Flash ROM technology that supports automatic
programming for quick and easy updates, 10,000+ erase
cycles and a 10-year Data Retention provides carefree
user conguration.
Sounding transducer circuitry capable of interfacing to
a wide selection of transducers, including Airmar (www.
airmar.com). Refer to the Compatible transducer list
section for further details.
NMEA 0183 full-differential output driver. This can
drive up to 4 fully compliant NMEA 0183 device loads, with
a 10mA (maximum) drive capability. The full-differential
output ensures better quality communications and lower
noise emissions on unshielded twisted pair cabling.
This connection also allows the unit to be updated via the
free ash upgrade software available on the Actisense
website if the DST-2 software requires an update.
Wide battery input voltage range to offer maximum
compatibility, the NMEA 0183 DST-2 can operate from a
battery supply anywhere between 10 and 28 volts.
Low Power Consumption - typically 65mA at 12 volts.
Very tough Polycarbonate case is certied to IP66
(classied as “totally protected against dust and protection
against low pressure jets of water from all directions”).
Being Polycarbonate, it is also incredibly strong, offering
a wide temperature range and superior protection to the
electronics inside. The IP66 rating of the case is only
limited by the sealing gasket strip, which can be enhanced
by applying a suitable non-acid based marine sealant to
the gasket after wiring and testing. This will allow use of
the unit in areas where salt spray could enter, accidental
immersion may occur, or in environments where maximum
long-term reliability is paramount.
Robust Nylon grommets are certied to IP68 (classied
as immersible for long periods without water ingress). Note
that to achieve this level of water integrity all grommets
must be occupied by round-section cables.
Large range of possible cable diameters of between
4.5mm and 10mm, single or multi-pair wire types can be
easily accepted.
Software updates
The DST-2’s built-in rmware is held in “ash” memory,
allowing quick and easy upgrades using a simple Microsoft
Windows (95/98/ME/NT/2000/XP) user interface program
(ActiPatch) running on a connected PC.
It is our policy to provide these updates free on our website,
www.actisense.com, so that your DST module can
become more sophisticated with time, and should there be
any bugs reported in the software, they can be promptly
xed without the unit coming out of commission.
This upgrade can be performed with the unit completely
in-situ, via a PC connected to the NMEA 0183 port with the
Actisense RS485-to-RS232 converter cable.

Page 6© 2016 Active Research Limited
Connecting devices together
The basics
NMEA data is transmitted from an information source such
as GPS, depth sounder, gyro compass etc. These data
sending devices are called “Talkers”.
Equipment receiving this information such as a chart-
plotter, radar or NMEA display is called a “Listener”.
Unfortunately, only one Talker can be connected on to a
single NMEA 0183 system at any one time. Two or more
Talkers are simply not possible because they are not
synchronised to each other, and will attempt to ‘talk’ at
the same time (over each other), resulting in corruption of
the NMEA data, and potentially in disaster if valuable data
such as navigation information is lost or corrupted so that
it is incorrect and/or misleading.
Actisense produces a full range of products to solve all
NMEA interfacing requirements.
Please visit the Actisense website for full details on these
and other Actisense interfacing, Depth sounding and
Sonar products.
The NMEA signals
The NMEA 0183 system v2.0 and later uses a ”differential”
signalling scheme, whereby two wires are used to transmit
the NMEA data. These connections will be labelled as
either NMEA “A” and “B“ or NMEA “+” and “-“ respectively,
depending on the instrument and manufacturer.
When connecting between different manufacturers, there
can be some confusion, but it is simple and easy to
remember: NMEA “A” connects to NMEA “+” and NMEA
“B“ connects to NMEA “-“.
The different NMEA standards
The NMEA 0183 specication has slowly evolved over the
years, so connecting one device to another is not always a
straight forward matter. The earlier versions of NMEA 0183
(before v2.0, as detailed above), used slightly different
connection methods and signal levels: the instruments
had just one “NMEA” data line (‘Tx’ or ‘Out’), and used
the ground as the other line - similar to the way a computer
serial port works. This connection method is referred to as
“single ended” instead of the “differential” method used by
NMEA 0183 v2.0 devices.
The data format is largely the same between both
systems, with v2.0 adding some extra sentence strings,
and removing older (redundant) sentence strings from the
specication. The situation is further complicated, as many
manufacturers still use the old (“single ended”) method of
connection because it is cheaper to implement.
So how can an older type NMEA device be connected to a
newer type device?
Care is needed – it is possible to damage or overload
the output of a newer differential device if it is incorrectly
connected to an older device. This is because the older
devices used ground as the return, whereas the newer
devices actually drive the NMEA “-/B” line between 5v and
0v. Thus, connecting this output to ground will result in high
currents being drawn by the driver instrument, resulting in
potential overheating and damage to the driver circuits.
To connect a new type differential device to an old type
single-ended system, connect the NMEA “+/A” output from
the differential driver to the single-ended NMEA “Rx” or “In”
input of the device. Leave the NMEA “-/B” output oating.
Connect the ground line of the differential output device to
the ground of the single-ended device. This provides the
required data signal return current path.
To connect an old type single-ended device to a new type
differential device, connect the NMEA ”Tx” or “Out” output
from the single-ended driver to the differential NMEA
“+/A” input of the device. Connect the ground line of the
single-ended output device to the NMEA “-/B” input of the
differential device. This provides the data signal return
current path. If the NMEA “-/B” input is left oating, then
data corruption / errors may occur.
Please refer to the Other Connections section for example
of these connection methods.

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1. Depth transducer input/outputs.
The three-wire connection type is exible enough to
interface to most standard piezoelectric crystal depth
transducers.
2. Speed transducer input/output.
The standard three-wire connection type should
easily interface to most standard hall-effect paddle-
wheel speed transducers.
3. Temperature transducer inputs.
The standard two-wire connection type should
easily interface to most standard thermistor type
temperature transducers.
4. An NMEA 0183 data output.
The NMEA0183 output comprises of two connections:
‘+/A’, ‘-/B‘ and conforms in full to the NMEA 0183
standard for differential communications.
5. Battery supply input.
Note:
1. To complete the NMEA 0183 standard all device
interconnection NMEA cables used should meet the
two-conductor, shielded, twisted pair conguration
specication. The shield connection of these wires
should be connected at the instrument end only to
prevent ground loops.
2. Refer to the Specications section for the full details
on input/output specications.
3. If a laptop / PC that is to be used with the DST-2
module does not have an RS-232 serial port available,
the Actisense USB to RS-232 adapter cable
has been tried and tested to provide a compatible
communications port, when used in conjunction with
the Actisense NMEA Opto-isolator adapter cable.
Please visit the Actisense website for full details on
these, and other Actisense products.
The DST module (DST-2) has screw-terminal “Phoenix” type external connections for: -
Connections
Figure 1 – All external connections
NMEA DST MODULE
99999
DST-2-C-200

Page 8© 2016 Active Research Limited
Depth transducer input/outputs
Depth transducers have two or three connections:
A ‘Live’ connection marked ‘DEPTH TDUCER’ on
the PCB, usually a coloured wire on twisted pair cable
(Airmar), or the centre conductor on a coaxial cable.
A ‘Ground’ connection marked ‘DEPTH GROUND’,
often the black core of a twisted pair cable (Airmar).
Coaxial cables have a common shield/ground.
A ‘Shield’ connection which is the shield of a two-wire
cable, or the outer sheath on a coaxial cable.
Two-connection transducers only provide the ‘Live’ and
ground connections. Whilst the DST-2 will work with these
types of depth transducers, the performance obtained may
not be as good as that from a transducer with separate
shield and ground connections (due to a poorer SNR).
Speed/Log transducer input/outputs
Log transducers generally have three connections:
A pulse connection marked ‘LOG PULSE’ on the DST
PCB, supplies the speed pulses relative to speed.
A ground connection marked ‘LOG GROUND’, used
as a return for the pulse signal and power supply.
A power supply connection marked ‘LOG PWR’,
supplies the speed transducer with its power. The
installer must ensure that this power supply is only
connected to the log transducer. Damage may occur
if this supply output is incorrectly connected, as it is
connected to the sensitive internal DST circuitry.
Temperature transducer inputs
Thermistor type transducers have two connections:
A resistance input connection, marked ‘TEMP’ on
the DST-2 PCB.
A second resistance connection, marked ‘TEMP
GND’, is connected to the other side of the thermistor
transducer. The polarity of these two signals is not
important.
Airmar “Triducer” type sensors share a common ground
connection for the speed/log and temperature sensors.
If the required transducer does not have a separate
ground for log and temperature, simply connect the
single ground to the temperature ground marked
“TEMP GND” on the DST-2 PCB.
Temperature transducers suitable for connection to the
DST-2 are of the “thermistor” sensor type with a 10kΩ
impedance at 25º Centigrade, as used in all Airmar
technology transducers.
Note:
1. Wire colours are for guidance only.
2. These connections should be carefully connected to
each transducer according to the instructions of the
transducer manufacturer(s).
Connecting to NMEA devices
Figure 2 – Transducer connections
NMEA DST MODULE
99999
DST-2-C-200
Depth
transducer
+
-
Sh
Temperature
transducer
+
G
Speed
transducer
G
+
Ps

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Other Connections
Figure 3 – NMEA 0183 and Battery connections
NMEA 0183 Output
The NMEA 0183 buffered output is capable of driving up to
4 NMEA 0183 fully compliant listening devices.
NMEA Listener device’s A and B: These devices
conform in full to the NMEA 0183 standard and their
connection ID’s match that of the DST module.
RS232 (PC) compatible Output
The RS232 (PC) output can be used to connect to a
PC’s communication port using a cable conforming to the
following specication:
1. A D-type female (socket) connector for the PC end of
the cable.
2. A minimum of 3 cores are required in a shielded cable.
Higher quality cable will make longer cable lengths
possible. Most typical cables have two twisted pairs
inside. In this case, use one pair for the ‘TX’ line and
one for the ‘RX’ line. Use the spare wire in each pair
as ground, and connect the cable shield to ground
only at the computer end.
3. The ‘TX’ of the DST-2 should be connected to the
‘RX’ of the computer (standard D-type, pin 2) and
the DST-2 ‘RX’ should be connected to the ‘TX’ of
the computer (pin 3). The ‘GROUND’ of the DST-2
should be connected to the PC’s ground (pin 5).
Connecting to the battery supply
The Actisense DST-2 should be wired to the vessel’s
battery supply in the most direct manner possible, to
minimize interference from other electronic devices. The
cable used should be of sufcient gauge to handle the
power requirements of the Actisense DST-2 (refer to the
Specications section).
Cable grommets
The Actisense DST-2 is provided with Nylon sealing
grommets. It is recommended that the box is positioned
with the double grommets pointing downwards, so that
two cables may exit downwards from the case. This will
prevent any moisture from entering the case, as it will drain
downwards, and not into the case.
The module case lid is IP66 certied and has an integral
gasket. If additional protection from water is required,
add a small amount of silicon / sicaex sealant to the lid’s
gasket before the lid is screwed to the base.
Note:
1. Wire colours are for guidance only.
NMEA DST MODULE
99999
DST-2-C-200
Battery/
PSU
+
-
NMEA
Listener B
A
B
NMEA
Listener A
+
-
PC or
Laptop
(RS232)
Rx
Tx
G

Page 10© 2016 Active Research Limited
Using the ActiPatch upgrade utility
The Actisense DST-2 hardware can be easily and quickly updated using the Actisense ActiPatch. The main window
has a simple look, as the ash update process has been completely automated for a trouble-free operation.
Main Window
Figure 4 – ActiPatch upgrade utility main window
Availability
The current Actisense DST-2 software program is a very
mature product that has evolved over the past 8 years,
and as such, we believe it has been tested more rigorously
than any other depth sounder device currently available.
Therefore, the upgrade feature has not yet become active,
but everything is in place should it ever be required.
Please monitor our Actisense website for possible
updates, which will be posted when required. If you would
like to join our ‘Actiscope’ newsletter list, you will be kept
up to date on the DST-2 and all other Actisense products
via a simple e-mail. This part of the document will contain
full details of the PC based system for re-programming
when it becomes available.
Connecting for re-programming
The DST-2 hardware should be connected to the PC
serial communications port via an Actisense bi-directional
RS485-to-RS232 adapter cable, and a battery supply.
Please refer to the NMEA 0183 Output section for full
connection details.
If an Actisense NMEA Data Combiner (Multiplexer) is
being used between the PC and the DST, it will have to be
bypassed to allow bi-directional communication between
the PC and the DST module.

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Page 11© 2016 Active Research Limited
Troubleshooting guide
This guide will concentrate on all relevant troubleshooting issues above simple cable connection faults. Therefore, the
cables between the Actisense DST-2 hardware and any other devices should be checked as a matter of course, before
continuing with this guide.
Problem / Error condition Required user response
No data seen on
NMEA instrument display
Ensure that correct polarity of the NMEA connections have been observed - NMEA
connections are polarity sensitive. No damage should be caused if the polarity is
reversed, but no NMEA data will be seen on the receiving instrument.
“+” and “A” connections should be wired to the DST’s “+/A”.
“-” and “B” connections should be wired to the DST’s “-/B”.
No data seen on
PC display
Ensure that the PC software is selecting the correct PC Comms port number.
As a diagnostic, you can use the standard Windows “HyperTerminal” utility to receive
NMEA data. By selecting the NMEA DST-2 input comms port, the baud rate to that
required (4800 standard), no parity, 1 stop bit, 8 data bits and no ow control, the
received NMEA text data from the DST-2 will be shown on the PC screen.
Table 1 – Troubleshooting guide
Diagnostic LED
The NDC-2 hardware supports a tricolour diagnostic LED that indicates the current operating mode of the hardware, or
if an error has been detected during the self-test initiation process. Table 2 details what each LED colour represents and
if any user interaction is required.
LED Colour Mode / Error condition Required user response
Normal operation modes The sequence below indicates a successful power-up of the
DST-2 and the commencement of data combining.
Red,
No ashing
Start-up mode,
No error
No response required. A normal operation mode that should
last for no more than 1 second. Any longer indicates an error
with the main program.
Red,
No ashing
Flash updating mode,
No error
No response required. LED will stay red for the duration of
the ash update operation (using ActiPatch). Once operation
completes, the DST-2 hardware will be automatically reset.
Amber,
No ashing
Initialise and self-test mode,
No error
No response required. A normal operation mode that follows
after the Start-up mode and should last for approximately 0.25
seconds (and so may not be visible).
Green,
No ashing
Normal and no data mode,
No error
No response required. A normal operation mode that follows
the Initialise and self-test mode. Indicates that no error was
detected during the self-test operation.
Also indicates that no data is currently being transmitted by the
DST-2 hardware.
Green,
Flashing
Normal and data Rx mode,
No error
No response required. A normal operation mode that indicates
that data is currently being transmitted by the DST-2 hardware.
Flash length proportional to amount of data transmitted.
Table 2 – Diagnostic LED colours

Page 12© 2016 Active Research Limited
Specications
Parameter Conditions Min. Max. Unit
Supply
Supply voltage 10 28 V
Supply current, no load (see note 1) Supply voltage = 12v 55 80 mA
Supply voltage = 24v 50 80 mA
Supply current, loaded (see note 1) Supply voltage = 12v 70 130 mA
Supply voltage = 24v 65 130 mA
NMEA
Output voltage between +/- and ground
(see note 2)
Logical ‘1’/stop bit 0.0 0.5 V
4.8 5.2 V
Output current (see note 2) At maximum load, drive voltage
reduces to 2v - 10 mA
Output short circuit current. 50 55 mA
Baud rate - xed (see note 3) 4.8 kbit/sec
Data output rate 1 secs
Depth Sounder
Depth range, using narrow-beam sensor
(like the Airmar P66)
0-10 Knots, ideal conditions 0.3 100 metres
10-40 Knots, ideal conditions 0.3 100 metres
Depth range, using wide-beam sensor (like
the Airmar DT800)
0-10 Knots, ideal conditions 0.3 100 metres
10-40 Knots, ideal conditions 0.3 60 metres
Depth sounding frequency tolerance Around the designed frequency -2 +2 kHz
Speed / Log
Speed measurement Sensor dependant 0.5 50 Knots
Temperature
Temperature measurement, using 10kΩ @
25ºC thermistor (all Airmar models) Sensor dependant -10 +50 ºC
General
Ambient temperature -20 +70 °C
Table 3 – DST-2 specications
All specications are taken with reference to an ambient temperature (TA) of +25°C.
Note:
1. The maximum quoted currents are for very short periods (less than 0.5 milliseconds) only.
2. NMEA output is RS-485 compatible.
3. NMEA 0183 inputs and outputs on the DST-2 are xed to 4800 baud. Custom Baud rates and custom data rates
are available if required for specialised installations.

Active DST Module - DST-2-C
Page 13© 2016 Active Research Limited
Compatible Transducer List
This compatibility list is by no means exhaustive - more
transducer types and manufacturers are added every
month after their compatibility has been proven.
Airmar Technology are always expanding and improving
their transducer range. Any of the 200kHz model types will
work well with the Actisense DST-2-C-200 module, and
likewise, any of the 235kHz model types will work well with
the Actisense DST-2-C-235 module.
Airmar do not currently make any 150kHz transducers.
The 150kHz DST-2 model has been successfully tested
with the EchoPilot Marine and NASA Marine transducers.
Seafarer transducers are essentially the same as the NASA
model, so should be identical in performance, though this
is yet to be proven conclusively.
Actisense would like personal feedback of any company
using the DST-2 module with a different manufacturer and/
or model type of transducer not included in this list. This
feedback will help greatly to expand this list.
Manufacturer Model Ceramic type
For use with Actisense DST-2-C-150
Echopilot Marine Standard in-hull stemmed, with oil bath mounting 150 kHz / 30mm circular element
NASA Marine Standard in-hull stemmed, with oil bath mounting 150 kHz / 30mm circular element
For use with Actisense DST-2-C-200
Airmar (*1) D800 & DT800 through-hull retractable,
with P17, B17 or B122 skin-tting All 200kHz models
Airmar (*1) DST800 through-hull retractable,
with P17 or B17 skin-tting All 200kHz models
Airmar (*1) P52 & P66 transom mount multisensor &
P79 adjustable in-hull depth 200kHz-G
Airmar (*1) P19 & B22 through-hull low prole &
P39 transom mount multisensor 200kHz-U
Airmar (*1)
P23 transom mount depth/temp,
P319 through-hull low prole, &
P32 transom mount multisensor
200kHz-A
Airmar (*1) B39, B45 & B46 through-hull stemmed All 200kHz models
Airmar (*1) B744V & B744VL through-hull multisensor All 200kHz models
Airmar (*1) SS44V, B66V & B66VL multisensor All 200kHz models
Airmar (*1) SS505 & SS555 through-hull stemmed All 200kHz models
Skipper ETN200FS & ETN200F in-hull depth All 200kHz models
VDO Modis 120 200kHz
Table 4 – Transducer compatibility list
Note:
1. Airmar skin-tting types: P - Plastic, B - Bronze, SS - Stainless Steel

Page 14© 2016 Active Research Limited
Compatible transducer list (continued)
For use with Actisense DST-2-C-235
Airmar (*1) D800 & DT800 through-hull retractable,
with P17, B17 or B122 skin-tting All 235kHz models
Airmar (*1) DST800 through-hull retractable,
with P17 or B17 skin-tting All 235kHz models
Airmar (*1) P52 & P66 transom mount multisensor &
P79 adjustable in-hull depth 235kHz-C/D
Airmar (*1) P19 & B22 through-hull low prole &
P39 transom mount multisensor 235kHz-D
Airmar (*1)
P23 transom mount depth/temp,
P319 through-hull low prole, &
P32 transom mount multisensor
235kHz-C
Airmar (*1) B39, B45 & B46 through-hull stemmed All 235kHz models
Airmar (*1) B744V & B744VL through-hull multisensor All 235kHz models
Airmar (*1) SS44V, B66V & B66VL multisensor All 235kHz models
Airmar (*1) SS505 & SS555 through-hull stemmed All 235kHz models
Table 4 (continued) – Transducer compatibility list
Note:
1. Airmar skin-tting types: P - Plastic, B - Bronze, SS - Stainless Steel

Active DST Module - DST-2-C
Page 15© 2016 Active Research Limited
Notes:

Page 16© 2016 Active Research Limited
Order codes:
DST-2-150 Analogue to NMEA 0183 converter for 150kHz transducers (Depth, Speed and
Temperature)
DST-2-170 Analogue to NMEA 0183 converter for 170kHz transducers (Depth, Speed and
Temperature)
DST-2-200 Analogue to NMEA 0183 converter for 200kHz transducers (Depth, Speed and
Temperature)
Active Research Ltd
Unit 5, Wessex Trade Centre
Ringwood Road
Poole, Dorset
UK, BH12 3PF
Telephone: [phone]
Email: [email protected]
Web: www.actisense.com