Marport Trawl Explorer - Troubleshooting; Mosa Does Not Start Due to Error Message; Sensor Has Difficulty Connecting to Mosa; Data in Scala Is Wrong

Trawl Explorer | V2 | Servicing and Maintenance
Troubleshooting
Read this section to know how to solve common problems.
Mosa does not start due to error message
Mosa displays an error message saying Mosa cannot be opened.
Your Mac security preferences do not allow you to open software not downloaded from the App
Store.
1.
From the upper left corner of the screen, click Apple menu> System Preferences> Security &
Privacy.
2.
From the lower left corner of the Security & Privacy dialog box, click the lock icon and enter
your password (if applicable).
3.
At Allow apps downloaded from, select Anywhere.
4.
For some macOS Sierra versions, click Open Anyway or see Installing Mosa on page 12 to know
how to add the Anywhere option.
5.
Close the dialog box.
Sensor has difficulty connecting to Mosa
Mosa is very slow or unable to detect the sensor.
The bluetooth does not work correctly.
• Connect and disconnect the sensor to a charger to make the sensor reboot.
The sensor is out of the bluetooth range.
1.
Bring the sensor closer to the computer.
2.
To extend the Bluetooth range, you can use a Bluetooth key (ref. TRENDnet TBW-106UB) with
a USB extender connected to the computer. Place the Bluetooth key as close as possible to the
sensor.
Data in Scala is wrong
Data displayed in Scala is wrong and the echogram is noisy.
There are signal interferences.
1.
First, check that the sensor frequencies and telegrams are the same in the sensor configuration
(via Mosa) and the receiver configuration (via Scala).
2.
Check the frequencies of your other sensors to make sure there is enough distance between
them.
3.
Check the noise on the spectrum (see Checking Noise Interference on page 39). If the frequency
where the sensor is placed is too noisy, change for a less noisy frequency: see Configuring the
Uplink, Up and Down Settings on page 16.
4.
You can increase the uplink power of the sensor to increase the power of the signal transmitted
to the receiver: see Configuring the Uplink Power on page 24.
5.
You can change the Echogram filter on Scala receiver page:
a.
From Scala, click Menu > Expert Mode and enter the password copernic.
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