Digital Antenna PowerMax 4KSBR-50M Manual de instalação e operação - Página 8

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Unplug the 12VDC power supply from the repeater and the power source. Re-

plug the 12VDC power supply into the power source and test for 5VDC power on

the output plug. 5VDC will only be available if the power supply light is green on

the black box and solid red on the cigarette adapter. 5VDC will not be available at

the plug if the LED on the power supply box is flashing red. The power supply

must be reset by unplugging it from the power source.

If the red light continues to flash on the power supply box after reset (unplugging

from power source and plugging back in), the antennas need to be re-located until

the light on the power supply box and repeater remain green. If analog service is

being used, contact Digital Antenna.

e. COVERAGE PROBLEMS

If the DA4000SBR unit does not indicate a red light and the coverage area appears to be

smaller than anticipated, one or more of the following may limit the signal strength to the

area.

Cell Phone Bars - The bars on the cell phone do not indicate coverage area. One

bar may be adequate to successfully place and receive calls. Test coverage area by

successfully completing calls while disregarding bar indicator.

Physical obstructions degrading the cell signal – the path of the cell signal is

weakened by objects. Large metal objects block or reflect the signal. Inspect the

coverage area, rearrange any objects in the path of the cell signal or relocate the

indoor antenna.

Output Power Control – The DA4000SBR has an internal output power control

circuit that automatically lowers the power when the inside and outside antenna

are located too close. Verify that inside and outside antennas are located at least

25' apart or more and separated by an exterior wall.

Weak Outside Signal – If the outside signal is very weak, the interior coverage

area will be small. As you travel away from all available cell towers the interior

coverage area will lessen until no signal is present outside to amplify.

Cabling – examine coaxial cable run and verify that the cable is not kinked,

coiled or damaged. Re-locate cable to avoid kinks or coils. The serial number on

the DA4000SBR unit must be available.

f. COAXIAL CABLE RECOMMENDATIONS

The DA4000SBR system includes 50' of Digital Antenna's PowerMax

loss cable and connectors for easy installation. If the application requires more than the

supplied cable, PowerMax

100' replacement cables are available. Only Digital Antenna authorized cable can be used

to complete the installation. Unauthorized cable usage can be detected and voids the

warranty. LMR400 cable by Times Microwave may be used for cable runs less than 150',

LMR600 may be used for runs less than 200'. For cable runs greater than 200', contact

Digital Antenna to verify cable selection.

DA340 ULTRA low loss 25' extension cable and 75' or

ULTRA low