Simrad TV80, Справочное руководство

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Note
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. 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.
• If your sensors are set up to use communication channels too close to each other (for
example, if you have chosen channels 4, 5 and 6), this will limit the speed of the vessel.
The reason for this is the Doppler effect.
• If you operate at the maximum range of the sensors, you may be able to increase this
range slightly if you use lower communication channels. This is because the lower
communication channels use lower transmission frequencies.
The following table shows the equivalence of communication channels to frequencies of
different catch monitoring sensors
Frequencies PX TrawlEye
Channel
PX
MultiSensor
mk2
Channel
PX
MultiCatch
Channel
PX Universal
Channel
PI Sensors
Channel
1L 1L 1L 39400 – 40700 1
1H 1H 1H
Not used
2L 2L 2L 40800 – 42100 2
2H 2H 2H
Not used
3L 3L 3L 42200 – 43500 3
3H 3H 3H
Not used
4L 4L 4L 43600 – 44900 4
4H 4H 4H
5L 5L 5L
45000 – 46300
5
5H 5H 5H
6L 6L 6L 46400 – 47700 6
6H 6H 6H
7L 7L 7L 47800 – 49100 7
7H 7H 7H
8L 8L 8L
1 – 30
49200 – 50500 8
8H 8H 8H Not used
Simrad TV80 Reference Manual