PMP 450 Planning Guide
Mounting the GPS receiver (CMM or UGPS) module on the
equipment building
If mounting the GPS receiver on the equipment building, select a position on the wall that meets the following
requirements:
•
It must be below the roof height of the equipment building or below the height of any roof-mounted equipment
(such as air conditioning plant).
•
It must be below the lightning air terminals.
•
It must not project more than 600mm (24 inches) from the wall of the building.
If these requirements cannot all be met, then the module must be mounted on a metal tower or mast.
Mounting the GPS receiver (CMM or UGPS) module on a metal tower
or mast
If mounting the GPS receiver module on a metal tower or mast, select a position that meets the following
requirements:
•
It must not be mounted any higher than is necessary to receive an adequate signal from four GPS satellites.
•
It must be protected by a nearby lightning air terminal that projects farther out from the tower than the GPS
receiver module.
•
It must meet all the requirements stated in
Protection requirements for a mast or tower installation
on page
1-118
pmp-0047 (March 2014)
Содержание PMP 450
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