Raymarine AXIOM 2 XL Installation Instructions Manual Download

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For viewing angles for your product refer to the

Technical specification

6.8 EMC installation guidelines

Raymarine® equipment and accessories conform to the appropriate
Electromagnetic Compatibility (EMC) regulations, to minimize electromagnetic
interference between equipment and minimize the effect such interference
could have on the performance of your system.

Correct installation is required to ensure that EMC performance is not
compromised.

Note:

In areas of extreme EMC interference, some slight interference may be
noticed on the product. Where this occurs the product and the source of
the interference should be separated by a greater distance.

For

optimum

EMC performance we recommend that wherever possible:

• Raymarine® equipment and cables connected to it are:

– At least 1 m (3.3 ft) from any equipment transmitting or cables carrying

radio signals e.g. VHF radios, cables and antennas. In the case of SSB
radios, the distance should be increased to 2 m (6.6 ft).

– More than 2 m (6.6 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 product is supplied from a separate battery from that used for engine

start. This is important to prevent erratic behavior and data loss which can
occur if the engine start does not have a separate battery.

• Raymarine® specified cables are used.

• Cables are not cut or extended, unless doing so is detailed in the

installation manual.

Note:

Where constraints on the installation prevent any of the above
recommendations

, always ensure the maximum possible separation

between different items of electrical equipment, to provide the best
conditions for EMC performance throughout the installation.

RF interference

Certain third-party external electrical equipment can cause Radio Frequency
(RF) interference with GNSS (GPS), AIS or VHF devices, if the external
equipment is not adequately insulated and emits excessive levels of
electromagnetic interference (EMI).

Some common examples of such external equipment include LED lighting
(e.g.: navigation lights, searchlights and floodlights, interior and exterior
lights) and terrestrial TV tuners.

To minimize interference from such equipment:

• Keep it as far away from GNSS (GPS), AIS or VHF products and their

antennas as possible.

• Ensure that any power cables for external equipment are not entangled

with the power or data cables for these devices.

• Consider fitting one or more high frequency suppression ferrites to the

EMI-emitting device. The ferrite(s) should be rated to be effective in the
range 100 MHz to 2.5 GHz, and should be fitted to the power cable and
any other cables exiting the EMI-emitting device, as close as possible to
the position where the cable exits the device.

Compass safe distance

To prevent potential interference with the vessel's magnetic compasses,
ensure an adequate distance is maintained from the product.

When choosing a suitable location for the product you should aim to maintain
the maximum possible distance from any compasses. Typically this distance
should be at least 1 m (3.3 ft) in all directions. However for some smaller
vessels it may not be possible to locate the product this far away from a
compass. In this situation, when choosing the installation location for your
product, ensure that the compass is not affected by the product when it
is in a powered state.