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Antenna Mounting
The best mounting location for the antenna is in the center of a large, flat
conductive surface. In almost all vehicles, these requirements are best
satisfied by mounting the antenna at the center of the roof. Some vehicles
have a large trunk lid that provides a good antenna location. If the trunk lid
is used, connect grounding straps between the trunk lid and vehicle chassis
to insure the trunk lid is at chassis ground.
iM1000 Mounting
The standard mounting of the iM1000 can be mounted on different types of
mounting surfaces. Be sure the mounting surface is able to adequately
support the weight of the iM1000. Allow sufficient space around the
iM1000 for free air flow for cooling. Be sure the unit is close enough to the
vehicle operator to permit easy access to operating indicators. Although the
iM1000 can be mounted to a plastic dashboard, it is recommended that the
mounting screws be located so they penetrate the supporting metal frame of
the dashboard.
DC Power Cable Installation
The iM1000 must be operated only in negative ground electrical systems.
Reverse polarity does not damage the iM1000; however, iM1000 protection
circuits cause the cable fuse to open. Check the ground polarity before you
begin installation to prevent wasted time and effort.
The DC power cable shipped with the iM1000 is long enough for
installation in most vehicles. Begin the power cable installation in the
following manner.
1. Determine a routing plan for the power cable with reference to where the
iM1000 is to be mounted.
Figure 2. - Power Cable Routing Into the Engine Compartment
2. Locate the nearest available chassis ground mounting point and shorten
the black lead to remove excess cable length.
3. Locate the fuse holder as close to the battery as possible and away from
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