User's Manual

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NRD1 Manual - PRELIMINARY
Installation
The NRD1 is intended for elevation
sites such as utility poles, light poles,
towers and building roofs. In most
cases, T2 will provide assistance on
Mounting Location
When determining a mounting
location for the desired RF coverage,
the following parameters must be
considered:
• Topography
• Elevation
• Seasonal Changes
Topography: The 900 MHz signals
of the M2 endpoint radios and
NRD1 relay do not require direct line
of sight for successful
communication. However, the
signals cannot penetrate significant
structures such as hills, mountains,
large concrete buildings or clusters
of large foliage. The local
topography will dictate the RF
coverage of the area.
Elevation: The height of the NRD1 is
also very important to ensure the
desired coverage. In general, the
highest elevation possible will
optimize RF coverage.
Seasonal Changes: Installers
should be aware of tree foliage
INSTALLATION &
W
IRING
absent in winter and present in other
seasons. The water content of leaves
can potentially cause seasonal variance
in RF coverage.
Physical Mounting
The physical mounting of the NRD1
relay should observe the following
guidelines:
• The antenna should always be
mounted vertically upright.
• The antenna should be physically
isolated from obstructions,
especially any metal surfaces such
as tank walls, pipes and poles.
• The antenna should be physically
isolated from the power cable.
• Tie wraps should be used to
securely strap the power cables to
the mounting structure.
Three separate brackets are available
for mounting purposes
• Wallmount
• Polemount Horizontal
• Polemount Vertical