ST80 Masterview Operation and Setup
153
Chapter 5: EMC and Servicing Guidelines
5.1 Important information
All Autohelm equipment and accessories are designed to the best
industry standards for use in the leisure marine environment.
Their design and manufacture conforms to the appropriate
Electromagnetic Compatibility (EMC) standards, but good
installation is required to ensure that performance is not
compromised. Although every effort has been taken to ensure that
they will perform under all conditions, it is important to understand
what factors could affect the operation of the product.
5.2 Installation
To avoid the risk of operating problems, all Autohelm equipment
and cables connected to it should be:
• At least 1m (3 feet) from any equipment transmitting or cables
carrying radio signals, e.g., VHF radios, cables and antennas. In the
case of SSB radios, the distance should be increased to 2m (7ft).
• More than 2m (6ft) from the path of a radar beam. A radar beam can
normally be assumed to spread 20 degrees above and below the
radiating element.
• The equipment should be supplied from a different battery than the
one used for engine start. Voltage drops below 10V in the power
supply to our products can cause the equipment to reset. This will
not damage the equipment, but will cause the loss of some
information and can change the operating mode.
• Genuine Autohelm cables should be used at all times. Cutting and
rejoining these cables can compromise EMC performance and so
should be avoided unless doing so is detailed in the installation
manual.
• If a suppression ferrite is attached to a cable, this ferrite should not
be removed. If the ferrite has to be removed during installation it
must be reassembled in the same position.
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