Installation Guide

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Figure 3-2 GPS Installation Requirements
 No major blocking from buildings in the vicinity. Keep the rooftop buildings a
distance away from the GPS. Make sure the space atop within 90 degrees (at least
45 degrees) is not blocked by any buildings.
 Avoid installing the GPS in the vicinity of any other transmitting and receiving
devices, such as under the microwave antenna or high voltage cable. Avoid
interference from other transmitting antennas to the GPS antennas. Avoid the
direction of radiation from other transmitting antennas to the GPS antenna
 The GPS antenna should be installed within 45 degrees to the lightning rod.
 When two or more GPS antennas are installed, it is recommended to keep the
spacing of more than 2 meters and install multiple GPS antennas in different
locations to prevent simultaneous interference.
 GPS antenna feeders cannot be grounded together with ground conductors of
interfering equipment such as air conditioners, motors, and pump motors, etc. to
prevent external interference from being introduced into the antenna system.
The only installation step is to fix the GPS mounting bracket on the gNB with the M4*14
screws (Figure 3-3).
Figure 3-3 GPS Antenna Installation
NOTE: The gNB may adopt different models of GPS antenna, so the GPS antenna may not the same
as above figure. But the installation steps that fix it on the gNB is the same.