Radar Scanner Mounting Angle; Multiple Radar Scanners - Location Requirements; Quantum Wi-Fi Only Installation Requirements - Raymarine Quantum Radome Installation Instructions Manual

Radar scanner mounting angle

Ensure the Radar scanner rotates parallel to the
water line.
The Radar beam from the Radar scanner is
approximately 20° wide in the vertical direction, to
give good target detection even when your vessel
pitches and rolls.
Planing hull vessels, and some displacement hull
vessels, adopt a higher bow angle when the vessel is
at cruising speed. This may raise the Radar's main
radiation angle, and can cause poor detection of
nearby targets. It may be necessary to compensate
for the bow rise to ensure optimum target detection.
This can be achieved by fitting a wedge or washers
between the mounting platform and the base of the
Radar scanner, so that the Radar beam remains
parallel to the water line when the vessel's bow rises
at cruising speed.
Item Description
1 Wedge or washers
Multiple Radar scanners — location
requirements
Important location considerations when installing
multiple radar scanners on the same vessel.
• Scanners should be mounted above each other,
vertically separated by at least 0.5m (1.6ft). This
applies to all installation locations on the vessel.
• Multiple scanners should be mounted in a way
that minimizes interference between the vertical
beamwidths of the 2 scanners.
• In all cases, you should aim to achieve as much
physical separation as possible, to minimize any
potential interference.
20
3.9 Quantum Wi-Fi only
installation requirements
Whilst the Wi-Fi performance has been tested and
proven in many different installation scenarios, the
requirements below must be taken into consideration
before choosing a location for the Quantum
In systems with multiple MFDs, the Radar should
be connected to the MFDs that are located closest
to it, or to the MFDs with the clearest line of sight to
the Radar.
The maximum distance between MFD and Radar
will vary depending on the installation environment
(i.e. obstructions and interference).
Example 1 — Open air, line of sight in optimum
conditions
In optimum open air, clear line-of-sight conditions a
reliable connection is possible at distances up to 100
m (328 feet). However, there are many factors that
can influence this so a pre-installation site survey
should always be performed. For reliable Wi-Fi
performance the signal strength should be better
than –75dBm. The closer the signal is to zero the
better the Wi-Fi performance will be (e.g. –40dBm is
better than –75dBm). You can assess the potential
signal strength at the desired location during the
Pre-installation Site Survey using a Wi-Fi Analyzer
app on your smart device.
Example 2 — Signal passing through Fiberglass
coach roof
™ Radar.