Beam Direction function
The purpose of the Beam Direction function is to turn the echogram presentation up-side down. This is typically used if the EK80 transducers are located on the seabed, or on the bottom of a fish cage, facing upwards.
How to open
This function is opened from the Active menu.
Description
The EK80 is a versatile Wide band scientific echo sounder. One of its many areas of application is in fish farming. One single EK80 installation can then be used to monitor the fish behaviour and food waste in a large number of fish cages. The transducers are then physically installed inside the cages with the transducer facing upwards.
The EK80 transducers can also be placed at the seabed in open water - or in a river - for long-term monitoring of the ecosystem. Due to the fact that several transceivers and transducers can be used simultaneously, you can for example establish an acoustic
"fence" to monitor fish passage.
In order to adjust the echogram presentations to this use, the Beam Direction function is introduced. Unlike the presentation on a traditional fish finding echo sounder, you can select Upwards mode. The presentation is then adjusted for a transducer located at the bottom of the echogram looking up towards the sea surface.
Details
Downwards
The echogram presentation on the EK80 is shown as on a traditional fish finding echo sounder. The sea surface is at the top of the echogram. The transducers are located close to the surface, and the beams are faced from the top of the presentation and towards the
bottom. Use this presentation when the EK80 transducers are installed under the hull of a vessel.
Upwards
The echogram presentation on the EK80 is turned up-side down. The sea surface is still at the top of the echogram. However, the transducers are located at the bottom, and the beams are pointed from the bottom of the presentation and upwards
towards the surface. Use this presentation when the EK80 transducers are installed on the seabed, or at the bottom of fish cages or tanks.
Apply to All
Select Apply to All if you wish to use the chosen settings on all the echograms of the same type.