2-7
Installation
Chapter 2: Installation
98-144591-D
Mounting the Units
2.2.4 Recommended ATU installation
On a metal-hull vessel
Install the ATU using the ATU Mounting Kit. The kit is stainless steel which can be bolted or welded to
ship's hull to ensure good and solid connection as the radio system primary ground point.
The mounting kit will, at the same time ensure straight and fl at mounting surface for the ATU cabinet
and provide good airfl ow around the ATU for better heat dissipation.
On a wooden or fi breglass hull vessel
Install the ATU using the ATU Mounting Kit. The kit is made of stainless steel and may be bolted to ship’s
hull and serve as the ATU grounding point and the radio system’s primary ground point.
The ground-plane should preferably be provided by as wide a surface as possible with shortest possible
connection to the ATU grounding point.
The ground-plane may be establish in various ways such as e.g. through connecting all accessible metal
parts together and connecting to the ATU ground point.
ATU Mounting Kit
An optional ATU Mounting Kit as shown below is available in two versions:
1. Comprises mounting plate and fi ttings for mast - part no. 737589
For mounting the ATU directly on a mast, where the Mounting Plate and fi ttings for mast can form a
suffi cient earth connection on a steel mast welded to the superstructure.
2. Comprises the mounting plate only - part no. 737588
To get an even mounting surface on an uneven support.
1
3 5
4
2
1. Nut M10
2. Toothed lock washer M10
3. Fitting for mast
4. Mountingplate for ATU
5. Treadrod M10
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