3. Pre-Installation Guidelines
a. INSTALLATION TOOLS
The following tools are required for installation:
•Standard wrench and philips head screwdriver
•Standard drill with ½” bit (optional)
•Cellular phone operating on 800 or 1900 MHz bands (any USA or Canadian cellular phone except Nextel)
•Wire fasteners (optional)
•Multi-meter for testing electrical continuity and AC and DC line voltage (for troubleshooting only)
b.INSTALLATION PROCEDURE
Description of 4KSBR-50U system
The 4KSBR-50U Dual Band Wireless Amplifier/Repeater system provides cellular signal coverage to interior areas that have low signal strength to adequately operate a cellular phone. In these poor interior coverage areas it becomes difficult to place or receive calls and usually results in a dropped call. The 4KSBR-50U dual band amplifier/repeater system provides increased reception indoors by filtering, re-directing and amplifying the available exterior signal. This translates into fewer dropped calls with clearer connections and stronger signals. The 4KSBR-50U dual band system operates with all carriers in the USA and Canada except Nextel/iDEN providers.
Re quired
O u ts id e Cell S ig na l (-9 0 to -7 0dB m )
Cell Site
P/N 288-PW
Outside
Antenna 
Enhanced Signal
R e quired
m in. 40' plus stru cture be tw een a nten nas
P/N 340-50NM | | | P/N 135-RD |
|
50' Cable | | | | |
| | | | | Inside Antenna |
P/N DA4000SBR | |
Amplifier/Repeater Unit | |
Cell Signal degraded 
by exterior wall, distance trees & foliage, etc....
Functional Operation of 4KSBR-50USystem
Installation requirement: Separation Distance of 40' or more plus a structure between outside and inside antennas
The 4KSBR-50U system contains a dual band low power indoor antenna, 60dB gain amplifier/repeater unit and 9dB gain omni-directional outdoor antenna. Both antennas must be installed and operate in a vertical position. The indoor antenna must be used with cable and stand. The outdoor omni-directional antenna, PN 288-PW, is installed outside