Motorola Solutions 89FC4823 Non Broadcast Transmitter User Manual Summit BR 800 Tx FCC Filing 3

Motorola Solutions, Inc. Non Broadcast Transmitter Summit BR 800 Tx FCC Filing 3

Exhibit D Users Manual per 2 1033 c3

APPLICANT: MOTOROLA EQUIPMENT TYPE: ABZ89FC4823 EXHIBIT D User / Operational Manual Operational or User’s Manual The manual should include instruction, installation, operator, or technical manuals with required ‘information to the users’. This manual should include a statement that cautions the user that changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. The manual shall include RF Hazard warning statements, if applicable. The instruction and service manual for this base radio are not published at this time. However, draft copy of available manual information has been assembled and has been included as part of this filing package. Upon request, published manuals will be sent to the commission and/or telecommunication certification body (TCB) as soon as they become available. All of the descriptions, block diagrams, and schematics that are included in this filing package are current as of the package submittal date. EXHIBIT DESCRIPTION D1-1 Manual Front Matter (Draft) D1-2 Specifications (Draft) D1-3 Field Replaceable Units and Orderable Parts (Draft) D1-4 Tune-Up Procedure (Draft) D1-5 Racking Configurations (Draft) D1-6 Functional Description / Operation of Modules (Draft)
APPLICANT: MOTOROLA EQUIPMENT TYPE: ABZ89FC4823 EXHIBIT D1-1 User / Operational Manual Manual Front Matter (Draft)
APPLICANT: MOTOROLA EQUIPMENT TYPE: ABZ89FC4823 EXHIBIT D1-1 User / Operational Manual Manual Front Matter (Draft, Continued)
APPLICANT: MOTOROLA EQUIPMENT TYPE: ABZ89FC4823 EXHIBIT D1-1 User / Operational Manual Manual Front Matter (Draft, Continued)
APPLICANT: MOTOROLA EQUIPMENT TYPE: ABZ89FC4823 EXHIBIT D1-1 User / Operational Manual Manual Front Matter (Draft, Continued)
APPLICANT: MOTOROLA EQUIPMENT TYPE: ABZ89FC4823 EXHIBIT D1-2 User / Operational Manual Specifications (Draft) General PerformanceModel T3000Number of Channels 16Frequency Generation SynthesizedH x W x D 5.25" x 19" x 16.5" (133x483x419mm)Weight 40 lbs (19 kg)Power RequirementsAC: 85-264 VAC, 47-63 Hz Standy 0.6A , Rated Power 5.4A @ 117 VACDC: 21.6 - 32 Volts DC Standy 1A, Rated P ower 13A @ 28 VDCTem perature Range -30 to 60 °C (-22 to 140 °F)Input / Output Impedance 50 ohmsAntenna Connectors Tx / Rx N-TypeModes of Operation Half-Duplex / DuplexFrequency Bands 403 - 470 MHz, 470 - 524 MHzInternal Frequency Stability 1.5 PP MExternal Reference Capable YesChannel Spacing 12.5 k Hz, 25 kHzTransmitterFrequency Range R1: 406.1-470 MHz, R2: 470-512 MHzRated Output Power 8 - 100 Watts, VariableIntermodulation Attenuation 40 dBAdjacent Channel Power -80 dBc (25 kHz) / -60 dBc (12.5 kHz)Wideband Noise (1 MHz) -152 dBc/HzRated System Deviation 5 kHz (25 kHz) / 2.5 kHz (12.5 kHz)Audio Distortion <3%FM Hum and Noise 50 dB (25 kHz) / 45 dB (12.5 kHz)Spurious Harmonic Emissions Attenuation 90 dBFCC Type AcceptanceFCC Identifier: Frequency Range Type Power OutputABZ89FC4823 406.1-470 MHz Transmitter Variable 8-100 WABZ89FR4824 406.1-470 MHz Receiver N/A
APPLICANT: MOTOROLA EQUIPMENT TYPE: ABZ89FC4823 EXHIBIT D1-3 User / Operational Manual Field Replaceable Units and Orderable Parts (Draft) Motorola provides the following approved accessories to improve the productivity of your base station / repeater. For a list of Motorola-approved accessories, visit the following web site: http://www.motorola.com/governmentandenterprise. MOTOTRBO MTR3000 Ordering Guideline Model Description T3000 MTR3000 Base Station/Repeater X340MT UHF 100W Power (403–470 MHz) X540MT UHF 100W Power (470–524 MHz) X182UL Duplexer, UHF 403–435 MHz X182UM Duplexer, UHF 435–470 MHz X182UN Duplexer, UHF 470–494 MHz X182UH Duplexer, UHF 494–512 MHz X265UL Preselector, UHF 380–435 MHz X265UM Preselector, UHF 435–470 MHz X265UH Preselector, UHF 470–524 MHz X676UL Dual Circulator, UHF (403–470 MHz) X676UH Dual Circulator, UHF (470–524 MHz) X371BA Antenna Relay Note: Antenna Relay is not compatible if ordering X182, Duplexer X189AA Power Cable, Europe X162AD Power Cable, UK X191AD Power Cable, Australia CA01520AA Power Cable, DC U178AB Cabinet Mount Hardware X153BA Rack Mount Hardware X347AF Manual Install and User CD X244AF Auxiliary System Cable X244AG Community Base Station/Repeater Panel Cable X244AH Phone Patch Cable C540AD System Connector Cable HKLN4439_ MTR3000 Capacity Plus Software Upgrade Customer Replaceable Power Cables for Standalone Base Radio Part Number Description TRN7663A Power Cable, North America TRN7755A Power Cable, Continental Europe TTN5049A Power Cable, UK / Ireland TTN5103A Power Cable, Australia
APPLICANT: MOTOROLA EQUIPMENT TYPE: ABZ89FC4823 EXHIBIT D1-3 User / Operational Manual Field Replaceable Units and Orderable Parts (Draft) (Continued) MOTOTRBO MTR3000 Field Replaceable Units Model Description DLN6701_ 100W PA, UHF 403–470 MHz DLN6702_ 100W PA, UHF 470–524 MHz DLN6703_ Exciter, UHF 403–470 MHz DLN6704_ Exciter, UHF 450–524 MHz DLN6705_ Receiver, UHF 403–470 MHz DLN6706_ Receiver, UHF 450–524 MHz DLN6707_ AC/DC Power Supply DLN6719_ Station Control TCXO CLN8629 MOTOTRBO MTR3000 Installation and User CD X347AF Manual Install and User CD Note The Manual Install and User CD contains: • MOTOTRBO MTR3000 Installation and User Manual (Including MTR2000 to MTR3000 MOTOTRBO Upgrade Kit) • MOTOTRBO MTR3000 Basic Service Manual Microphones/Speakers Model Description GMMN4063 Noise Cancelling Mic 0185180U01 Cable For External Speaker HSN1006 Speaker Miscellaneous Accessories Model Description RRX4025 ISB50LNC2 Bulkhead Arrestor 125-100 RRX4032 T-1 ISB50 Series Round Member Mount RRX4021 Lightening / Surge Arrestor RRX4034 Lightening / Surge Arrestor (110/220V AC Line Surge Protector) TRN4589 Dual Line Suppressor 3083908X02 Cable, Field System Adapter CLN1317* Antenna Relay CLN1316** Antenna Relay For Preselector Note (*) Includes Antenna Relay and required cables for stations without X265, Preselector (**) Includes Antenna Relay and required cables for stations that include X265, Preselector CKN1039* Preselector Cable Kit CKN1040** Preselector Cable For Antenna Relay Note (*) Order this cable for stations without X371, Antenna Relay (**) Order this cable for stations with X371, Antenna Relay Cabinets/Racks and Hardware Model Description THN6700 12 inch Indoor Cabinet THN6701 30 inch Indoor Cabinet THN6702 46 inch Indoor Cabinet THN6752 30 inch Modular Rack (16 RK U) THN6753 45 inch Modular Rack (24 RK U) THN6754 52 inch Modular Rack (27 RK U) THN6788_ Slides Motorola Cabinet CLN6833_ Slides Non-Motorola Cabinet CLN6679_ Rack Mount Hardware
APPLICANT: MOTOROLA EQUIPMENT TYPE: ABZ89FC4823 EXHIBIT D1-4 User / Operational Manual Tune-Up Procedure (Draft) All adjustments are software controlled and are pre-set at the factory. Certain station operating parameters can be changed using Customer Programming Software (CPS), within predetermined limits. Examples include transmit / receiver operating frequencies and transmitter power level. After the base station / repeater and ancillary equipment have been mechanically installed, properly cabled, and power applied, the equipment must then be optimized; that is, before placing the base station / repeater in operation. The cable required is a standard “USB A to B” cable. Optimization is performed through the Customer Programming Software (CPS), kit number RVN5115. After the base station / repeater is operational, the base station / repeater’s codeplug data must be copied to a PC- compatible computer. Optimization involves the following tasks: 1. Reading the base station / repeater codeplug from the base station / repeater (this ensures a match between the base station / repeater serial number (resident in the codeplug) and the serial number (part of the customized base station / repeater codeplug data) that is written back to the base station / repeater (see task 5). 2. Customizing the base station / repeater codeplug and saving the data to the base station / repeater. 3. Aligning the base station / repeater for: - Modulation Limit - Speaker Level - Station Reference - MTR2000 PA Calibration - Receiver Squelch Adjust 4. Performing post-optimization procedures. 5. Writing the customized codeplug to the base station / repeater codeplug. For details on these tasks, refer to the Customer Programming Software (CPS) Online Help.
APPLICANT: MOTOROLA EQUIPMENT TYPE: ABZ89FC4823 EXHIBIT D1-5 User / Operational Manual Racking Configurations (Draft) There are various equipment racking configurations available to customers. The following section depicts some of the racking alternatives. Floor-Mount Cabinet The front, side and top views for all available floor-mount cabinets are shown below. Cabinet models and hardware are shown in the following table: Model Description THN6700 12 inch Indoor Cabinet THN6701 30 inch Indoor Cabinet THN6702 46 inch Indoor Cabinet THN6788 Motorola Cabinet Slides CLN6833 Non-Motorola Cabinet Slides See the installation manual for recommended equipment ventilation clearances. For improved access to the unit, tray slides are available as shown in the table above.
APPLICANT: MOTOROLA EQUIPMENT TYPE: ABZ89FC4823 EXHIBIT D1-5 User / Operational Manual Racking Configurations (Draft, Continued) Modular Racks The front, side and top views for all available floor-mount cabinets are shown below. The cabinet models and associated description are shown in the following table: Rack Model Description THN6752 30 inch Modular Rack (16 RK U) THN6753 45 inch Modular Rack (24 RK U) THN6754 52 inch Modular Rack (27 RK U) The side, top and bottom views for all available modular racks are shown below. The top and bottom plates are identical, and all dimensions and clearances are common to all racks. Recommended clearance front and rear is 91.44 cm (36 in) minimum for servicing access. Refer to Equipment Ventilation for recommended ventilation clearances. FRU kit CLN6679 (Rack Mount Hardware) is included with each rack model. This allows proper installation of the MTR3000 base station / repeater within the rack’s center of gravity. NOTE: This kit includes two rack mount standoffs and eight mounting screws.
APPLICANT: MOTOROLA EQUIPMENT TYPE: ABZ89FC4823 User / Operational Manual Functional Description / Operation of Modules (Draft) EXHIBIT D1-6 Base Radio Module Overview The Motorola MTR3000 Base Station / Repeater (BR) provides a modular, flexible analog and digital station design for today's communication systems and of the future. The stations are available for use in Analog Conventional, Digital Conventional (MOTOTRBO), LTR Trunking, Passport Trunking, MOTOTRBO Capacity Plus Trunking, and MOTOTRBO Connect Plus Trunking configurations. The MTR3000 BR can either be configured as a stand-alone base station / repeater or as a base station / repeater connected to a back-end network, as in the case of operating in IP Site Connect mode. As a base station / repeater, it listens on one uplink frequency, and then re-transmits on a downlink frequency thus providing the RF interface to the field subscribers. When configured for analog station operation, the BR is designed to operate with most existing analog systems, therefore making a smooth migration to the MOTOTRBO system. When configured for digital operation, the BR offers additional services. The digital BR operates in TDMA mode, which essentially divides one channel into two virtual channels using time slots; therefore the user capacity is doubled. The BR utilizes embedded signaling to inform the field radios of the busy/idle status of each channel (time slot), the type of traffic, and even the source and destination information. Note: When configured in Digital Mode, the BR can only be used as a repeater. Note: At any given time, the BR either operates as a digital repeater or as an analog repeater. The MTR3000 BR is divided into functional modules that separate the frequency band specific and transmitter power specific circuits from other circuits and has separate modules for the control interface. These modules are self contained functional blocks with module-specific alarms. This design facilitates the field replaceable unit (FRU) concept of field repair to maximize system uptime. Indicators and Connections This section describes the LED indicators and connectors provided on the base station / repeater. The set of LEDs indicate the operational status of the base station / repeater. There are two sets of connectors for devices external to the base station / repeater: • One set connects to external devices to enable full operation of the base station / repeater. These are located at the back of the base station / repeater. • Another set connects to external devices for servicing the base station / repeater. These are located on the Station Control Module. LED Indicators A set of eight LEDs is located on the base station / repeater front bezel. The position of the eight LEDs on the front bezel is shown below. These LEDs indicate the status of the base station / repeater during normal operation. Front Bezel LEDs and Connectors After booting up the base station / repeater, the six LEDs (Power/Status, TX Slot 1, TX Slot 2, RX Slot 1, RX Slot 2 and the Mode LEDs) flashes in unison. The general status and condition of the MTR3000 Base Station / Repeater can be obtained by observing the eight LED indicators on the front bezel. The following tables show the LED symbols and their meaning and identify the information conveyed via the LED indicators.
APPLICANT: MOTOROLA EQUIPMENT TYPE: ABZ89FC4823 User / Operational Manual Functional Description / Operation of Modules (Draft) EXHIBIT D1-6 Front Bezel LED Indicators External Connections - Electrical Connections for the base station / repeater external connectors and line cord are located on the back panel and are shown below. Location of External Connectors at Rear of Base Station / Repeater The connection to external devices on the back panel is the J7 Auxiliary System Connector. The connector is a 25-pin connector used for connecting to an external device such as a trunking controller, tone remote adaptor, or phone patch. Service ports and LEDs are located on the front of the Station Control Module (SCM). The connection to external devices on the front of the station control module is the BNC connector. The connector allows the base station / repeater to be connected to a 5 MHz or 10 MHz external reference signal. The service ports include connectors for: • 5/10 MHz External Reference Signal • Ethernet Connector • Service Speaker Connector • USB Connector • Service Microphone Connector
APPLICANT: MOTOROLA EQUIPMENT TYPE: ABZ89FC4823 User / Operational Manual Functional Description / Operation of Modules (Draft) EXHIBIT D1-6 The locations of the connectors on the front of the station control module are shown below. Control Overview The Station Control Module (SCM) is described in this section. A general description, identification of controls, indicators, and inputs/outputs, a functional block diagram, and functional theory of operation are provided. The information provided is sufficient to give service personnel a functional understanding of the module, allowing maintenance and troubleshooting to the module level. General Description The SCM circuitry performs the digital signal processing, data formatting and audio routing for the base station / repeater (BR) and provides the external interfaces to the rest of the site. The SCM uses two TI OMAP1710 processors: - One for transmit and overall BR control functionalities - One for all receive functionalities Both OMAP1710 processors have independent boot Flash and RAM and, therefore can boot independently. General SCM functionality includes: • Data and Control interface to the Receiver’s Abacus III devices • Data and Control interface to the Exciter’s Trident chip set • Audio Codec interface with MAKO IC • Host memory size, speed, and types supported • External ports (Ethernet, USB, speaker and microphone) • External physical interfaces (switches, connectors, LEDs, external references etc.) • TX/RX DSP Multi-Channel Buffered Serial Port (MCBSP) interfaces • Intermodule communication (using SPI) • Internal station reference generation Functional Theory of Operation The following theory of operation describes the operation of the SCM at a functional level. The information is presented to give the service technician a basic understanding of the functions performed by the module in order to facilitate maintenance and troubleshooting to the module level. TX OMAP - The TX DSP is a TI OMAP Multimedia Processor. The OMAP1710 consists of a microprocessor unit (MPU) subsystem and a digital signal processor (DSP) subsystem. OMAP1710 has dedicated external memory interface that allow point-to-point connection to standard mobile SDRAM/DDR and mobile flash devices. It is a low-power device (1.4V Core and 1.8V I/O supply). TX OMAP handles all transmit tasks of the SCM. External Memory - Both transmit and receive DSP’s support independent external memory banks. RAM - The SCM supports Mobile Double Data Rate SDRAM. It has the following basic characteristics: The maximum external clock rate for the DDR is 90 MHz. Since data is transferred on both clock edges, the effective data rate is 180 Mwords/s. Flash - The SCM supports 256 MB external flash memory. Serial Peripheral Interface (SPI) - The station local and Intermodule SPI Bus is controlled by both TX and RX OMAP1710 processors, which has an on-chip SPIF (fast SPI) interface. The OMAP1710 SPIF supports master
APPLICANT: MOTOROLA EQUIPMENT TYPE: ABZ89FC4823 User / Operational Manual Functional Description / Operation of Modules (Draft) EXHIBIT D1-6 and slave modes, programmable clock rate, phase, polarity, programmable word size, programmable bit ordering, and loopback. Before an SPI data transfer can take place, the SPI master (initiator) must assert the select line of the slave (target) device. The OMAP1710 is always the SPI master for MTR3000 BR. To simplify overall SPI architecture for MTR3000 BR, address decoding is used instead of individual device chip signals. This approach not only minimizes the number of GPIOs needed for device chip select, it also provides flexibility for future expansion. This device address decoding is handled by a Field Programmable Gate Array (FPGA) on the SCM and a Customer Programmable Logic Device (CPLD) on each FRU’s, except the power supply. The FPGA SPI module performs address and chip select decoding, level shifting, and signal mixing for both the TX OMAP SPI bus and the RX OMAP SPI bus. Simultaneous RX and TX SPI accesses are allowed. The TX and RX SPI are 100% independent. Station Reference RX - A TCXO provides the frequency reference for the BR. The TCXO is 16.8 MHz. The FPGA is used to create other clocks locked to the TCXO which are needed by various devices on the Control Board. The clocks are summarized in the following table: Station Control Module (SCM) FPGA output Frequencies Frequency Destination 12 MHz TX OMAP, RX OMAP 24.576 MHz MAKO 32.768 kHz TX OMAP, RX OMAP, MAKO RX OMAP The RX DSP is a TI OMAP Multimedia Processor. The OMAP1710 consists of a microprocessor unit (MPU) subsystem and a digital signal processor (DSP) subsystem. OMAP1710 has dedicated external memory interface that allows point-to-point connection to standard mobile SDRAM/DDR and mobile flash devices. It is a low-power device (1.4V Core and 1.8V I/O supply). The RX OMAP handles receiving tasks of the SCM only. MAKO - MAKO IC is a customized IC and the SCM uses this device to leverage some unique functionality that it provides. Most of the MAKO functionalities are not used on the SCM. Only the MAKO codec, USB driver, ADC, DAC, and some voltage regulators are used for MTR3000. The 9 channel general purpose ADC is used for various controller metering. Field Programmable Gate Array (FPGA) - The SCM FPGA includes the following major functions: • External reference watchdog • SPI Address decoding and buffering • TCXO Phase detection and compensation • Clock generation • Reset controller • External Interface (Wireline SSI, LED, etc.) FPGA field upgrade capability is also supported on MTR3000. Audio - There are four transmit inputs: TX Audio, TX Audio-Pre & TX Data on the backplane 25-Pin connector, and the microphone input on a front panel RJ45 connector. TX Audio is a flat (not pre-emphasized) input which is used if the incoming transmit audio signal is already pre-emphasized or if pre-emphasis is not needed. The TX Audio-Pre input provides a hardware pre-emphasis filter. The TX Data input is used for low speed data, Private-Line (PL) and Digital Private Line (DPL) signals. The TX Audio, TX Audio-Pre and microphone inputs pass through a hardware modulation limiter and splatter filter before being summed with TX Data, with the TX Data bypassing the limiter and splatter filter. This summed signal is applied to the MAKO codec “mic” input. The audio signal without TX Data is provided on the MAKO codec “aux_mic” input. There are three receive outputs: RX Audio & Aux RX Audio on the backplane 25-Pin connector and speaker audio on a front panel RJ11. The speaker audio is the sum of the MAKO codec output (demodulated audio) and transmit audio. A high pass filter removes any data, PL or DPL from the speaker audio. A programmable attenuator is used to adjust the speaker audio level before being output on the RJ11 connector. Aux RX Audio is the output of
APPLICANT: MOTOROLA EQUIPMENT TYPE: ABZ89FC4823 User / Operational Manual Functional Description / Operation of Modules (Draft) EXHIBIT D1-6 the MAKO codec (demodulated audio), and RX Audio is the sum of the MAKO codec output and the microphone audio. A block diagram of the audio paths follows: Ethernet Interface - Since OMAP1710 does not support a direct Ethernet interface, a bridge device is needed to support Ethernet on the SCM. The bridge device is a high performance hi-speed USB2.0 to 10/100 Ethernet controller. The device contains an integrated 10/100 Ethernet PHY, USB PHY, Hi-Speed USB 2.0 device controller, 10/100 Ethernet MAC, TAP controller, EEPROM controller and a FIFO controller with a total of 30 KBytes of internal packet buffering. The following is a list for functionality that the Ethernet Interface can provide: • Fully Compliant with IEEE 802.3 and 802.3u Compatible Ethernet Controller • 10Base-T and 100Base-TX support • Integrated Media Access Control (MAC) and PHYsical (PHY) • Supports one 10BT port with automatic polarity detection and correction • Supports full and half duplex mode and flow control • Universal Serial Bus (USB) and Joint Test Action Group (JTAG) parameters Backplane - The connector that connects the controller to the backplane is a right angle, 96-Pin Connector. It provides connectivity between the MTR3000 controller and other station FRU, such as the Wireline card, the AUX IO card as well as, third party equipments. Exciter - The connector used to connect the controller to the Exciter and Receiver is a dual row, right angle, early entry receptacle, without flange, 30-Pin Connector. It provides 16.8 MHz reference clock, 14.2V, 10V and 8V supply voltage, SPI, Trident SSI and other digital handshake signals with the Exciter. Receiver - The connector used to connect the controller to the Exciter and Receiver is a dual row, right angle, early entry receptacle, without flange, 30-Pin Connector. It provides 16.8 MHz reference clock, 14.2V, 10V and 8V supply voltage, SPI, Abacus SPI/SSI and other digital handshake signals with the Receiver.
APPLICANT: MOTOROLA EQUIPMENT TYPE: ABZ89FC4823 User / Operational Manual Functional Description / Operation of Modules (Draft) EXHIBIT D1-6 Receiver Overview The Receiver Module provides the Receiver functionality for the UHF station. The Receiver module performs highly-selective bandpass filtering and dual down-conversion of the desired RF signal. A custom Receiver IC then performs an analog-to-digital conversion of the desired received signal and outputs a differential data signal to the Station Control Module (SCM). The Receiver Module kit contains an on-board, varactor-tuned preselector, which cover the frequency ranges of 403–470 MHz, and 450–524 MHz, respectively. The UHF range Receivers utilize an external coaxial-resonator bandpass filter (BPF) for some configurations. Overview of Circuitry The Receiver Module contains the following circuitry: • Frequency Synthesizer Circuitry – consists a phase-locked loop and Voltage-Controlled Oscillator (VCO), generates the first LO injection signal • Varactor-tuned Preselector Filter – provides bandpass filtering of the station Receiver RF input • Receiver Front End Circuitry – performs filtering, amplification, and the first down conversion of the Receiver RF signal • Custom Receiver IC Circuitry – consists a custom IC which performs the second down conversion, filtering, amplification, and analog-to-digital conversion of the receive signal • Analog to Digital Converter (ADC) Converter Circuitry – converts analog Receiver status signals to digital format for transfer, upon request, to the SCM • Local Power Supply Regulation – accepts +8V, +10V and +14.2V inputs and outputs +2.775V, +3.3V, +5V, +10V, and +14.2V operating voltages Input and Output Connections The following shows the Receiver module input and output external connections.
APPLICANT: MOTOROLA EQUIPMENT TYPE: ABZ89FC4823 User / Operational Manual Functional Description / Operation of Modules (Draft) EXHIBIT D1-6 Specifications The following table shows the specifications of MTR3000 Base Station / Repeater’s Receiver. Parameter Specification Frequency Ranges 403–470 MHz (UHF R1) or 450–524 MHz (UHF R2) Electronic Bandwidth Full Bandwidth (UHF R1 and R2) Analog Sensitivity 12 dB SINAD 0.257 μV (-118.8 dBm) Intermodulation Rejection 85 dB Adjacent Channel Rejection* 75 dB at 12 kHz, 80 dB at 25 kHz Spurious and Image Response Rejection 85 dB Intermediate Frequencies 1st: 73.35 MHz 2nd: 2.25 MHz RF Impedance 50 Ω Current Draw (Maximum) 0.04A from 14.2 VDC supply 0.52A from 10 VDC supply 0.11A from 8 VDC supply Receiver Front End Circuitry The RF signal enters the Receiver through a BNC-type RF connector, located on the bottom side of the Receiver. The signal is then low-pass filtered, and the 1/2 IF and image frequency are filtered through the tunable preselector. This signal is then amplified using a low-noise amplifier (LNA), and then further filtered to remove the image signal. Receiver Back End Circuitry The signal after the image filter is then mixed down to the first IF, via a high performance (high IIP3) mixer, driven by the low-phase noise, voltage-controlled Colpitts oscillator (VCO). The mixed-down signal then passes through a 3-pole, crystal IF bandpass filter and an IF amplifier. The amplifier output signal passes through another 3-pole crystal bandpass filter, and the resultant signal passes through a digital step attenuator. The desired signal is then applied to the RF input of the custom backend Receiver IC. Voltage Controlled Oscillator (VCO) The Receiver Voltage Controlled Oscillator (VCO) generates a sinusoidal output signal that ranges from 476.35 MHz to 543.35 MHz (UHF R1) and 523.35 MHz to 597.35 MHz (UHF R2). Either UHF R1 or UHF R2 can be used at a time. The Receive Voltage-Controlled Oscillator (RXVCO) line-up consists of four sub-circuits: a Voltage-Controlled Oscillator (VCO), an attenuator, a buffer-amplifier, and a low pass filter (LPF). The active device is from oscillator topology, utilizing a high-Q resonator, and four anti-parallel configured, hyper-abrupt, tuning varactors. The attenuator provides a broadband RF load for the VCO. The buffer-amplifier provides power leveling and isolation. The LPF provides VCO harmonic attenuation. Synthesizer Circuitry The Receiver synthesizer is a subcircuit within a custom IC, which when connected with a loop filter, VCO, buffer amplifier, lowpass filter, driver amplifier, unequal splitter, and feedback attenuator forms a phase-locked loop. The frequency and phase of the VCO is locked to a highly-stable external Temperature Compensated Crystal Oscillator (TCXO) reference (16.8 MHz). The custom IC contains the following integrated Phase locked loop (PLL) components: prescaler, fractional-N divider, reference divider, phase detector, and charge-pump (for the external loop-filter). The reference divider frequency is selected to be either 8.4 MHz or 5.6 MHz.
APPLICANT: MOTOROLA EQUIPMENT TYPE: ABZ89FC4823 User / Operational Manual Functional Description / Operation of Modules (Draft) EXHIBIT D1-6 Custom Backend Receiver IC Circuitry The custom backend Receiver IC provides additional amplification, filtering, and a second downconversion. The second IF signal is converted to a digital signal, and output via either a differential or single-ended driver to the digital signal processor (DSP) in the SCM. Memory Circuitry The memory circuitry consists of an Electrically Erasable Programmable Read-Only Memory (EEPROM), located in the Receiver. The SCM performs memory read and write operations via the SPI bus. The RX Front-End Filter tuning calibration is stored in the EEPROM. Therefore, no field tuning is ever required for the Receiver. Analog to Digital (ADC) Converter Metering Circuitry Analog signals from points throughout the Receiver are applied to the ADC converter. These analog signals are converted to digital signals and then sent to the SCM, via the Serial Peripheral Interface (SPI) lines, upon request of the SCM. Communications with Station Control Module Data communications between the Receiver and the Station Control Module microprocessor (μP) is performed via a Serial Peripheral Interface (SPI) bus. This bus allows the SCM μP to send data to the synthesizer PLL IC (to select frequency) and to read the ADC Converter IC. ADC Converter Circuitry Analog signals from various strategic operating points throughout the Receiver board are fed to an ADC converter, which converts them to a digital signal and, upon request by the Station Control Module, outputs the signal to the Station Control Module via the Serial Peripheral Interface (SPI) bus.
APPLICANT: MOTOROLA EQUIPMENT TYPE: ABZ89FC4823 User / Operational Manual Functional Description / Operation of Modules (Draft) EXHIBIT D1-6 Exciter Overview The Exciter Modules (in conjunction with the Power Amplifier Module) provides the transmitter functions for the station. Contained within a metal clamshell housing, the Exciter board generates a low-level modulated Radio Frequency (RF) signal which is input to the power amplifier module for further amplification and output to the transmit antenna. The Exciter Modules interfaces directly with the Station Control Module (SCM), which provides control signals and monitoring, and routes transmit audio to the Exciter. The RF carrier is generated by a frequency synthesizer consisting of synthesizer circuitry and Voltage-Controlled Oscillator (VCO) circuitry. Exciter module control signals, monitoring, and audio processing are handled by the Station Control Module (SCM). The Exciter Modules differ only in the range of operation. Unless otherwise noted, the information provided in this section applies to all models. The Exciter board contains the following circuitry: • Frequency Synthesizer Circuitry – consists of a phase-locked loop and Voltage-Controlled Oscillator (VCO), generates a modulated RF signal at the transmitter carrier frequency • RF Isolation Switch – allows the SCM to turn on/off the Exciter RF output signal to the power amplifier module • Analog to Digital Converter (ADC) Converter Circuitry – converts the analog Exciter status signals to the digital format for transfer, upon request, to the SCM • Local Power Supply Regulation/Filtering – accepts +8V, +10V and +14.2V inputs and provides +5V, +10V, and +12V operating voltages Input and Output Connections - The following shows the Exciter module input and output external connections. Specifications of Exciter Module Parameter Specification Frequency Ranges 403–470 MHz (UHF R1) or 450–524 MHz (UHF R2) Electronic Bandwidth Full Bandwidth (UHF R1 and R2) Output Power 10–14 dBm Current Draw (Maximum) 0.04A from 14.2 VDC supply 0.15A from 10 VDC supply 0.02A from 8 VDC supply Harmonics -20 dBc
APPLICANT: MOTOROLA EQUIPMENT TYPE: ABZ89FC4823 User / Operational Manual Functional Description / Operation of Modules (Draft) EXHIBIT D1-6 Functional Theory of Operation The following theory of operation describes the operation of the Exciter circuitry at a functional level. The information is presented to give the service technician a basic understanding of the functions performed by the module in order to facilitate maintenance and troubleshooting to the module level. Refer to a block diagram of the Exciter module. Functional Overview Synthesizer and VCO Circuitry Phase-Locked Loop The phase-locked loop (PLL) IC receives frequency selection data from the SCM microprocessor (via the SPI bus). Once programmed, the PLL IC compares an 8.4 MHz reference signal (from the SCM) with a divided-down feedback sample of the VCO output. Depending on whether the feedback signal is higher or lower in frequency than the 8.4 MHz reference, up/down correction pulses are generated. (The width of these correction pulses depends on the quantitative difference between the 8.4 MHz reference and the VCO feedback). The up/down pulses from the PLL IC are fed to a charge pump which outputs a DC voltage proportional to the pulse widths. This DC voltage is then low-pass filtered and fed to the VCO as the control voltage. Voltage Controlled Oscillator (VCO) The DC control voltage from the synthesizer is fed to dual VCOs which generate the RF carrier signal. Within each band, one VCO generates signals in the upper half of the band, while the other VCO generates signals in the lower half of the band. Only one VCO is active at a time. Selection of the active VCO is provided by a VCO_SELECT signal from the PLL IC. The active VCO responds to the DC control voltage and generates the appropriate RF signal. This signal is fed through impedance matching, amplification, and filtering and is output to the RF Switch Circuitry. A sample of the output is returned to the PLL IC to serve as a VCO feedback signal. Modulation The Exciter uses dual-port FM modulator consisting of Digital Signal Processor (DSP), PLL low-port and high port blocks, fractional-N PLL, loop filter and the VCO. The modulator is calibrated once during factory test and its values are stored in the EEPROM. The modulator does not require any further tuning or maintenance. Amplifiers The amplifiers consist of a driver amplifier and the final amplifier. The driver amplifier operates from a nominal 5V supply and the final amplifier operates from a nominal 10V supply. The driver amplifier amplifies the VCO output signal and provides the output signal to the final amplifier. There are fixed attenuators at the output of the driver and final amplifier to set the Exciter output power level. The final amplifier amplifies the signal and provides a constant signal level to the PA. RF Switch Circuitry The modulated RF signal from the VCO is fed through a buffer, driver, and attenuator and finally to an RF switch circuit. Signal EX_ENABLE from the SCM controls the switch and final amplifier. The RF signal is passed through a LPF and to a BNC connector mounted in one corner of the module, just outside the module cover. A short coaxial cable connects the Exciter output to the power amplifier module.
APPLICANT: MOTOROLA EQUIPMENT TYPE: ABZ89FC4823 User / Operational Manual Functional Description / Operation of Modules (Draft) EXHIBIT D1-6 Communications with Station Control Module Data communications between the Exciter and the Station Control Module microprocessor (μP) is performed via a Serial Peripheral Interface (SPI) bus. This bus allows the SCM μP to send data to the synthesizer PLL IC (to select frequency) and to read the ADC Converter IC. ADC Converter Circuitry Analog signals from various strategic operating points throughout the Exciter board are fed to an ADC converter, which converts them to a digital signal and, upon request by the Station Control Module, outputs the signal to the Station Control Module via the Serial Peripheral Interface (SPI) bus. Voltage Regulation/Filtering Circuitry The voltage regulator circuitry consists of a +5V, +3.3V and +2.775V regulators that supplies power to the digital circuitry and the PLL. The +12V regulator is used to supply power to the VCO and the +10V supplies power to the final device.
APPLICANT: MOTOROLA EQUIPMENT TYPE: ABZ89FC4823 User / Operational Manual Functional Description / Operation of Modules (Draft) EXHIBIT D1-6 Power Amplifier Module Overview The Power Amplifier (PA) is a forced convection-cooled RF power amplifier. It accepts a low-level modulated RF signal from the Exciter Module, and amplifies it for transmission via the site transmit antenna port. The PA is non-linear, and is therefore used for continuous wave (CW) applications only. The output power is continually monitored and regulated by a feedback and control loop, with a power output control voltage being generated by the transmitter control circuitry located on the PA Input/Output boards. Overview of Circuitry The Power Amplifier contains the following sub-circuits: • DC Distribution Board – main interface for the PA to the Station Control Module (SCM) and Power Supply (PS). This board contains PA SPI circuits including Analog to Digital Converter (ADC), Digital to Analog Converter (DAC), and Non-Volatile Memory (NVM) devices, and hardware (HW) metering circuitry • RF Board – provides RF signal amplification from the Exciter Module low-level signal to the BR output power level • Isolator – protects the PA from damage when poor RF load conditions exist. Also assists with intermodulation attenuation performance • Output Board – performs harmonic filtering and RF power detection functions, and routes the RF signal to the antenna port Input and Output Connections The following shows the PA input and output external connections.
APPLICANT: MOTOROLA EQUIPMENT TYPE: ABZ89FC4823 User / Operational Manual Functional Description / Operation of Modules (Draft) EXHIBIT D1-6 The following table shows the specifications of MTR3000 Power Amplifier (PA). Specifications of Power Amplifier Parameter Specification Operational Frequency Range 403–470 MHz (UHF R1) or 470–524 MHz (UHF R2) Minimum Input Return Loss (TX mode) 7 dB Rated RF Output Power Range 8–100 W Rated RF Input Power Range 9.8–14 dBm 28.6V Supply Nominal Voltage (AC Power) 28.6V (+/- 4%) 14.2V Supply Nominal Voltage 14.2V (+/- 3%) 28.6V Supply Maximum Current Draw 12.6A 14.2V Supply Maximum Current Draw 2.0A Maximum Standby Power Consumption 1.2 W Functional Theory of Operation The Power Amplifier (PA) is designed for continuous-duty operation across each specified band and power level. All PA contain a multi-stage power amplifier board at the input (RF Board), a circulator with isolation load termination, a low-pass filter/directional coupler at the output (Output Board), and a DC Distribution Board incorporating circuitry for diagnostics and RF power control. The PA and its sub-circuits are broad-band devices and require no manual tuning or alignment to operate over the specified conditions. The main interface between the PA and the rest of the BR is through the DC Distribution Board. The DC distribution board contains the PA external I/O’s that connects to the power supply directly through a cable and to the control module through a cable to the backplane. These I/O’s are used to distribute the DC supply buses (28.6V and 14.2V nominal) from the power supply to within the PA as well as the various signals used for the control of the PA from the SCM such as the SPI bus signals, PA enable, and the reset line. The DC Distribution Board contains the SPI circuitry as well as metering circuitry used by both SW and internal PA HW for determining when fault conditions are present and take appropriate action when needed. A brief description of the PA SPI devices is shown below: • Customer Programmable Logic Device (CPLD): main PA SPI interface, with all other PA SPI devices connected through this device • Non-Volatile Memory (NVM): used to store calibration data and identification information • Digital to Analog Converter (DAC): converts SW digital signals to analog within the PA. This controls the PA fan, power control circuit, and some other circuits within the PA • Analog to Digital Converter (ADC): converts analog signals within the PA to digital for SW interface. These signals are used by SW for HW metering A combination of software (SW) and hardware (HW) controls are used to regulate the PA RF output power level. By way of software control, the SCM programs RF output power through the SPI bus. Once programmed, the PA power control loop will level the output power to the requested level, if possible. The requested output power may not be achievable if an alarm condition is present, and output power may be reduced by way of SW or HW control if alarm conditions are present. Within the Base Station / Repeater (BR), the modulated RF signal passes from the Exciter Module to the driver amplifier within the PA. The driver amplifier is located on the RF Board and is a multi-stage amplifier circuit that amplifies the RF input signal up to a maximum of approximately 4 W, as needed to achieve the software requested BR RF output power. The RF signal from the driver amplifier is further amplified by the final amplifier stage, which is also located on the RF Board and consists of multiple paralleled RF devices with associated splitting and combining circuitry. This RF signal then passes through a circulator and harmonic (low pass) filter, through an RF directional coupler, and is output to the site transmit antenna port. The circulator prevents a high Voltage Standing Wave Ratio (VSWR) at the PA output from damaging the final amplifier devices, and also improves intermodulation attenuation (IMA) performance by providing isolation to the final amplifier. The harmonic filter attenuates the harmonic levels generated by the preceding RF amplifier devices. The RF directional coupler is a calibrated wattmeter, with its calibration information stored in the PA NVM. The forward and reverse power wattmeter provides a signal corresponding to the measured output power to the ADC
APPLICANT: MOTOROLA EQUIPMENT TYPE: ABZ89FC4823 User / Operational Manual Functional Description / Operation of Modules (Draft) EXHIBIT D1-6 for metering purposes so that SW can monitor the PA/BR output power. Also, this voltage is provided to the power control circuitry within the PA to serve as the feedback signal in the power control loop for setting output power. The forward power meter along with the reverse power meter is used by SW to measure the VSWR presented to the PA output and to determine when an alarm condition is present. The SW requested power level may include one or more SW controlled adjustments based on various alarm conditions, if present, generated from monitored PA metering signals which are fed back to the SCM via an ADC converter. Using the ADC metering circuitry, SW monitors the PA for alarm conditions, such as high reflected power/VSWR or high/low supply voltage, and takes action to reduce output power or dekey the station accordingly in order to protect the HW from damage or improper operation. Temperature monitoring circuitry is also contained within the PA. When the temperature reaches a certain threshold, the PA fan turns on to reduce the operating temperature of the PA. If the temperature continues to rise and reaches another predefined threshold, the BR output power may also be reduced in order to protect the HW from thermal failure. Both the fan control and the power control manipulation for thermal protection is fully HW controlled, and requires no SW interaction.
APPLICANT: MOTOROLA EQUIPMENT TYPE: ABZ89FC4823 User / Operational Manual Functional Description / Operation of Modules (Draft) EXHIBIT D1-6 Power Supply Module Overview The Power Supply is described in this section. The information provided is sufficient to give service personnel a functional understanding of the module, allowing maintenance and troubleshooting to the module level. (Refer to the service manual for Maintenance and Disassembly/Reassembly Procedures for detailed removal or installation procedures for all modules in the station.) The Power Supply has built in power factor correction and includes a connection for battery backup that also serves as the DC input when the supply is used in DC only input mode. The Power Supply accepts an AC or a DC input (AC input = 85 to 264 VAC, 50/60 Hz, DC input = 21.6 to 32 VDC) and generates three output DC voltages to power the station modules: +28.6 VDC, +14.2 VDC and +5.1 VDC. Note: When used in DC input mode, the 28.6 VDC output equals the DC input within 0 to -0.5 VDC. Note: An external 24V (nominal) battery system is required to support the battery backup feature so that when the AC power fails, the BR can be powered from a DC battery source if it is connected to the PS. This results in uninterrupted radio service (for as long as battery power can be provided). As the PS does not have a battery charging function, when the AC power is restored, an external charger is required to recharge the battery. The power supply is a high-frequency switched mode design, all contained in a metal heat-sink, and mounted on the left-hand side of the station. The design provides for output over-voltage/overcurrent protection. The AC input connection is made at the rear of the station via an IEC-type connector keyed to accept only high temperature type mating connectors. Also provided is a Battery Backup connection (see DC mode above). Power supply cooling, when necessary, is provided by an external fan (located near the middle of the heatsink) which provides forced air across the power supply heatsink fins. The following shows the electrical performance specifications for the power supply. Power Supply Module AC Performance Specification: Parameter Value or Range Input Voltage Range 85 VAC to 264 VAC Input Frequency Range 47–63 Hz Steady State Output Voltage 28.6 V @ 13 A, 14.2 V @ 8 A, 5.1 V @ 2 A Output Power (Rated) 500 W Output Ripple: +28.6 VDC +14.2 VDC +5.1 VDC 50 mV p-p, @ 25°C (77°F) 50 mV p-p, @ 25°C (77°F) 100 mV p-p, @ 25°C (77°F) Power Supply Module DC Performance Specification: Parameter Value or Range Input Voltage Range 21.6 - 32 VDC Steady State Output Voltage 28.6 V @ 13 A, Input Voltage Dependent 14.2 V @ 8 A, Regulated 5.1 V @ 2 A, Regulated Output Power (Rated) 500 W Output Ripple: +28.6 VDC +14.2 VDC +5.1 VDC Input Voltage Dependent, 0-0.5V below input 50 mV p-p, @ 25°C (77°F) 100 mV p-p, @ 25°C (77°F)

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