Specifications

Operation/Wiring 5
Chapter 3: Operation/Wiring
EMC Installation Guidelines
All Raymarine 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 correct
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.
The guidelines given here describe the conditions for optimum
EMC performance, but it is recognized that it may not be possible
to meet all of these conditions in all situations. To ensure the best
possible conditions for EMC performance within the constraints
imposed by any location, always ensure the maximum separation
possible between different items of electrical equipment.
For optimum EMC performance, it is recommended that wherever
possible:
• Raymarine equipment and cables connected to it are:
•At least 1 m (3 ft.) from any equipment transmitting or
cables carrying radio signals e.g. VHF radios, cables
and antennas. In the case of SSB radios, the dis-
tance should be increased to 2 m (7 ft.).
•More than 2 m (7 ft.) 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 is supplied from a separate battery from that
used for engine start. Voltage drops below 10 V in the power
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