Raymarine AXIOM 2 PRO, Installation Instructions Manual

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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.
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