Raymarine SR100 - Manual (Page 8)

5 Raymarine Sirius Weather System Installation Guide
Installation
EMC Installation Guidelines
Raymarine equipment and accessories are designed to the best industry
standards for use in the recreational marine environment.
Their design and manufacture conforms to the appropriate Electromagnetic
Compatibility (EMC) regulations, but correct installation is required to
ensure that performance is not compromised.
The guidelines given here describe the conditions for optimum EMC perfor
mance, 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 the cables connected to it are:
• At least 3 ft. (1 m) 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 7 ft. (2 m).
• More than 7 ft. (2 m) 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 product is supplied from a separate battery from that used for
engine start. Power supply voltages below the minimum specified for a
product, and starter motor transients, can cause the product to reset.
This will not damage the product, but may cause the loss of some
information and may change the operating mode.
• Raymarine specified cables are used. Cutting and rejoining these
cables can compromise EMC performance and must be avoided unless
doing so is detailed in the installation manual.
Suppression Ferrites
If a supplied cable is fitted with a suppression ferrite, the ferrite must not
be removed, unless it is necessary to facilitate installation. Any ferrite thus
removed must be replaced in the original position immediately installation
is complete.
If additional suppression ferrites are required, use only ferrites supplied by
Raymarine.
Connections to Other Equipment
If Raymarine equipment is to be connected to other equipment using a
cable not supplied by Raymarine, a Raymarine suppression ferrite MUST
always be attached to the cable near the Raymarine unit.