Marport NBTE V1 User manual
Trawl Explorer
User Guide
Contents | ii
Contents
Legal.................................................................................................4
History...........................................................................................................................................................................4
Copyright......................................................................................................................................................................5
Disclaimer.................................................................................................................................................................... 5
Introduction and Presentation..........................................................6
Introduction................................................................................................................................................................6
Applications.................................................................................................................................................................7
Safety Guidelines......................................................................................................................................................8
Description.................................................................................................................................................................. 9
Firmware..........................................................................................................................................................9
Technical Specifications............................................................................................................................ 9
Main Parts......................................................................................................................................................11
Operational Mode Indicator................................................................................................................... 12
Installation Steps.................................................................................................................................................... 13
Sensor Configuration...................................................................... 14
Installing Mosa2......................................................................................................................................................14
Connecting the Sensor to Mosa2......................................................................................................................15
Sounding Modes......................................................................................................................................................18
Configuring the Uplink, Up and Down Settings....................................................................................... 19
Uplink..............................................................................................................................................................19
Up/Down Soundings..................................................................................................................................19
Target Strength........................................................................................................................................... 21
About Time Variable Gain...................................................................................................................................22
Configuring Measurement Sending Sequence and True Mode.............................................................23
Selecting A1 Board Orientation.........................................................................................................................24
Canceling the Ringing..........................................................................................................................................25
Configuring the Uplink Power..........................................................................................................................28
Testing Measures...................................................................................................................................................28
Exporting Sensor Configuration Settings for Record Keeping.............................................................29
Exporting Sensor Configuration Settings for the Receiver....................................................................30
System Configuration and Display.................................................. 32
Adding the Sensor to the Receiver..................................................................................................................32
Adding the Sensor with a Configuration File................................................................................. 32
Adding the Sensor Manually.................................................................................................................34
Adding the Sensor to the Receiver......................................................................................... 34
Configuring the Sensor Settings..............................................................................................35
Configuring the Sensor Display on Scala/Scala2....................................................................................... 37
Contents | iii
Installation......................................................................................41
Installing a Trawl Explorer on the Trawl.....................................................................................................41
Maintenance and Troubleshooting................................................. 44
Interference Check.................................................................................................................................................44
Spectrum Analyzer Display................................................................................................... 44
Checking Noise Interference................................................................................................. 45
Checking Noise Interference.................................................................................................46
Charging the Sensor.............................................................................................................................................49
Cleaning the Sensor.............................................................................................................................................. 50
Maintenance Checklist..........................................................................................................................................51
Troubleshooting......................................................................................................................................................52
Mosa2 does not open due to error message...................................................................................52
Sensor cannot connect in wireless connection.............................................................................. 52
Sensor does not connect correctly with Mosa2 when using the Configuration
Cable...........................................................................................................................................................53
Data in Scala/Scala2 is wrong.............................................................................................................. 54
Echogram is fixed and blue...................................................................................................................54
Pitch and Roll are wrong........................................................................................................................55
Support Contact......................................................................................................................................................56
Appendix.........................................................................................57
Frequency Plan........................................................................................................................................................57
Index................................................................................................................ 62
Trawl Explorer | V7 | Legal
Legal
History
V1 05/09/17 First release
V2 03/09/18
New topics:
•About Time Variable Gain on page 22
•Canceling the Ringing on page 25
•Frequency Plan on page 57
V3 07/06/18
• New troubleshooting topic: Sensor cannot connect in wireless connection on
page 52
•Interference Check on page 44: more information about Spectrum page.
V4 11/30/18
•Frequency Plan on page 57: drawings have been changed, frequencies
are now allocated between 34 kHz and 36 kHz and frequency ranges of
narrowband and wideband hydrophones are indicated.
V5 07/16/20 Now documents Mosa2 version 02.03, Scala version 01.06.34 and Scala2
version 02.02.
V6 03/08/21
• Now documents Mosa2 version 02.07.
•Connecting the Sensor to Mosa2 on page 15: added guidance on how to
connect sensor to Mosa2 using the Configuration Cable product.
• Added troubleshooting topic: Sensor does not connect correctly with Mosa2
when using the Configuration Cable on page 53
• Added specifications for the mini Trawl Explorer in Technical Specifications
on page 9 and Main Parts on page 11.
•Added details on the Down 1 + Down 2 sounding mode in Configuring the
Uplink, Up and Down Settings on page 19.
• Added contact details for the sales offices in South Africa and Norway in
Support Contact on page 56.
V7 07/05/21
• Now documents Scala2 version 02.04 and Mosa2 version 02.07.
• Replaced term Configuration Plug by Configuration Cable.
•Connecting the Sensor to Mosa2 on page 15: Updated distance between
other electrical devices and the computer: 1 m instead of 50 cm.
| 4
Trawl Explorer | V7 | Legal
Copyright
© 2021 Marport. All Rights reserved.
No part of this document may be reproduced, stored in a retrieval system or transmitted in any
form by any means; electronic, mechanical, photocopying or otherwise, without the express
written permission from Marport. “Marport”, the Marport logo and Software Defined Sonar are
registered trademarks of Marport. All other brands, products and company names mentioned
are the trademark and property of its respective owners only. Marport is a division of Airmar
Technology Corporation.
Disclaimer
Marport endeavors to ensure that all information in this document is correct and fairly stated, but
does not accept liability for any errors or omissions.
The present user guide is applicable for the following versions:
• Scala: 01.06.06-01.06.34 / Scala2: 02.04
• Mosa2: 02.07
Patents apply to products. U.S. Patents 9,772,416; 9,772,417
| 5
Trawl Explorer | V7 | Introduction and Presentation
Introduction and Presentation
Read this section to get a basic knowledge of your Trawl Explorer sensor.
Tip: Click Marport logo at the bottom of pages to come back to the table of contents.
Introduction
Marport’s Trawl Explorer is your eye on the fishing gear. This sounder can be placed on your trawl
headrope or tunnel in order to send useful information to the wheelhouse.
Thanks to the sounder you will see:
• On the echogram, the trawl opening and fish entering the net.
• Also on the echogram, the distance between the footrope and seabed to see if the gear touches
the bottom.
• Depth data
• Temperature data
• Pitch and roll data
• Distance from the sensor to the seabed or footrope
The Trawl Explorer can adapt to different types of fishing methods. For example, you can fully
configure the sounding modes in accordance with your fishing method to have optimum results.
On the latest version of Trawl Explorer, the echogram displays target strength values that helps
you to identify fish.
Note:
These labels tag topics or actions that are specific to Scala and/or Scala2.
Depending on the version you have, you may follow either one of these labels.
| 6
Trawl Explorer | V7 | Introduction and Presentation
Safety Guidelines
Important: To ensure proper and safe use of this equipment, carefully read and follow the
instructions in this manual.
Basic good practices
When using the product, be careful: impacts can cause damage to the electronic components inside.
Never place the product in a hazardous and/or flammable atmosphere.
Product installation and use
Install and use this product in accordance with this user manual. Incorrect use of the product may
cause damage to the components or void the warranty.
Only qualified Marport dealers can do maintenance and repairs on internal components of the
sensors.
Precautions
Warning: In case of water ingress in the product, do not charge it: battery may vent or
rupture, causing product or physical damage.
| 8
Trawl Explorer | V7 | Introduction and Presentation
Description
Firmware
There are three versions of the Trawl Explorer. Each version has a different firmware (called NBTE)
and different features.
NBTE V1 NBTE V2 NBTE V3
Name of firmware FIRM121 FIRM126 FIRM128
Autorange feature no yes yes
Target strength on echograms no no yes
Technical Specifications
Uplink frequency 30 to 60 kHz
Range to vessel up to 2500 m*
Sounder broadband frequency Configurable between 120-210 kHz
Sounder range V1/V2 5 to 80 m - V3 5 to 160 m
Data update rate Depth: 1-8 sec. - Temp/Battery/Height/Pitch&Roll:
every 6 sec.
Echogram update rate V1 up to 1 image/second - V2/V3 up to 3 images/second
Pitch angle ±90°
Roll angle V1 ±90°; V2, V3 ±180°
Pitch & roll accuracy ±0.1°
Depth resolution 0.1m with 0.1% accuracy
Temp measurement range -5° C to +25° C
Temp accuracy ±0.1° C
Battery type Lithium-Ion
Typical battery life: 30-75 hours (up to approx. 35 hours for the mini Trawl
Explorer) †
Standard: 8-12 hours ‡
Charging time Fast Charge: 4 hours
Weight in air (with housing) • Standard : 16 kg
• Mini : 5 kg
Weight In water (with housing) • Standard : 4,1 kg
• Mini : 0.9 kg
| 9
Trawl Explorer | V7 | Introduction and Presentation
Warranty 2 years (Sensor & Battery)**
*Reference only. Depends on functions enabled. / † Depends on sensor uplink power and options. /
‡ Based on average charging time. / **Marport Standard Marine Limited Warranty
Beamwidth
Beamwidths for uplink pings:
Beamwidth @ 35 kHz @ 50 kHz @ 60 kHz
-3dB 46° 40° 30°
Beamwidths for up and down pings:
Beamwidth @ 125 kHz @ 160 kHz @ 200 kHz
-3dB 26° 24° 22°
Outline dimensions
Trawl Explorer
Mini Trawl Explorer
| 10
Trawl Explorer | V7 | Introduction and Presentation
Main Parts
External View
1. Retainer screw
2. Model/serial
number
3. Metal strap
4. Transducer
5. Stabilizer board
6. Pressure sensor
7. Temperature sensor
8. Positive charge
9. Negative charge
10. Water switch
11. Shoulder bolts
The serial number may also be written on a plate on the side of the housing.
CAUTION:
• Do not put foreign objects into depth sensor opening or try to open it.
• Do not remove the shoulder bolts from the outside of the sensor
It may damage the components.
On the transducer, up and down sounders are written with the letters
A (down) and B (up). On older sensors, down sounder is marked by a
circle.
| 11
Trawl Explorer | V7 | Introduction and Presentation
Operational Mode Indicator
Indicators from the transducer
State Situation Operation LED
Charging Charger plug is
connected.
Batteries are charging. No light.
Running Sensor is in water or
activated with jumper.
After an initialization phase,
echo sounder is operating.
Flashing red
Configuring Sensor is out of water. Configuration via wireless
communication.
Turns off after 10 minutes
without user action.
Flashing green
| 12
Trawl Explorer | V7 | Sensor Configuration
Sensor Configuration
Learn how to configure Trawl Explorer sensor settings.
Note: This guide refers to the following versions of Mosa2: 02.07. If you use another
version, the visual interface and options may vary.
Installing Mosa2
If Mosa2 is not already installed on the computer, you need to install it to configure the sensor.
About this task
Important: If the computer is under OS X Mavericks, Yosemite or El Capitan, use Mosa2
version 02.03.
Procedure
1. Double-click the *.dmg file received from Marport.
2. From the installation window that appears, drag Mosa2 icon to Applications.
Mosa2 is added to the Launchpad .
3. From the Launchpad , drag Mosa2 icon to the Dock at the bottom of the screen.
Click its icon in the Dock to open it.
| 14
Trawl Explorer | V7 | Sensor Configuration
4. Systems with a Mac Pro under OS X Mavericks (Mosa2 version 02.03 only): you need to
launch a script that is in the installation package. This operation has to be done only once:
a) Click the magnifying glass from the top right corner of your screen and type Terminal.
b) Select Terminal from the results.
c) In the terminal, enter sh /Volumes/Marport-Mosa2/MosaPatchForMavericks.sh
d) When prompted, enter the administrator password.
e) Close the terminal.
f) Open Mosa2 and check if the script has worked. If Mosa2 does not open, it means the script
has not worked. Repeat the procedure and make sure you enter the correct command line.
5. If you have an error message when trying to open Mosa2, change the Security & Privacy
settings:
a) From the upper left corner of the screen, click Apple menu > System Preferences > Security
& Privacy .
b) Click the lock icon and enter the password, if applicable.
c) At Allow apps downloaded from, select Anywhere, then close the dialog box.
d) If you are under macOS Sierra, Anywhere option is not displayed by default. To display
Anywhere:
• Click the magnifying glass from the top right corner of your screen and type Terminal.
•Click Terminal from the results.
• Enter in the terminal: sudo spctl --master-disable.
• Press enter.
Anywhere option is now displayed in Security & Privacy preferences.
Connecting the Sensor to Mosa2
To configure the sensor, you need to connect it to Mosa2 using a wireless communication or using
the Configuration Cable.
About this task
Note: Use Mosa2 02.05 and above for compatibility with the Configuration Cable product.
For more details about the Configuration Cable, refer to its Quick Reference Guide.
| 15
Trawl Explorer | V7 | Sensor Configuration
Procedure
1. To connect the sensor using a wireless communication:
a) Connect the water-switch. The LED flashes red.
b) Disconnect the water-switch. After a few seconds, the LED flashes green.
c) Open Mosa2, then wait a few seconds for the sensor to be recognized. When it appears on the
discovery page, click .
2. To connect the sensor using the Configuration Cable:
a) Move other electrical devices minimum 1 m away from the computer.
b) Connect the USB connector directly to the computer. Mosa2 opens automatically and the
startup wizard is displayed. The LED on the plug is solid blue.
c) Connect the three-pin plug to the sensor. The LED on the plug blinks alternatively blue and
green.
d) Wait a few seconds. The configuration page of the sensor is displayed on Mosa2. The LED on
the plug is solid green.
Results
The sensor configuration page is displayed.
| 16
Trawl Explorer | V7 | Sensor Configuration
Note: You can keep the Configuration Cable continuously connected by USB, and virtually
eject or connect it when Mosa2 is in discovery mode. Click Menu > Eject Config Plug or
Connect Config Plug. If ejected, the cable stays disconnected until you virtually connect to it
or manually disconnect then connect it.
Troubleshooting: If the sensor is not detected by Mosa2, the issue might come from the
short-range wireless connection of the computer.
1. Close Mosa2.
2. Click the short-range wireless symbol in the top-right corner of the menu bar while
holding the Shift (#) + ALT (#) keys on your Mac's keyboard.
3. Click Debug > Remove all devices.
4. Open Mosa2.
What to do next
You can now configure the sensor settings.
If you want to disconnect the sensor, click Menu > Disconnect.
| 17
Trawl Explorer | V7 | Sensor Configuration
Sounding Modes
The sensor can send pings according to three different sounding modes.
Down 1
Sensor sends pings towards down direction (1) only.
You can see fish going into the trawl.
Pings are sent quicker than with the other modes, so more
data is received, which enables a better horizontal resolution.
This mode is recommended for better quality echogram
images.
Down 1 + Up
Sensor sends pings towards down (1) and up (2) directions.
With the down sounding, you can see fish going into the
trawl. With the up sounding you can see if fish are missing
the trawl and passing above the headrope. This way, you can
correct the trawl position.
Fewer pings are sent because they are distributed between the
2 directions. As a result, data arrives slower to the receiver
and echograms are of lesser quality.
Down 1 + Down 2
Sensor sends 2 consecutive pings towards down direction (1
and 2).
This mode is useful if you need to send two different pings
towards the down direction. For example, sending one short
and one long ping, or sending one low frequency and one
higher frequency ping.
Like down + up mode, fewer pings are sent because they are
distributed between the two different down soundings. As a
result, data arrives slower to the receiver and echograms are
of lesser quality.
| 18
Trawl Explorer | V7 | Sensor Configuration
Configuring the Uplink, Up and Down Settings
You can configure different settings for uplink, down and up soundings.
Before you begin
The sensor is connected to Mosa2.
About this task
Remember: Always click Apply after you change a setting and make sure there is a green
check mark .
Procedure
Click the tab Trawl Explorer.
Uplink
Procedure
From TE Uplink Frequency, enter a frequency for the signal toward the vessel.
Important: This parameter must be the same in the sensor settings in Scala/Scala2.
Up/Down Soundings
Procedure
1. From NBTE Setup Options, select the sounding mode (see Sounding Modes on page 18 for
more information).
| 19
This manual suits for next models
2
Table of contents
![Humminbird ] 981 Installation & operation manual](/data/manuals/2i/r/2ir90/sources/humminbird-981-fish-finder-manual.jpg "Humminbird ] 981 Installation & operation manual")
