Locate the power input connector as close to the DBR2500 as possible.
Mobile Operation
The vehicle battery must have a nominal rating of 12V� Never connect the tranceiver to a 24V
battery. Be sure to use a 12V battery that has sucient current capacity. If the current to the
tranceiver is insucient, the display may darken during transmission, or transmitting power may
be dramatically reduced�
1� Route the DC power cable supplied with the radio directly to the vehicle’s battery terminals
using the shortest path from the DBR2500�
-We recommend that you do not use the cigarette lighter socket, as some cigarette lighter
sockets introduce an unacceptable voltage drop�
- The entire length of the cable must be insulated so that it is protected from heat,
moisture, and engine secondary (high voltage) ignition system and cables�
2� After installing the DC power cable, to avoid the risk of damage, please use heat-resistant
tape to tie together the DC power cable with the fuse box� Be sure to reinforce the entire
power cable with heat resistant tape�
3� In order to avoid the risk of a short circuit, please disconnect the connection with the
negative (-) battery terminal, then connect to the radio�
4.Conrm the correct polarity of the connections, then attach the power cable to the
battery terminals; red connects to the positive (+) terminal and black connects to the
negative (-) terminal�
- Use the full length of the cable without cutting o excess even if the cable is longer
than required� In particular, never remove the fuse holders from the cable�
Red
Black
5� Reconnect any wiring removed from the negative terminal�
6� Connect the DC power cable to the DBR2500’s power supply connector
- Press the connectors rmly together until the locking tab clicks.
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