PTP 300 and PTP 500 Series User Guide Mounting options for the PTP-SYNC GPS receiver
phn-1115_006v000
Sep 2010
2-29
Mounting options for the PTP-SYNC GPS receiver
If PTP-SYNC is the selected TDD synchronization method for PTP 500, with a GPS
receiver as the timing reference source, then the GPS receiver must be mounted as
described in this section.
CAUTION
Ensure that the GPS receiver module is mounted in a position where all
protection requirements can be met.
GPS receiver location requirements
The GPS receiver for PTP-SYNC must be mounted at a location that meets the
following requirements:
• It must be possible to protect the installation as described in General protection
requireme
nts on page 2-15.
• It must hav
e an un-interrupted view of the sky.
• It must receive an adequate signal from at least four GPS satellites.
• It must be mounted at least 1 m (3 ft), preferably 2 m (6 ft), away from other GPS
receiving equipment.
• It must not be sited in the field of radiation of co-located radio communications
equipment and should be positioned at a distance of at least 3 m (10 ft) away.
Mount the GPS receiver on the wall of the equipment building, if there is a suitable
location on the wall that can meet these requirements. Failing that, mount it on a
metal tower or mast.
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