Powerwave Technologies S21008 Masthead amplifier enhances performance of PCS, PC User Manual Installation and Operating Manual

Powerwave Technologies, Inc. Masthead amplifier enhances performance of PCS, PC Installation and Operating Manual

Installation and Operating Manual

INSTALLATION AND OPERATINGMANUAL98/OSM/0019ISSUE 113/04/99Airtech DCS1800 / PCS1900 Booster System Installation and Operating Manual Page 1 of 25DCS 1800 / PCS 1900 BOOSTER SYSTEMINSTALLATION AND OPERATING MANUALThe information contained in this document is furnished in commercial confidence and upon the condition that theindividual and corporate rights originating in the information, whether patented or not, will be respected.Reference; 98/OSM/0019 Issue: 1 Date: 13/04/99Prepared by:Mark BillsberryAuthorised by Engineering: Authorised by Quality:
INSTALLATION AND OPERATINGMANUAL98/OSM/0019ISSUE 113/04/99Airtech DCS1800 / PCS1900 Booster System Installation and Operating Manual Page 2 of 25HISTORYDATE ISSUE AUTHOR MOD/ISSUENOTE NOTES13/04/99 1 Mark Billsberry MI0167 Original Issue
INSTALLATION AND OPERATINGMANUAL98/OSM/0019ISSUE 113/04/99Airtech DCS1800 / PCS1900 Booster System Installation and Operating Manual Page 3 of 25CONTENTS1. INTRODUCTION 42. TECHNICAL DESCRIPTION OF BOOSTER SYSTEM EQUIPMENT 53. INTERFACE DETAILS 74. INSTALLATION OF THE BOOSTER SYSTEM 195. COMMISSIONING 24Figure 1 Interface Drawing for the Booster ..........................................................................7Figure 2 Interface Drawing for the Booster ..........................................................................8Figure 3 Interface Drawing for the Booster External Bias Tee...........................................10Figure 4 Interface Drawing for the Variable Gain G3 MHA..............................................11Figure 5 Interface Drawing for the Indoor Variable Gain MHA Bias Tee .........................13Figure 6 Interface Drawing for the Outdoor Variable Gain MHA Bias Tee ......................14Figure 7 Interface Drawing for the PDU with Wall Mounted Bracket...............................17Figure 8 Interface Drawing for the PDU with Pole Mounted Bracket................................18Figure 9 Booster System Connectivity ...............................................................................23
INSTALLATION AND OPERATINGMANUAL98/OSM/0019ISSUE 113/04/99Airtech DCS1800 / PCS1900 Booster System Installation and Operating Manual Page 4 of 251. IntroductionAirtech produce a range of masthead amplifier and associated equipment to provideenhancement of the performance of PCS, PCN, and GSM Base-stations (BTS ).The limitation of the BTS has traditionally been its sensitivity to the Uplink, or receivedsignal at the BTS. The antenna receives the signal from the mobile, but this can bedegraded by the feeder cable losses from the antenna down the mast to the BTS. TheAirtech Masthead Amplifier employs a low noise amplifier to transmit the improved signalstrength down to the BTS overcoming the signal degradation due to the feeder cablelosses.The result is a greater sensitivity of the receive system, providing better quality, greatercoverage and generally fewer dropped calls, as well as reducing the power required by themobile phone from any particular location which may increase the battery life and generaluser satisfaction with the network.The Airtech Booster is designed to increase the downlink signal level by placing the highpower amplifiers at the masthead reducing the feeder losses. This extends the range of thebase station further, reducing infrastructure costs or improving coverage in black spots.CAUTION:PRIOR TO WORKING ON OR INSTALLING THE BOOSTER SYSTEM ORANY OF ITS COMPONENTS, ENSURE THAT THE BTS TRANSMITTER RFOUTPUT IS TURNED OFF AND THAT PRECAUTIONS ARE TAKEN TOENSURE THAT THE TRANSMITTER CANNOT BE ACTIVATED DURINGTHE EQUIPMENT INSTALLATION.THERE ARE NO USER SERVICABLE COMPONENTS INSIDE THEBOOSTER. RETURN THE UNIT TO THE FACTORY IF SERVICE OR REPAIRIS REQUIRED.
INSTALLATION AND OPERATINGMANUAL98/OSM/0019ISSUE 113/04/99Airtech DCS1800 / PCS1900 Booster System Installation and Operating Manual Page 5 of 252. Technical Description of Booster System EquipmentThe booster system consists of the following units:• Booster• Booster Bias Tee• Variable Gain G3 Masthead Amplifier (Optional)• Variable Gain Masthead Amplifier Compatible Bias Tee (Optional)• Booster System Power Distribution Unit• Connecting Cables2.1 BoosterThe Booster is designed for masthead operation. It includes a variable gain transmit highpower amplifier and a variable high gain LNA. The gain settings are controlled by a micro-controller via a serial data link with the Power Distribution Unit.The Booster is designed to interface with duplexing feeds to both the antenna and the BaseStation. The RF, DC power (+30V ) and serial data link are all fed to the booster throughthe RF coaxial feeder cable.The Booster is housed in a weatherproofed enclosure rated to IP68, with a 7/16 RFconnector for the ANT at the top and a 7/16 RF connector for the BTS at the base. Thereis also a grounding stud mounted on the base used for grounding the Booster to the mast,and provides the discharge path for the lightning protection circuit.2.2 Booster Bias TeeThe Booster Bias Tee performs four functions within the booster system. A straightthrough path is provided for RF signals, the DC power from the PDU is injected onto thefeeder and the serial communications to/from the booster is taken from the feeder andsupplied to the PDU. The Bias Tee also provides lightning protection for the BTS andPDU.2.3 Variable Gain G3 Masthead AmplifierThe Airtech Variable Gain G3 MHA M-series single feeder is designed to deliver up to22dB Rx gain, low Tx loss and low Rx noise figure in a compact low volume and lightweight IP68 enclosure. The MHA-M series single feeder is designed to interface withduplexing feeds to both the antenna and the Base Station.The MHA is housed in a weatherproofed enclosure, with a 7/16 RF connector for the ANTat the top and a 7/16 RF connector for the BTS at the base. There is also a grounding studmounted on the base used for grounding the MHA to the mast, and provides the dischargepath for the lightning protection circuit of the MHA.The Variable Gain G3 unit requires a +12V supply from the power distribution unit (PDU)at the base station. This is supplied to the G3 MHA via the RF coaxial feeder cable.
INSTALLATION AND OPERATINGMANUAL98/OSM/0019ISSUE 113/04/99Airtech DCS1800 / PCS1900 Booster System Installation and Operating Manual Page 6 of 252.4 Variable Gain G3 MHA Bias TeeThe Variable Gain G3 MHA Bias Tee performs the same functions as the Booster bias teealthough it is not capable of handling the current requirements of the booster. The VariableGain G3 MHA Bias Tee uses one connector for both the DC power and the serialcommunications. A standard G3 Bias Tee should not be used in conjunction with theVariable Gain G3 MHA since it will block the serial communication interface with thePDU.2.5 Power Distribution UnitThe Power Distribution Unit (PDU) converts the input supply to the +30V DC for theBoosters and the +12V DC for the MHAs. The PDU also generates an internal +5V DCsupply used to drive the control and status panel integrated into the PDU. The PDU cansupply, control and display the status of three boosters and six Variable Gain G3 MHAs.The PDU reports the status of up to three Boosters and six Masthead Amplifiers and canalso set the Tx and Rx gains for each sector independently. The Booster PDU is onlydesigned to be used in conjunction with the Variable Gain G3 MHA.It is important to ensure that the base station supply is within the voltage limits required bythe Booster PDU and that it is capable of providing the power. The power requirementscan be calculated using the table below.Supply Voltage LimitsAC Input Option 85 Vrms to 264Vrms - 47Hz to 63HzDC Input Option -36V to -72VPower Supply Requirements AC Option DC OptionPer Booster 300W 250WPer Masthead Amplifier 5W 5W2.6 CablesThe following three cables are required in order to connect the booster system:PDU to BTS -48V DC supply ( DC input PDU only )PDU to Booster Bias Tee DC supplyPDU to Booster Bias Tee ( Serial Data )PDU to MHA Bias TeeIn addition to these supplied cables, a number of RF jumper cables will be required toconnect the booster to the antenna and BTS to the Bias Tee.
INSTALLATION AND OPERATINGMANUAL98/OSM/0019ISSUE 113/04/99Airtech DCS1800 / PCS1900 Booster System Installation and Operating Manual Page 7 of 253. Interface Details3.1 BoosterThe Booster is provided with the following electrical interfaces:7/16 DIN Female (BTS) on the base. This is the connection for the duplexed Tx/Rxsignals to/from the BTS. As well as providing for RF transmission, this connector alsoprovides for DC feed and the communication interface via the RF cable and Bias Teeassembly.7/16 DIN Female (ANT) on the top. This is the connection for the Tx/Rx Antenna. Thisport should be as close as possible to the antenna with the shortest/lowest lossinterconnecting cable practicable.M8 Ground Stud on the base. This provides the Primary Lightning protection ground tothe Booster. The ground cable should be of the largest cross sectional area, shortest lengthpracticable and be connected to a suitable grounding point on the mast structure.Figure 1 Interface Drawing for the Booster
INSTALLATION AND OPERATINGMANUAL98/OSM/0019ISSUE 113/04/99Airtech DCS1800 / PCS1900 Booster System Installation and Operating Manual Page 8 of 25Figure 2 Interface Drawing for the Booster3.2 Booster Bias TeeThe Booster Bias Tee is provided with the following electrical interfaces.7/16 DIN Female (Antenna Port). This is the connection for RF feeder up the mast to theBooster and Antenna. As well as providing for the RF receive and transmit signal, thisconnector also provides for DC feed and the communication interface via the centre pin ofthe 7/16” connector. It is labelled ANT.7/16 DIN Male (BTS Port). This is the connection for RF jumper from the Base-stationTransceiver. It is labelled BTS.
INSTALLATION AND OPERATINGMANUAL98/OSM/0019ISSUE 113/04/99Airtech DCS1800 / PCS1900 Booster System Installation and Operating Manual Page 9 of 25SMA Female. This is the connector for the serial communications interface from theAirtech Booster System PDU. It is labelled COMMS.MIL 5015 10SL4-PSN DC Power Connector. This is the connector for the DC power inputfrom the Airtech Booster System PDU via a cable supplied by Airtech. The B pin on theconnector has the 30VDC supply. It is labelled DC.M6 Ground Stud. This provides the Primary Lightning protection ground to the Bias Tee.The ground cable should be of the largest cross sectional area, shortest length practicableand be connected to a suitable grounding point. Failure to connect this to an adequateGround may result in damage to the Booster System components in the event of highEMFs being generated in the RF Feeder line during lightning strikes.The specification of the sex and type of the RF connectors can be altered by specialrequest. Please contact Airtech for further details if this is required.3.3 Variable Gain G3 Masthead AmplifierThe MHA is provided with the following electrical interfaces:7/16 DIN Female (BTS) on the base. This is the connection for the duplexed Tx/Rxsignals to/from the BTS. As well as providing for RF transmission, this connector alsoprovides for DC feed and the communication interface via the RF cable and Bias Teeassembly.7/16 DIN Female (ANT) on the top. This is the connection for the Tx/Rx Antenna. Thisport should be as close as possible to the antenna with the shortest/lowest lossinterconnecting cable practicable.M8 Ground Stud on the base. This provides the Primary Lightning protection ground tothe MHA. The ground cable should be of the largest cross sectional area, shortest lengthpracticable and be connected to a suitable grounding point on the mast structure.
INSTALLATION AND OPERATINGMANUAL98/OSM/0019ISSUE 113/04/99Airtech DCS1800 / PCS1900 Booster System Installation and Operating Manual Page 10 of 25Interface DrawingConnector OptionsFigure 3 Interface Drawing for the Booster External Bias Tee
INSTALLATION AND OPERATINGMANUAL98/OSM/0019ISSUE 113/04/99Airtech DCS1800 / PCS1900 Booster System Installation and Operating Manual Page 11 of 25Figure 4 Interface Drawing for the Variable Gain G3 MHA
INSTALLATION AND OPERATINGMANUAL98/OSM/0019ISSUE 113/04/99Airtech DCS1800 / PCS1900 Booster System Installation and Operating Manual Page 12 of 253.4 Variable Gain G3 Bias TeeThe Bias Tee is provided with the following electrical interfaces:7/16 DIN Female (Antenna Port). This is the connection for RF feeder up the mast to theMHA and antenna. As well as providing for the RF receive and transmit signal, thisconnector also provides for DC feed and the communication interface via the centre pin ofthe 7/16” connector. It is labelled MHA.7/16 DIN Male (BTS Port). This is the connection for RF jumper from the BTS. It islabelled BTS.SMA DC Power Connector. This is the connector for the DC power input from theAirtech PDU via a cable supplied by Airtech. This connector has the MHA supply andcommunications interface on the centre pin of this co-axial connector.M6 Ground Stud. This provides the Primary Lightning protection ground to the Bias Tee.The ground cable should be of the largest cross sectional area, shortest length practicableand be connected to a suitable grounding point. Failure to connect this to an adequateGround may result in damage to the Bias Tee in the event of high EMFs being generated inthe RF Feeder line during lightning strikes.The specification of the sex and type of the RF and DC connectors can be altered byspecial request. Please contact Airtech for further details if this is required.
INSTALLATION AND OPERATINGMANUAL98/OSM/0019ISSUE 113/04/99Airtech DCS1800 / PCS1900 Booster System Installation and Operating Manual Page 13 of 25Figure 5 Interface Drawing for the Indoor Variable Gain MHA Bias Tee
INSTALLATION AND OPERATINGMANUAL98/OSM/0019ISSUE 113/04/99Airtech DCS1800 / PCS1900 Booster System Installation and Operating Manual Page 14 of 25Figure 6 Interface Drawing for the Outdoor Variable Gain MHA Bias Tee
INSTALLATION AND OPERATINGMANUAL98/OSM/0019ISSUE 113/04/99Airtech DCS1800 / PCS1900 Booster System Installation and Operating Manual Page 15 of 253.5 Power Distribution UnitThe Booster Power Distribution Unit is provided with the following electrical interfaces:3.5.1 Supply Input Connector3.5.1.1 AC Input Option.Connector block for single phase mains.Colour ConnectionBLUE NeutralBROWN LiveYELOW/GREEN Earth3.5.1.2 DC Input Option.This MIL_C_5015 20-19P input connector is used to supply the -48V DC required by thePDU.Pin ConnectionA No ConnectionB0VC -48V3.5.2 PDU to Bias Tee ConnectorsMIL-C-5015 16-11S booster power connectors. This connector supplies the +30V to thebooster through the Bias Tee.Pin ConnectionA +30VB No ConnectionC0VThe TNC female booster communications connectors provides the serial communicationinterface to the booster through the booster bias tee.The TNC female MHA connector provides the +12V supply and the serial communicationinterface to the variable gain G3 through the bias tee.3.5.3 Alarm Output ConnectorThe weatherproof 9-Way D-Type plug provides the booster system summary alarminterface to the BTS. There are two options for the alarm interface:Option 1. TTL Logic High = Operational Logic Low = FaultOption 2. Relay Contacts Closed = Operational Open = Fault
INSTALLATION AND OPERATINGMANUAL98/OSM/0019ISSUE 113/04/99Airtech DCS1800 / PCS1900 Booster System Installation and Operating Manual Page 16 of 25Pin Colour TTL Option Relay Option1 Brown Sector 1 Booster Sector 1 Booster2 Red Sector 2 Booster Sector 2 Booster3 Orange Sector 3 Booster Sector 3 Booster4 Yellow M-MHAs M-MHAs5 Green D-MHAs D-MHAs6 Blue Summary Summary7 Violet not used not used8 Grey not used not used9 White 0V Common
INSTALLATION AND OPERATINGMANUAL98/OSM/0019ISSUE 113/04/99Airtech DCS1800 / PCS1900 Booster System Installation and Operating Manual Page 17 of 253.5.4 M8 Ground StudThis provides the Primary Lightning protection ground to the Power Distribution Unit. Theground cable should be of the largest cross sectional area, shortest length practicable andbe connected to a suitable grounding point on the BTS Ground loop. Failure to connectthis to an adequate Ground may result in damage to the PDU in the event of high EMFsbeing generated in the supply cables during a lightning strike.Figure 7 Interface Drawing for the PDU with Wall Mounted Bracket
INSTALLATION AND OPERATINGMANUAL98/OSM/0019ISSUE 113/04/99Airtech DCS1800 / PCS1900 Booster System Installation and Operating Manual Page 18 of 25Figure 8 Interface Drawing for the PDU with Pole Mounted Bracket
INSTALLATION AND OPERATINGMANUAL98/OSM/0019ISSUE 113/04/99Airtech DCS1800 / PCS1900 Booster System Installation and Operating Manual Page 19 of 254. Installation of the Booster SystemThe Booster System connectivity for three sector configuration is shown in Figure 9. Eachsector consists of one Booster for main transmit and receive signals and one MastheadAmplifier for diversity receive signal. The diversity MHA shown in the diagram is astandard variable high gain dual duplexed MHA. The transmit section of the MHA whenused in the diversity path is not used. Some systems may have two diversity MHAs foreach sector (total of six for a three sector site). The PDU shown in the diagram has acapability of providing power to three Boosters and six MHAs although connections toonly three MHAs are shown in the diagram.CAUTION:PRIOR TO INSTALLING THE BOOSTER SYSTEM ORANY OF ITS COMPONENTS, ENSURE THAT THE BTSTRANSMITTER OUTPUT IS TURNED OFF AND THATPRECAUTIONS ARE TAKEN TO ENSURE THAT THETRANSMITTER CANNOT BE ACTIVATED DURING THEEQUIPMENT INSTALLATION.4.1 BoosterPrior to installing the booster assembly ensure that there is sufficient space available forthe mounting of the equipment to the mast pole or to the wall structure. This clearanceshould include access for cable bend radius and termination of the feeder.The booster is attached to the antenna pole by the use of two jaw clamp assemblies whichare fitted to the upper and lower mounting brackets.The booster must be fitted vertically with the BTS feeder connector to the underside of theequipment and the antenna port at the top. Only this arrangement will provide the correctconvection cooling required by the design.Connect the booster Ground stud to the antenna Ground arrangement using a cable of atleast 24 mm2 cross-sectional area. The booster is connected to the cable using a 8 mmgrounding stud. Ensure that the torque applied to the booster ground stud nut does notexceed 10 Nm.Connect the BTS feeder jumper cable from the main feeder to the BTS port at the lowerend of the booster and the Antenna jumper cable to the upper end of the booster. Ensurethat the connectors are correctly mated then tighten the connector to 20 - 25 Nm using atorque spanner. Ensure that the bend radii of the cable is not placing sideways stress on thecable or connectors.
INSTALLATION AND OPERATINGMANUAL98/OSM/0019ISSUE 113/04/99Airtech DCS1800 / PCS1900 Booster System Installation and Operating Manual Page 20 of 25DO NOT CONNECT THE RF FEEDER CABLE FROM THE BTSDIRECTLY TO THE BOOSTER. ALWAYS USE A JUMPER TOPREVENT SIDELOADS ON THE CONNECTORS.Once the connectors are correctly tightened onto to the Booster both of the cable portsshould be sealed using the heat-shrink sleeves.Ensure that any excess cable is securely attached to the mast to prevent movement.4.2 Booster Bias TeeEnsure the BTS is turned off and all transmitters inhibited. Remove the antenna feedercables from the existing antenna output connectors (on top of the BTS cabinet) ensuringthat each cable assembly is identified with its mating location. Note: loosen the cablesupport clamps where necessary to provide movement of cablesAttach a Booster Bias Tee assembly to each of the antenna outputs on the top of the BTScabinet and tighten each connector to 20 - 25 Nm using a torque spanner, whilst ensuring acounter torque is applied to the connector body.Connect each Bias Tee Ground stud to the cabinet primary Ground using a short length of10 mm2 earth cable. This should be terminated in an M6 tag for connection to the Bias Teeassembly, ensuring that the Ground stud nut is tightened to not greater than 4 Nm.The external antenna feeder cables should be re-connected to the Booster Bias Tees,ensuring that each antenna is connected to its original BTS output port, and tightened to 20- 25 Nm torque, whilst ensuring a counter torque is applied to the connector body.Retighten the cable support clamps where necessary to secure the cables4.3 Masthead AmplifierPrior to installing the MHA assembly ensure that there is sufficient space available for themounting of the equipment to the mast pole or to the wall structure. This clearance shouldinclude access for cable bend radius and termination of the feeder.The MHA is attached to the antenna pole by the use of the two adjustable strap assemblieswhich are fitted to the upper and lower mounting brackets. Thread each of the strapassemblies through the two slots provided in the mounting brackets. Wrap the strapsaround the mounting pole and locate into the worm drive screw assembly. The two screwassemblies should then be adjusted using a 8 mm open ended spanner or socket assembly,ensuring that the torque applied to the screw does not exceed 2 Nm.The MHA should be fitted vertically with the BTS feeder connector to the underside of theequipment and the antenna port at the top.
INSTALLATION AND OPERATINGMANUAL98/OSM/0019ISSUE 113/04/99Airtech DCS1800 / PCS1900 Booster System Installation and Operating Manual Page 21 of 25Connect the MHA Ground stud to the antenna Ground arrangement using a cable of atleast 24 mm2 cross-sectional area. The MHA is connected to the cable using a 8 mmgrounding stud. Ensure that the torque applied to the MHA ground stud nut does notexceed 10 Nm.Connect the jumper from the output connector of the antenna to the port labeled ANT onthe top of the MHA. Ensure that the connectors are correctly mated then tighten theconnector to 20 - 25 Nm using a torque spanner. Ensure that the bend radii of the cable isnot placing sideways stress on the cable or connectors.Connect the BTS feeder jumper cable from the main feeder to the BTS port at the lowerend of the MHA. Ensure that the connectors are correctly mated then tighten the connectorto 20 - 25 Nm using a torque spanner. Ensure that the bend radii of the cable is not placingsideways stress on the cable or connectors.DO NOT CONNECT THE RF FEEDER CABLE FROM THE BTSDIRECTLY TO THE MHA. ALWAYS USE A JUMPER TOPREVENT SIDELOADS ON THE CONNECTORS.Once the connectors are correctly tightened onto to the MHA both of the cable portsshould be sealed using the heat-shrink sleeves.Ensure that any excess cable is securely attached to the mast to prevent movement.4.4 G3 MHA Bias TeeEnsure the BTS is turned off and all transmitters inhibited. Remove the antenna feedercables from the existing antenna output connectors (on top of the BTS cabinet) ensuringthat each cable assembly is identified with its mating location. Note: loosen the cablesupport clamps where necessary to provide movement of cablesAttach a Variable Gain MHA Bias Tee assembly to each of the antenna outputs on the topof the BTS cabinet and tighten each connector to 20 - 25 Nm using a torque spanner,whilst ensuring a counter torque is applied to the connector body.Connect each Bias Tee Ground stud to the cabinet primary Ground using a short length of10 mm2 earth cable. This should be terminated in an M6 tag for connection to the Bias Teeassembly, ensuring that the Ground stud nut is tightened to not greater than 4 Nm.The external antenna feeder cables should be re-connected to the Bias Tees, ensuring thateach antenna is connected to its original BTS output port, and tightened to 20 - 25 Nmtorque, whilst ensuring a counter torque is applied to the connector body. Retighten thecable support clamps where necessary to secure the cables
INSTALLATION AND OPERATINGMANUAL98/OSM/0019ISSUE 113/04/99Airtech DCS1800 / PCS1900 Booster System Installation and Operating Manual Page 22 of 254.5 Power Distribution UnitLocate a suitable position for the installation of the PDU. Ensure that there is adequate airflow around the heatsink.Install the PDU using the supplied brackets mounting the unit vertically with theconnectors at the bottom.Connect the PDU Ground stud to the primary Ground using a short length of 10 mm2 earthcable. This should be terminated in an M8 tag for connection to the PDU assembly,ensuring that the Ground stud nut is tightened to not greater than 10 Nm.4.6 Electrical Installation1. Ensure that the PDU circuit supply breaker is turned off at the distribution board.Connect the PDU input cable from the distribution board to the PDU supply input.Ensure that the connector is securely mated.2. Connect the Booster DC Output cables between the PDU and the Booster Bias Tee.3. Fit the Booster Communication cables between the PDU and the Booster Bias Tee.4. Fit the MHA Cables between the PDU and the Variable Gain G3 compatible Bias Tee.5. Connect the Alarm cable if required.Note: Only use cable assemblies supplies by Airtech.
INSTALLATION AND OPERATINGMANUAL98/OSM/0019ISSUE 113/04/99Airtech DCS1800 / PCS1900 Booster System Installation and Operating Manual Page 23 of 25Figure 9 Booster System Connectivity85 - 264VACTx/Rx RxSFSABOOSTERTx/Rx RxBTBTBTBTRF RF RF RFTx/Rx RxBTBTRF RFSFSABOOSTERMHA(High Gain)SFSABOOSTERBOOSTERPDUMHA(High Gain)BTSMAIN DIVERSITY MAIN DIVERSITY MAIN DIVERSITY+30VDCCOMMS+12VDCandCOMMSMHA(High Gain)BOOSTER SYSTEM CONNECTIVITY
INSTALLATION AND OPERATINGMANUAL98/OSM/0019ISSUE 113/04/99Airtech DCS1800 / PCS1900 Booster System Installation and Operating Manual Page 24 of 255. Commissioning5.1 Switch OnEnsure that the circuit breakers inside the Booster PDU are in the open position. Ensurethat the BTS transmitter output is turned off. Enable the supply to the PDU at the BBUdistribution board.Enable the sector 1 circuit breaker within the Booster PDU. All the status LEDs for theinstalled equipment on sector 1 should be green. If this is not the case check thateverything has been connected properly. If there are no obvious causes contact Airtech fortechnical support.Enable sector 2 and sector 3. Ensure that all the appropriate LEDs are green.5.2 StatusLEDLabel Description ConditionsCOMMs Booster communication link Green = GoodCOMMs Red = FailPOWER PDU Power Green = GoodRed = FailVSWR Booster Output VSWR Green = GoodRed = FailOff = Booster Comms Failure/Booster not fittedCURRENT Booster under current Green = GoodRed = FailOff = Booster Comms Failure/Booster not fittedVOLTAGE Booster under voltage Green = GoodRed = FailOff = Booster Comms Failure/Booster not fittedNOT USEDHPA TEMP Booster HPA Over Temperature Green = GoodRed = FailOff = Booster Comms Failure/Booster not fittedM-MHASOFT FAIL M-MHA soft fail Green = GoodRed = FailOff = M-MHA Comms Failure/MHA not fittedM-MHAHARD FAIL M-MHA hard fail Green = GoodRed = FailOff = M-MHA Comms Failure/MHA not fittedD-MHASOFT FAIL D-MHA soft fail Green = GoodRed = FailOff = D-MHA Comms Failure/MHA not fittedD-MHAHARD FAIL D-MHA hard fail Green = GoodRed = FailOff = D-MHA Comms Failure/MHA not fitted
INSTALLATION AND OPERATINGMANUAL98/OSM/0019ISSUE 113/04/99Airtech DCS1800 / PCS1900 Booster System Installation and Operating Manual Page 25 of 255.3 Attenuator SettingsThe HPA attenuator switch sets the transmit gain. The gain will be a maximum 12dB atthe “0” switch setting. The switches cover an attenuation range of 16dB ( 0 to F inhexadecimal ) in 1dB steps.The LNA attenuator sets the receive gain in the booster and the MHAs with a maximum of22dB at the “0” switch setting. The switches cover an attenuation range of 16dB ( 0 to F inhexadecimal ) in 1dB steps.The voltage adjust switch is no longer required and has been disabled.The transmit amplifier provides a maximum RF output power level of 20 watts (+43dBm)and a nominal maximum gain of 12dB. It is essential that the gain of the booster isadjusted to ensure that the output power does not exceed this level. The followingprocedure may be used to this end.1. Set the booster transmit attenuation to 15dB by setting the rotary switch on the controlpanel to F.2. Enable the BTS Tx carrier output at the required operating power level.3. Whilst monitoring the booster output power using a suitable power meter graduallydecrease the Tx attenuation until the booster output power reaches the required level(not exceeding 20W).The booster system is now ready for performance testing.

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