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DR-2X / DR-2XE Operating Manual 3
Setting up the Repeater
Safety measures for installation
Note the following precautions when installing this repeater:
Use good engineering, proper grounding and protective devices to protect the repeater from power surges,
lightening and electrical damage via the power and external antenna connections.
Do not install the repeater in a place where there is extreme vibration, where there is a lot of dust, excessive
humidity or high temperature, or where it is exposed to direct sunlight.
Install the repeater in a well ventilated position, so heat dissipation is not obstructed. The heat sink becomes
hot when transmitting for long periods of time.
Do not place any objects on top of the repeater.
Note that there is a risk that hum and noise may be introduced, depending on the installation conditions and
the external power source used.
Installing the repeater
Place the repeater on a flat and level rack or shelf, with its bottom side down. We recommend securing the
wings of the repeater front panel to the equipment rack or shelf with bolts.
z Mounting on rack or shelf
z Mounting on a desk
When using the repeater
in a desktop location in-
stead of a rack or shelf,
attach the four supplied
legs onto the bottom of
the repeater case.
About electrical grounding
The DR-2X/DR-2XE repeater, like any other communications apparatus, requires an effective ground system
for maximum electrical safety and best communications effectiveness. A good ground system can contribute
to station efficiency in a number of ways:
It can minimize the possibility of electrical shock to the
operator.
It can minimize RF currents flowing on the shield of
the coaxial cable and the chassis of the repeater.
Such currents may lead to radiation, which can
cause interference to home entertainment devices or
laboratory test equipment.
It can minimize the possibility of erratic repeater/
accessory operation caused by RF feedback and/or
improper current flow through logic devices.
To prevent damage from lightning,
atmospheric electricity, electrical shock,
etc., provide a good earth ground.
Use a short, thick, braided
cable to connect your
station equipment to
the buried ground rod
(or alternative earth
ground system).
The figure above shows the rear panel of the DR-2X.
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