3-12 ADS TRITON+ Manual
through ADS also include detailed installation
instructions.
1. Determine the appropriate location in the road near the
manhole to install the antenna:
Locate the antenna in the road between 18 and 30 inches
(457 and 762 mm) from the manhole in which the monitor
is installed. Position the antenna as far as possible from
the massive iron frame and buried flange to prevent
shunting of the RF signal.
Avoid locations at which cars will remain parked over the
antenna for extended periods (hampering the signal
strength).
Select a location that drains well so that water will not
collect over the antenna, blocking the signal.
Choose a location that is as flat as possible with stable
base material.
Select a location where the antenna will experience
minimal direct impact from road traffic, where possible.
Make sure the location exists beyond the manhole’s iron
rim beneath the road surface. This will enable you to
access the manhole corbel when drilling the channel for
the antenna cable.
Verify that no buried utility cables exist in the area in
which drilling will occur for the antenna installation.
Consider contacting a Underground Utility Locating
Service for assistance.
2. Mark the location for the antenna installation, and then mark
the location to drill the corbel hole 2.5 to 3 inches (64 to 76
mm) back from the edge of the antenna hole.
3. Cut a 9-inch (229-mm) long by 4-inch (102-mm) wide by 0.75-
inch (19-mm) deep hole in the road using the non-rotating
demolition hammer (in the hammer only mode) with the
chisel/grinder. This will serve as the installation location for
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