1 System Introduction Overview Bravo Tech Inc's Multi-Carrier High Power Outdoor Booster provides higher downlink EIRP to extend the coverage of existing sites. The booster is weather resistant, has an advanced thermal management system and is capable of operating under IP54 environmental extremes. It works at the frequency of 890-915MHz (uplink) and 935-960MHz (downlink) with the Max input power of 43dBm.
System Introduction Figure 2 Configuration of Outdoor Booster The system is composed of a downlink MCPA, duplexers, LNA, attenuator, bypass switch, control assembly, modem and power supply. Table 1 Outdoor Booster Components Item Components Downlink multi-carrier power amplifier 1 PCS Duplexer 2 PCS LNA (built-in the filters)
System Introduction Applications Coastlines and large lakes. Areas far from city center, such as remote countryside. Long and narrow districts, such as highway, railroad, sea-route. Rural areas, such as grassland and desert. Areas where macro-BTS is difficult to be built and coverage of micro-BTS is not enough, such as mountainous region, foothill, highland.
System Introduction Antenna Antenna ANT0 ANT1 TX/RX Multi-Carrier Outdoor Booster OUTDOOR BOOSTER BTS0 BTS1 TX/RX TX/RX Figure 3 System Configuration 1.5.1 Outline drawing Figure 4 shows the outline drawing of outdoor booster. Dimensions of outdoor booster are 210mm(8.25”) x 465mm(18.3”) x 866mm(34.1”) (H x W x D)
System Introduction Figure 4 Outline Drawing 1.5.2 Interface The interface of the outdoor booster is shown in Figure 5. Figure 5 Outdoor Booster Interface...
System Introduction Table 2 Outdoor Booster Interface Description Interface Description AC220V Input power interface for 220V AC BTS0 Connect to BTS main TX/RX port TX/RX BTS1 Connect to BTS diversity TX/RX port TX/RX ANT0 Connect to main antenna (TX/RX) TX/RX ANT1 Connect to diversity antenna (RX) ALARM...
System Installation 2 System Installation This chapter introduces the installation of multi-carrier outdoor booster Installation steps are as the following chart:: Installation Preparation Booster Installing and Cables Connection Installation Inspection System Testing & Debugging Installation Overview 2.1.1 Requirements on Installation Site The outdoor booster could be installed on the wall or floor, and it should be installed close to the antenna.
System Installation 2.1.3 Requirements on Illumination, Ventilation and Fire Protection The installation site should have enough illumination for installation and maintenance needs. Flammable and explosive material should not be near to the site. 2.1.4 Power requirements Nominal voltage: 220V AC. Variety range: 180-264 V AC, 47-63 Hz Single Phase. The power consumption of outdoor booster is about 1,300W.
System Installation Sufficient space for installation 2.2.2 Installation Caution The following high-altitude operation should be only performed by qualified personnel under well protection. 2.2.2.1 Installation on the Wall Step Operations Drill 4 holes (Ф10) as shown in Figure 6, Install 2 expansion bolts as shown in Figure 7. Mount the cabinet on the wall Figure 6 Distance of Wall Installing Holes Figure 7 Installing Inflatable Bolt...
System Installation 2.2.2.2 Installation on the Tower Step Operations Fix the tower mounted bracket with the booster as shown in Figure 8 Mount the cabinet on the tower Assemble the bracket and the tower with two long bolt Additional, fix the bracket with the tower by using steel belt as shown in Figure 9 Figure 8 Tower Mounting Figure 9 Steel Belt...
System Installation 2.2.2.3 Installation on the Floor Step Operations Drill 4 holes (Ф10) as shown in Figure 10 Install 2 expansion bolts as shown in Figure 7. Assemble the bracket and mount the cabinet on the bracket by using the M8*16 bolt. Mount the bracket on the floor.
System Installation Figure 12 Floor Installation Cable Installation 2.3.1 Installation of Power Cable and Grounding Cable 2.3.1.1 Installation Requirements Note The NEC(National Electrical Code) does not allow signal wires to share the same conduit with power wires unless the signal cable’s voltage range is equal to the power wire’s voltage range. Avoid bundling signal cable and grounding cable/power cable, keep them separate.
System Installation The installation of power cable and grounding cable is shown in Figure 13. The grounding cable should be green or yellow-green colored copper cable, with section larger than 4AWG(25mm and resistance lower than 0.5Ω. Figure 13 Installing Power Cable and Ground Cable The connection of power cable connector is shown as following figures.
System Installation Figure 16 Cable Installation Installation Inspection 2.4.1 Booster Inspection Item Description Stable and normal. Properly fastened to wall or floor. Screws and nuts screwed tightly, without missing flat washers and spring washers. Spring washers must be on the top of flat washers. No cable damage.
System Installation Item Description The cable shell not damaged. Grounding cable is connected properly. Cables are dressed neatly, power kept separate from signal. The minimum bending radius of the cable is proper. (Shouldn’t be less than twenty times of the cable’s diameter.) System Test Test the system after the device was installed and inspected.
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System Installation Test Start OME Statistic DT Test Statistic CQT Test Statistic Test Data Before Installation BTS Coverage Range Install and Adjust Booster OME Statistic DT Test Statistic CQT Test Statistic Test Data After Installation BTS Coverage Range System Optimize Compare The Test Data Best Effect? Test Process End...
Operation and Monitoring 3 Operation and Monitoring Live Display Software - ’HighPower’ HighPower is used to monitor & configure the Boosters’ operational parameters. HighPower includes two parts of functions: Device status monitoring Device parameter configuration HighPower supports Windows2000/XP operation system. Software Installation STEP1: Double click the setup.exe file;...
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Operation and Monitoring STEP3: Click ‘Next’ to begin the installation: STEP4: Click ‘Finish’ to complete the installation:...
Operation and Monitoring Ports Connection HighPower works through the COM serial port as shown below. The Booster ‘TEST’ port is connected to the computer’s COM serial port through the serial data transmission wire. Figure 18 Ports Connection...
Operation and Monitoring Software Operation 3.4.1 Start HighPower Go to “Start/Programs/HighPower/HighPower” and start the live status display software. 3.4.2 Ports Setting The default computer COM port is ‘COM1’. If it’s not ‘COM1’, please reset the COM port as following steps: ①...
Operation and Monitoring 3.4.3 Status Monitoring Run the ‘HighPower’ program after the connection is completed. The default monitoring window is for the device of Main Board shown as figure 19. Table 3 Menu Button Description Menu Button Description Link Connect to the booster Read Read the serial data from the booster Close...
Operation and Monitoring Table 4 Main Board Status Description Item Parameter Description System State OK/ALARM System State: OK/ALARM LNA1(mA) ** OK/ ALARM/ NULL LNA1: Working current **(mA), OK/ ALARM/ NULL LNA0(mA) ** OK/ ALARM/ NULL LNA0: Working current **(mA), OK/ ALARM/ NULL TMA1: Working current **(mA), OK/ ALARM/ NULL TMA1(mA) ** OK/ ALARM/ NULL...
Operation and Monitoring Figure 21 Power Amplifier Running Status Window Following are the description for the status items of the power amplifier(s). Table 5 Power Amplifier Status Description Item Parameter Description PA ADDR PA Address Link PA OK/ ALARM Link of PA state: OK/ ALARM PA State RUN/STOP PA State: RUN/STOP...
Maintenances and Managements 4 Maintenances and Managements This chapter describes the operation and maintenance of the outdoor booster. System Maintenance 4.1.1 Routine Maintenance The booster provides the following protection functions: LNA protection, overpower protection, VSWR protection and over-temp protection. When protection is triggered, the outdoor booster switches to by-pass mode and sends out alarm signal.
Maintenances and Managements Table 6 Specification of indicator light Item Label Color State Description Green Power amplifier works normally -Power amplifier indicator light Power amplifier failure LNA0/LNA1 Green Low noise amplifier works normally -Low noise amplifier indicator light Low noise amplifier failure Green Power supply works normally -Power indicator light...
Maintenances and Managements System Management 4.2.1 Alarm Range Setting The factory sets alarm range settings as follows: Table 8 Alarm Range Setting Item Indicator light Alarm Range Upper limit: 200mA LNA0/LNA1 Over current Down limit: 42mA Referential current: 100mA PA-POW Over power Power amplifier shut down power value: 52dBm(160 Watt) Over VSWR alarm and shut down: 5.0...
Maintenances and Managements Switches PA/LNA Gain 4.2.2.2 Gain Calculation Below descript the calculation of the gain of downlink PA and uplink LNA. Loss Outdoor booster : DownLink Gain:0~15dB down UpLink Gain:0~12dB Table 10 Symbol Description Item Symbol Description BTS output power Booster input power Loss Cable loss...
Maintenances and Managements formula: -Loss) = 51.7dBm-(P -Loss) down On the assumption that the output power of BTS is 20W (43dBm), the cable loss is 3dB, and then the proper gain setting is: -Loss) = 51.7dBm-(43dBm-3dB) = 11.7dB down To avoid the over-power alarms of the booster, set the gain 1dB low, so for the above example, the PA gain is set to10dB.
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Maintenances and Managements P1=43dBm Channel 1 Tx/Rx PA Gain Setting Loss=3dB Gdown=8dB Combiner BTS0 ANT0 Booster output power Outdoor Booster Channel 2 Tx/Rx Pout=51dBm P2=43dBm Loss=3dB BTS1 ANT1 TMA Gain Setting P2=43dBm Booster input power Channel 3 Tx/Rx Gup=8~12dB Pin=43dBm 4 channels combination: PA gain setting G =8dB down...
The above is a reference of booster gain setting when the BTS is upgraded. The general principle is to confirm the booster input power (P ). Please contact the technical support of Bravo Tech Inc., so as to make sure that the booster works normally after the BTS is upgraded.
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Maintenances and Managements Item Alarm indicator Specification Relevant Pins Notes TEMP Over temperature alarm Pin 5, Pin13 VSWR Over VSWR Pin 6, Pin14 +12 output Pin 7 Not an alarm Pin 15 Not an alarm...
Appendix 6 Appendix Terms/Acronyms/Abbreviation Definition Antenna American Wire Gauge Base Transceiver Station or Base Transceiver System C° Degree Celsius CDMA Code Division Multiple Access Serial Communication Port Call Quality Test Decibels Power measurement referenced to the specific power level of one watt Deutsches Insitut für Normung eV (German standards institution) 7-16 DIN German standards RF connector:...
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