Guardian G25AMK005 Manuals

Manuals and User Guides for Guardian G25AMK005. We have 1 Guardian G25AMK005 manual available for free PDF download: Technical Manual

Guardian G25AMK005 Technical Manual

Guardian G25AMK005 Technical Manual (85 pages)

GUARDIAN 110W MOBILE RADIO

Brand: Guardian | Category: Radio | Size: 2.01 MB

Table of Contents

Table of Contents
5
Chapter 1: General Information

9
- Scope
  9
- General Description
  9
- Performance Specifications
  9
Chapter 2: Hardware Theory of Operation

11
- Introduction
  11
- System Specifications
  11
- System Block Diagram
  12
  - Control Head
    13
  - Antenna Connection
    13
- Recm Control Hardware Theory of Operation
  14
  - Control Logic
    14
  - Figure 2-2: Guardian Control Logic
    14
  - Figure 2-3: RECM Power Supply
    15
  - Dsp
    17
  - Flash ROM
    17
  - Ram
    17
  - Tcxo
    17
  - Fpga
    18
  - If Adc
    18
  - Clock Generation
    18
  - Logic Audio CODEC
    18
  - Accessory Connector Interface and Filtering
    18
  - Transceiver Interface and Filtering
    18
  - Keypad Interface
    18
  - Audio Interface
    18
  - Test Interface
    19
  - Led
    19
  - RECM Power Consumption
    19
- Recm Transceiver Section
  19
  - Digital/Analog Control
    23
  - Keypad Microcontroller
    24
- Audio Amplifier Board
  24
  - Description
    24
  - Power Conditioning
    24
  - Communication with Transceiver
    25
  - Audio Amplifiers
    25
  - Power Levels Detector, Converter, and RF/DC Combiner
    25
  - PA ON/OFF Control (Bypass Mode)
    26
  - RF Power Indication
    26
  - Audio Board Block Diagram
    26
- Display Board
  27
  - Control Logic Interface
    28
  - Keypad
    28
  - Switch Interface
    28
Chapter 3: Software Theory of Operation

31
- Functional System Operation
  31
  - General
    31
  - Guardian Block Diagram
    31
  - Architecture
    32
  - Board Identification
    32
  - Self-Test on Power-Up
    32
  - Flash Software Upgrades
    32
  - Voice Coder/Decoder (VOCODER)
    32
- Radio Control Software
  32
  - Audio Control
    32
  - DSP Control Software
    32
  - Transceiver Board
    33
  - DC Power Control
    35
  - Monitoring
    35
  - Radio Control Drivers
    35
- Digital Signal Processing
  36
  - DSP Transmit Chain
    36
  - Figure 3-2: Transmit DSP Chain
    37
  - DSP Receive Chain
    38
  - Figure 3-3: Receive DSP Chain
    38
  - DSP Software
    41
- Keypad Mpu Software
  41
  - Overview
    41
  - General
    41
  - Keypad Scanning
    41
  - Push-To-Talk (PTT) Input
    41
  - Switch Input
    41
  - LED Output
    41
  - Backlight Control
    41
  - Serial Interface
    41
- Data Interface
  42
  - CAI Data Interface
    42
  - Synchronous Serial Data Interface
    42
  - CAI Data Link Layer
    42
  - Transmit Physical Link Layer
    43
  - Receive Physical Link Layer
    44
  - DES Encryption
    44
  - Host Interface
    45
  - Flash Interface
    45
  - Paging
    45
  - Hardware Control
    46
- Controller Software
  46
  - Overview
    46
  - Environment
    46
  - Figure 3-4: Controller Software
    46
  - Radio Store
    48
  - Program/Fill/Control Interface
    49
- User Interface
  50
  - Display
    50
  - Optional DTMF Microphone
    50
Chapter 4: Installation, Adjustment, and Operation

51
- Radio Configuration
  51
  - Channels
    51
  - Zones
    51
  - Banks
    51
- Installation and Adjustment
  51
  - Hardware
    51
  - Software
    51
- Operating Procedures
  51
  - Connect the Power Source
    51
  - Radio Power up
    52
  - Choose a Channel
    52
  - Transmit a Voice Message
    52
  - Receive a Voice Message
    52
  - Programming and Bypass Mode
    52
Chapter 5: Radio Set and Accessories

53
- System Description
  53
  - Mobile Radio
    53
  - Antenna
    53
  - Guardian PC Programmer
    53
  - Cloning Cable
    54
- Controls, Indicators, and Connectors
  54
  - Controls
    54
  - Indicators
    55
  - Connectors
    56
- Transceiver Characteristics
  56
  - Transmitter Characteristics
    56
  - Receiver Characteristics
    57
- Communication Security
  57
  - Algorithms
    57
  - Keyfill
    57
  - Zeroize
    58
Chapter 6: Servicing the Radio

59
- General
  59
- Self-Test at Power up
  59
- Caution
  59
Chapter 7: Troubleshooting

61
- Introduction
  61
- Radio Functional Tests
  61
  - Power-On Test
    61
  - Buttons and Switches Test
    61
  - Transmit Test
    61
  - Receive Test
    61
  - Audio Test
    61
Chapter 8: Definitions

63
Chapter 9: Signal Tones

65
Chapter 10 : Interface

67
- Accessory Connector Pins and Functions
  67
Chapter 11: Schematics

69

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