Gps Receiver Location Requirements - Motorola PTP-SYNC Installation Manual

3. Grounding and lightning protection
Grounding cable requirements
When routing, fastening and connecting grounding cables, the following requirements
must be implemented:
•
Grounding conductors must be run as short, straight, and smoothly as possible, with
the fewest possible number of bends and curves.
•
Grounding cables must not be installed with drip loops.
•
All bends must have a minimum radius of 203 mm (8 in) and a minimum angle of
90°. A diagonal run is preferable to a bend, even though it does not follow the
contour or run parallel to the supporting structure.
•
All bends, curves and connections must be routed towards the grounding electrode
system, ground rod, or ground bar.
•
Grounding conductors must be securely fastened.
•
Braided grounding conductors must not be used.
•
Approved bonding techniques must be used for the connection of dissimilar metals.

GPS receiver location requirements

The GPS receiver for PTP-SYNC must be mounted at a location that meets both the
general protection requirements and the following requirements:
•
It must be possible to protect the installation as described in
requirements on page 12.
•
It must have 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.
phn-1613_008v000 (Jun 2011)
PTP-SYNC Installation Guide
General protection
Page 13