GR30/GM30/GR50, Installation
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3 Installation
3.1 Before Installation
Installation location It is recommended that the instrument is installed so that it is
• protected from mechanical influences and lightning
• within 70 m of the antenna, without the need to use inline amplifiers.
• located sufficiently far enough away from potential sources of radio frequency
interference. High-power signals from nearby radio, radar or GSM/GPRS/UMTS cell
towers can cause problems with GNSS tracking. Such interference is not harmful to
the instrument but could cause a loss of GNSS data.
Installation
orientation
• For inside assembly, the instrument can be installed in any direction
• When installing the instrument outside, orientate the instrument vertically so that
the connector points are pointing downwards
Cable installation Ensure that the cables between the instrument and antenna are positioned to prevent
them from becoming bent, stretched or squeezed. For the installation of the cables,
the general rules for the installation of electrical wiring apply.
Please consider that a well-planned and thoroughly carried out electric installation not
only protects the cables against damage, but also looks professional.
For detailed installation information, refer to the "GNSS Reference Station and
Networks - An Introductory Guide".
Using the wireless
slot in device port
When using the wireless slot in device port with any slot in radio/GSM/3G/CDMA
module it is recommended to use an antenna extension cable and mounting bracket
to correctly position the antenna vertically, and away from the Bluetooth/WLAN
antenna, as shown in the following installation options.
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