8
x
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.
x
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.
x
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.
x
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.
x
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.
x
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.
x
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
TM
ULTRA low
loss cable and connectors for easy installation. If the application requires more than the
supplied cable,
PowerMax
TM
DA340 ULTRA low loss 25’ extension cable and 75’ or
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.
