Digital Antenna 4KSBR-50U Manual Do Utilizador

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•  If the outside and inside antennas are separated by 40’ or more and an exterior 
wall, the red light may be indicating the use of analog phones. Contact Digital 
antenna if you are using an analog phone.  
 
No light on Repeater – indicates improper installation and the power supply is stopping 
power to the repeater or no power is available. Proceed with the following corrective 
actions: 
•  Only after all cables and antennas are securely attached, verify that the power 
switch on the DA4000SBR unit is in the ON position. 
•  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. INTERIOR 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 
40’ 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. To increase coverage area, use one of Digital Antenna’s high 
gain outside and/or inside antennas (pg 15). 
•  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.  
 
The repeater system only amplifies existing outside cell signal; it does NOT create a cell 
signal.  If no outside signal is present, the repeater has no signal to amplify. The outside 
antenna should be mounted as high as possible to capture the available cell signal.