Simrad TV80, Reference Manual

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Direction
In order to do a proper configuration of the sensor, you must select if the sensor
is going to point to the vessel or to the gear. “Vessel” is typically used for spread
measurements. “Aft” is typically used for geometry measurements
Function
You can select the measurements you want your sensor to make. The available
options will vary according to the gear system you are working with, the location
you have chosen for the sensor and where it points to. Once you have selected your
measurement, the relevant additional required parameters are automatically shown.
Depending on the measurement (or function) selected, some other additional
parameters are needed.
Interval
The default value is (1:1)
Offset
Enter the offset value in order to have precise readings.
Blanking zone
When the sensor is set up to measure height from the middle of a trawl door, the
physical properties of the door can cause false echoes and hence wrong height
information. You can insert a “blank space” to inhibit false detections as the sensor
will disregard all echoes received from objects inside the defined zone. A typical
blanking zone is 1.5 metres from the sensor to the bottom of the trawl door.
Remote Code
Remote Geometry measurements are made using one “master” sensor and two
“remote” sensors.
Communication channel
All sensors are provided by Kongsberg Maritime AS with predefined communication
channels. When interfacing a SR type receiver unit, each sensor channel can contain 5
measurements.
It may be required to change one or more communication channels, and there may be
many reasons for this.
• You have more than one of each sensor. If you have two or more catch
monitoring sensors on board, you need to make sure they do not use the same
frequency range.For example, if you have three temperature sensors, they MUST
communicate on three different channels.
• Other vessels near yours use the same catch monitoring system (or similar) and
they have one or more of their sensors set up to the same communication channels
as you have. This will create interference as you will “read” other sensors.
Simrad TV80 Reference Manual