AeroComm 504830225 Booster Amplifier User Manual MANUAL

Aerocomm Inc Booster Amplifier MANUAL

Contents

MANUAL

19516 Amaranth DriveGermantown, MD 20874Phone 301-540-0700Fax 301-540-5743PROGRAMMABLE BI-DIRECTIONALBOOSTER AMPLIFIERPBBAOPERATIONINSTRUCTION MANUALMODEL 50289-RBA-800MHzALL INFORMATION CONTAINED IN THIS DOCUMENT IS PROPRIETARY TO AEROCOMM,AND SHALL NOT BE RELEASED, DISCLOSED OR DUPLICATED FOR ANY PURPOSEOTHER THAN EVALUATION, INSPECTION, OR MAINTENANCE OF EQUIPMENTDELINEATED HEREIN.AEROCOMM IS NOT RESPONSIBLE FOR ANY EQUIPMENT REPAIRED OR ALTERED BYPERSONS NOT AUTHORIZED BY AEROCOMM, OR NOT IN ACCORDANCE WITHINSTRUCTIONS FURNISHED BY AEROCOMM. AEROCOMM IS NOT RESPONSIBLE FOREQUIPMENT RENDERED DEFECTIVE AS A RESULT OF MISUSE, IMPROPER REPAIR, ORABNORMAL CONDITIONS OF OPERATION, NOR DOES AEROCOMM ASSUME ANYLIABILITY FOR ANY CONSEQUENTIAL DAMAGE CAUSED BY SUCH EQUIPMENT.SERVICE CONTRACTS OR CUSTOMER ASSISTANCE AGREEMENTS ARE AVAILABLEFOR AEROCOMM PRODUCTS THAT REQUIRE MAINTENANCE AND/OR REPAIR.AEROCOMM ALSO HAS AVAILABLE SERVICE AND CONSULTATION CONTRACTS FORENTIRE SYSTEMS CONFIGURATIONS.
ACI-OIM-0001 RELEASED ER # AC—0010 9/16/99 2PROGRAMMABLE BI-DIRECTIONAL BOOSTER AMPLIFIERPBBAMODEL 50289-RBA-800MHzP/N 50483-02-25
ACI-OIM-0001 RELEASED ER # AC—0010 9/16/99 3TABLE OF CONTENTSI. INTRODUCTION.................................................................................................................................4PURPOSE OF MANUAL: .........................................................................................................................4GENERAL SYSTEM OVERVIEW:..........................................................................................................5PROGRAMMABLE BI-DIRECTIONAL BOOSTER AMPLIFIER OVERVIEW:..................................6II. SPECIFICATIONS...............................................................................................................................8GENERAL SPECIFICATIONS: ................................................................................................................8PROGRAMMABLE BI-DIRECTIONAL BOOSTER AMPLIFIER.......................................................... 8SUB-ASSEMBLY SPECIFICATIONS: ....................................................................................................9ATTENUATOR AMP MODULE #1 & #2............................................................................................... 9ATTENUATOR AMP MODULE #3........................................................................................................9MMIC #1............................................................................................................................................... 10MMIC #2............................................................................................................................................... 10III. INSTALLATION............................................................................................................................11IV. EQUIPMENT INITIALIZATION...............................................................................................12V. MAINTENANCE SCHEDULE........................................................................................................13VI. THEORY OF OPERATION.........................................................................................................14VII. TROUBLESHOOTING ................................................................................................................15III. SCHEMATICS................................................................................................................................16ASSEMBLY DRAWINGS, PARTS LISTS..............................................................................................16PROGRAMMABLE BI-DIRECTIONAL BOOSTER AMP ................................................................... 17ATTENUATOR/AMPLIFIER MODULE #1 & #2..................................................................................18ATTENUATOR/AMPLIFIER MODULE #3........................................................................................... 19MMIC AMPLIFIER #1 ............................................................................................................................ 20MMIC AMPLIFIER #2 ............................................................................................................................ 21RBA BPF MODULE................................................................................................................................ 22IX. PERTINENT DOCUMENTATION.............................................................................................23X. RECOMMENDED SPARES ............................................................................................................ 24
ACI-OIM-0001 RELEASED ER # AC—0010 9/16/99 4I. INTRODUCTIONPURPOSE OF MANUAL:The purpose of this manual is to outline the installation, describe the operation,and assist in the maintenance and trouble-shooting of the Programmable Bi-directionalBooster Amplifier (PBBA), Model 50289-RBA-800MHz.MANUAL OUTLINE:Section II: Section II covers the general specifications of the PBBA. Thissection outlines the general, mechanical and electrical specifications including themodule specifications (sub-assemblies).Section III: Section III covers the instructions for installing the PBBA.Section IV: Section IV covers equipment initialization.Section V: Section V is the recommended schedule of periodic maintenanceof the PBBA.Section VI: Section VI covers the general “Theory of Operation” of the logicand RF modules of a PBBA. This section is designed to aid in the understanding of thePBBA.Section VII: Section VII consists of diagrams, tables and procedures to assistin the troubleshooting of a PBBA. This section is designed to guide a technician inlocating system fault(s) to the module. Included in the section is a list of recommendedtest equipment.Section VIII: Section VIII consists of the schematics, assembly drawings, andparts lists of the PBBA and its sub assemblies.Section IX: Section IX consists of pertinent documents and supplementalequipment manuals.Section X: Section X lists the recommended spares for the PBBA.
ACI-OIM-0001 RELEASED ER # AC—0010 9/16/99 5GENERAL SYSTEM OVERVIEW:(refer to drawing 50483-01-19)In an off-the-air to radiating cable system, signals received from the air arerebroadcast onto the cable. Signals received on the cable are rebroadcast over the air,e.g., talk-in, talk-out.In general, the forward channel, talk-out signals are generated from lower powersources, e.g., handheld transceivers.In an off-the-air to radiating cable multiple Channel Booster application, thePBBA is utilized to enhance the performance of the talk-out in long cable systems.
ACI-OIM-0001 RELEASED ER # AC—0010 9/16/99 6PROGRAMMABLE BI-DIRECTIONAL BOOSTER AMPLIFIER OVERVIEW:(refer to figure 1)The Programmable Bi-directional Booster Amplifier (PBBA) is a software-driven user-configurable unit for use in a multi-carrier low signal-levelenvironment. It is capable of eight (8) carriers and a composite power of –20dBm.The forward channel covers 100 to 2000MHz and within this band abandpass filter defined window called the In-Band has a user settable gain. Thefactory default setting is 20dB. The Out-of-Band gain is also user settable andthe factory default setting is 0dB. The reverse channel covers 100 to 2000MHzand has a user settable gain (see specifications for min/max gain/loss setting forthe forward and reverse channels.) Each channel uses a broadbandattenuator/amplifier module in which the attenuation is digitally set via computerinterface.There are two (2) parallel amplifiers in the forward channel. One of theforward channels called In-Band has a high gain amplifier chain and a band passfilter to boost a specific window of frequencies within the 100 to 2000MHzfrequency of operation.Its small package and light weight allows the user to conveniently installthe unit. Indicator lights allow the user to determine the status of the unit from adistance. User-friendly software enhances the unit’s performance and userinterface.
ACI-OIM-0001 RELEASED ER # AC—0010 9/16/99 7PROGRAMMABLE BI-DIRECTIONAL BOOSTER AMPLIFIERPBBAMODEL 50289-RBA-800MHzP/N 50483-02-25FIGURE 1
ACI-OIM-0001 RELEASED ER # AC—0010 9/16/99 8II. SPECIFICATIONSGENERAL SPECIFICATIONS:PROGRAMMABLE BI-DIRECTIONAL BOOSTER AMPLIFIERP/N 50483-02-25MODEL # 50289-RBA-800 MHzSPECIFICATIONS DEFAULT NOMINAL ADJUSTMENTRANGEForward Channel: Talk-Out (Outbound)Reverse Channel: Talk-In (Inbound)Forward Freq. Range (Out-of-Band): 100 to 819/826 to 2000 MHzForward Freq. Range (In-Band): 821 to 824 MHzForward GAIN Range (Out-of-Band): 20 ± 2dB 11 to 26Forward GAIN Range (In-Band): 0 ± 2dBReverse gain 100 to 2000 MHz: -1dB ± 1dBRF Power out, 1 carrier, 1 dBcompression: +17dBmMax Power input 8 tone no damage: -12dBm/carrierMax Power input: -20dBmAmp Flatness: +0, -2dBIntermodulation Distortion: -50dBcSecond Harmonic Output: -40dBcSpurious Outputs: -80dBcNoise Figures: <20dBInput/Output VSWR: 1.3:1Power Requirement: 120VACInput/Output Connector: Type NAC Power Input: ¾” ConduitComm. Port: DB9FHousing (Enclosure) Type: NEMA 4xEnclosure Size: 14”x12”x6” (LxWxD)Operation Temp.: -30 to +60ºCFCC type acceptance
ACI-OIM-0001 RELEASED ER # AC—0010 9/16/99 9SUB-ASSEMBLY SPECIFICATIONS:ATTENUATOR AMP MODULE #1 & #2P/N 50483-02-26-01MODEL #SPECIFICATIONSFrequency Range: 100 – 2000 MHzAttenuation: 0dB min, -15db maxGain @ 0dB attenuation: 18dB min, 20 dB maxFlatness: +1dBPower: 12VDC @ 19mADCI/O Connection: SMA femaleZin/Zout: 50 ohmATTENUATOR AMP MODULE #3P/N 50483-02-26-01MODEL #SPECIFICATIONSFrequency Range: 819 – 826 MHzAttenuation: 0dB min, -15db maxGain @ 0dB attenuation: 18dB min, 20 dB maxFlatness: +1dBPower: 12VDC @ 19mADCIsolation: 20dB minI/O Connection: SMA female
ACI-OIM-0001 RELEASED ER # AC—0010 9/16/99 10MMIC #1P/N 50483-02-27MODEL #SPECIFICATIONSFrequency Range: 100 - 2000 MHzGain: 10dB typicalGain Flatness: <+1dBPower: 12VDC @ 85mAI/O Connection: SMA femaleZin/Zout: 50 ohmMMIC #2P/N 50483-02-30MODEL #SPECIFICATIONSFrequency Range: 819 – 826 MHzGain: 20dB typicalGain Flatness: +0.1dBPower: 12VDC @ 120mAI/O Connection: SMA femaleZin/Zout: 50 ohm
ACI-OIM-0001 RELEASED ER # AC—0010 9/16/99 11III. INSTALLATIONThe Programmable Bi-Directional Booster Amplifier is housed in a steelNEMA 4 enclosure. The enclosure has four mounting tabs on its rear surface(refer to drawing 50483-05-17). In selecting a mounting surface, the size andweight of the unit must be considered.The RF cables to the radiators (distribution system) are connected tofemale N-connectors on the bottom of the enclosure. Special care should betaken in the dress and separation of these cables to prevent signal couplingbetween the input and output of the PBBA.The PBBA requires a 110VAC power source. It is recommended, tomaintain the integrity of the NEMA enclosure, that the AC power should enterusing conduit or a connector. A cutout for a ¾” conduit connector is provided atthe bottom of the enclosure.Connect the unit as follows:RF CABLE CONNECTIONS (refer to drawing 50483-01-18):1) Talk Out: to radiating cable run to 8-Channel Booster Amplifier.2) Power: to AC conduit see also figure XX.3) Com Port: for calibration only - no connection required at installation.4) Talk In: to radiating cable run to end of tunnel.AC POWER INTERCONNECT (refer to drawing 50483-01-15):The AC power signals are connected to an internal terminal block. Theterminal block is located on the lower plate assembly at the center of the loweredge. To access the lower assembly, the upper plate must be removed.Remove the upper plate as follows:1) Disconnect the Talk Out and the Talk In cables.2) Remove the four #10-32 screws.Connect the AC sources as follows:3) The ground wire from the AC conduit connects to terminal 1.4) The AC high wire from the AC conduit connects to terminal 2.5) The neutral wire from the AC conduit connects to terminal 3.Re-install upper plate:1) Secure plate to standoff.2) Reconnect the two cables; check all cables are tightly secured.
ACI-OIM-0001 RELEASED ER # AC—0010 9/16/99 12IV. EQUIPMENT INITIALIZATIONTo Initialize Equipment:1) Depress in the Circuit Breaker On/Off switch.2) Observe on the front door: Power LED: OnStatus LED: Flashing at 1 Hz rateCon LED: Off3) Close panel and secure door locks.There is no special requirement to operate the equipment; it is designed forunattended operation. Turn on and secure, close the door.
ACI-OIM-0001 RELEASED ER # AC—0010 9/16/99 13V. MAINTENANCE SCHEDULEThe Programmable Bi-directional Booster Amplifier is designed for unattendedoperation requiring minimal maintenance. General maintenance consists of equipmentinspection and operational tests. Periodical equipment tune-up and alignment isrecommended.Cable Inspection:The external and internal cables and connectors should be checked forindication of corrosion.Enclosure Inspection:The interior of the enclosures should be inspected for evidence ofcondensation.LED Inspection:Power LED: ONStatus LED: Flashing at 1 Hz rateCon LED OFFThe performance of operations testing is recommended to be done semi-annually. Operational testing will indicate equipment status determining if an alignmentis necessary.
ACI-OIM-0001 RELEASED ER # AC—0010 9/16/99 14VI. THEORY OF OPERATIONThe PBBA is a broadband bi-directional amplifier. It has 3 channels, 2 in theforward direction and 1 in the reverse direction. In the forward direction are two parallelchannels. One channel has a high gain amplifier chain and a band pass filter. Thischannel boosts the signals that come through the filter. These are the inbound signals.Above and below the filter passband are the outbound signals which are within the 100to 2000 MHz range and are handled by the other channel in the forward direction. Bothchannels use a broadband attenuator/amplifier module which has a 15dB dynamicrange and a gain of around 20dB at 0dB attenuation setting. The attenuation, thereforethe overall module gain/loss, is digitally set via computer interface.The filter in the inbound channel attenuates the outbound signals from 100 to2000 MHz, but is amplified again in the out of band channel. The difference in thesetwo channels is the high gain amplifier in the In-band channel.The reverse channel also uses the same broadband attenuator module, andcovers the same frequency range, 100 to 2000 MHz. Due to the configuration of thereverse channel its losses are higher and a medium gain amplifier follows the attenuatormodule to enhance channel gain.With the 3 channels integrated, the unit provides bi-directional amplification ofinbound signals.
ACI-OIM-0001 RELEASED ER # AC—0010 9/16/99 15VII. TROUBLESHOOTINGPROBLEM SOLUTION ON-SITE-REMEDY1) Power Indicator is off a) Check if the unit isplugged into a 120VACsource.b) Check if the internalcircuit breaker on/offswitch is depressedPlug in the unit to 120VACor depress internal circuitbreaker.2) Power indicator on butstatus light is not blinking Check connection to themicroprocessor board Microprocessor board isfaulty. Pull out for repair.3) Comport does not lightup when unit isprogrammedCheck serial cableconnections4) Unit does not respondwhen programmed Check serial cableconnections5) Unit does not providedesigned gain or unit doesnot have gain at all orintermittent operationa) Check RF connectionbetween modulesb) Check Talk In/Talk OutRF connections
ACI-OIM-0001 RELEASED ER # AC—0010 9/16/99 16III. SCHEMATICS,ASSEMBLY DRAWINGS,PARTS LISTSRemote Booster Amplifier 800 MHz50483-02-25 ASSEMBLY REMOTE BOOSTER AMPLIFIER 800 MHz50483-02-25 PARTS LIST REMOTE BOOSTER AMPLIFIER 800 MHz50483-02-26 ASSEMBLY ATTENUATOR AMP MODULE #150483-02-26 PARTS LIST ATTENUATOR AMP MODULE #1 50483-03-55 PCB ASSY BOOSTER ATTENUATOR50483-03-55 PARTS LIST BOOSTER ATTENUATOR50483-04-55 SCHEMATIC DIAGRAM BOOSTER ATTENUATOR50483-07-55 PCB FABRICATION BOOSTER ATTENUATOR50483-07-47 PCB FABRICATION ISOLATOR INTERFACE50483-05-46 HOUSING50483-05-47 COVER50483-02-27 ASSEMBLY MMIC AMP MODULE #150483-02-27-01 PARTS LIST MMIC AMP MODULE #1A50483-03-46 PCB ASSY MMIC AMPLIFIER50483-03-46 PARTS LIST MMIC AMPLIFIER50483-04-46 SCHEMATIC MMIC AMPLIFIER50483-07-46 FABRICATION MMIC AMPLIFIER50294-05-01 MECHANICAL ASSY LNA HOUSING50294-05-02 MECHANICAL ASSY COVER MOUNTING PLATE50483-02-30 ASSEMBLY MMIC AMP MODULE #250483-02-30 PARTS LIST MMIC AMP MODULE #250483-03-54 PCB ASSY MMIC AMP #250483-03-54 PARTS LIST MMIC AMP #250483-04-54 SCHEMATIC MMIC AMP #250483-07-54 FABRICATION MMIC AMP #250294-05-01 MECHANICAL ASSY LNA HOUSING50294-05-02 MECHANICAL ASSY COVER MOUNTING PLATE50483-02-28 ASSEMBLY RBA BPF MODULE50483-02-28 PARTS LIST RBA BPF MODULE50483-03-24 PARTS LIST LNA BPF50483-04-24 SCHEMATIC LNA BPF50483-07-24 FABRICATION LNA BPF50483-05-51 MECHANICAL ASSY BPF HOUSING50483-05-52 MECHANICAL ASSY BPF COVER50483-05-49 MECHANICAL ASSY MOUNTING PLATE FILTER50483-05-83 MYLAR CUTOUTS BPF HOUSING50483-05-50 MECHANICAL ASSY ENCLOSURE50483-05-53 MECHANICAL ASSY LOWER COMPONENT PLATE50483-05-54 MECHANICAL ASSY UPPER COMPONENT PLATE50583-05-55 MECHANICAL ASSY POWER SUPPLY MOUNTING PLATE50483-05-56 MECHANICAL ASSY POWER SHIELD
ACI-OIM-0001 RELEASED ER # AC—0010 9/16/99 17PROGRAMMABLE BI-DIRECTIONAL BOOSTER AMP
ACI-OIM-0001 RELEASED ER # AC—0010 9/16/99 18ATTENUATOR/AMPLIFIER MODULE #1 & #2
ACI-OIM-0001 RELEASED ER # AC—0010 9/16/99 19ATTENUATOR/AMPLIFIER MODULE #3
ACI-OIM-0001 RELEASED ER # AC—0010 9/16/99 20MMIC AMPLIFIER #1
ACI-OIM-0001 RELEASED ER # AC—0010 9/16/99 21MMIC AMPLIFIER #2
ACI-OIM-0001 RELEASED ER # AC—0010 9/16/99 22RBA BPF MODULE
ACI-OIM-0001 RELEASED ER # AC—0010 9/16/99 23IX. PERTINENT DOCUMENTATIONOther documents needed for the operation of the Programmable Bi-directional BoosterAmplifier Include the following:1) Programmable Bi-directional Booster Amplifier software manual
ACI-OIM-0001 RELEASED ER # AC—0010 9/16/99 24X. RECOMMENDED SPARESThe following spares are recommended:Due to the installation location of the Programmable Bi-directional BoosterAmplifier we recommend a complete upper and lower component plate assemblyspare. For quick in field service, swap.For shop/repair service, we recommend the following spares as modulereplacements:1 Attenuator Amplifier Module #11 Attenuator Amplifier Module #21 Attenuator Amplifier Module #31 MMIC Amplifier #11 MMIC Amplifier #21 RBA Band Pass Filter Module

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