Digital Antenna 4KSBR-50U Manual Do Utilizador

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of the building. (see specific section for Home/Office, marine and  RV installations) The 
omni-directional antenna should be installed on the side of the building with the 
strongest cellular signal as indicated by the bars on the cell phone. The inside antenna 
must be
 mounted in a central location in the building, RV or boat that is 40’ or greater 
from the outside antenna with as much vertical separation as possible. Vertical 
separation is better than horizontal. 
The inside and outside antennas also must be 
separated by an exterior wall and roof. Two power supplies are included to maximize 
installation flexibility. 
 
Typical In-Building Coverage 
The 5KSBR-50U system is designed to provide optimal coverage for up to a 3,000 SF to 
5,000 SF
 
interior area. Interior coverage varies based upon the outside signal strength 
and the interior building construction and materials. Typically the 4KSBR-50U system will 
penetrate 1-2 interior walls and 1 floor based upon construction material. To increase 
interior coverage area, use one of Digital Antenna’s high gain outside and/or inside 
directional antennas or use a cellular combiner and multiple inside antennas. (pg 15).  
 
Pre-installation Considerations 
 
Establish a site installation plan based upon desired interior coverage area  
•  The inside and outside antenna must have a separation distance of 40 feet or 
greater, the outside antenna must be outside and separated from the inside antenna 
by an exterior wall and roof, and both antennas must be in a vertical position.   
•  Identify the outside antenna location. If the outdoor coverage area is very poor, 
the outside antenna should be placed on the side of the building where the signal 
is the strongest. If the signal is equally strong outdoors, the outside antenna 
should be placed in a secure, unobstructed area. On an RV the antenna can be 
attached to the back ladder. On a boat the outside antenna should be mounted 
clear of metal objects, 3’ from other antennas and as high as possible.  
•  For maximum interior coverage the location of the indoor antenna should have a 
direct line-of-site to as much of the coverage area as possible. Never turn the 
repeater on without antennas and cables securely attached. 
•  Based upon the desired interior coverage area, choose a central location for the 
DA4000SBR repeater unit within 6’ of a 12VDC power receptacle. If the location 
of the DA4000SBR unit is not mounted within reach of the supplied 50’ cable, a 
25’ extension cable and 75’ or 100’ replacement cables are available (sold 
separately). The DA4000SBR unit is not waterproof and must be mounted in a 
dry location. 
 
 
c. ELECTRICAL POWER 
 
To maximize installation flexibility, the 4KSBR-50U system includes 2 power cord 
options.  
 
WARNING! 
Only the provided power cables are to be used with the 4KSBR-50U 
system. Using any other power cables will harm the DA4000SBR 
amplifier/repeater unit, can be detected and voids the warranty.