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Chapter 4 – Installation
RT430/434
for more than a few hundred kilometers or was unpowered for many weeks. The dry-
contact L
in the rear panel closes when maximum accuracy is achieved.
OCKED
The antenna must be mounted outdoors, in a vertical position, with an unobstructed
view of the sky. The antenna should be placed above the height of the building as
much as possible. A partially obstructed sky view will compromise the unit's
performance.
Figure 12: Recommended position for installing the GNSS Antenna
The antenna should not be located under overhead power lines or other electric light
or power circuits, or from where it can fall onto such power lines or circuits.
An antenna mast of roof-mounting-kit and any supporting structure must be
properly grounded to provide protection against voltage surges and built-up static
charges. It is recommended the use of a surge arrester for the entire wiring where
there is external antenna cabling.
The antenna must be connected to the unit by using a coaxial cable with a 50 Ω
impedance. The antenna cable should be routed through a conduit, shielded from
rain and/or solar radiation. The conduit should not be shared with any power circuits.
It is recommended to use a 3/4 PVC conduit, threaded on one end. To install it, cut
down to the intended size and screw the antenna in the conduit. The conduit can be
fixed on the wall, so that the antenna is above the wall limit and free from lateral
obstacles, as shown in the next figure.
Figure 13: Recommended position GNSS Antenna conduit installation
RT430/434
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