Manuali utente per Codan Radio Communications VT-3H040-S-HSO

Sommario

• Introduction

  1
• Manual Organization

  1
• VT-3H040 Transmitter Family Models

  1
• Performance Specifications

  1
• General

  1
• Audio Specifications

  1
• Physical Specifications

  1
• Transmitter Operation

  2
• Frequency Selection

  2
• Transmitter Assembly and Adjustment

  2
• Complete Transmitter Alignment

  2
• Frequency Change

  2
• Output Power Adjustment

  2
• Deviation Setting

  2
• Setting RF Alarm Thresholds

  2
• Recommended Test Equipment List

  2
• Repair Note

  2
• Printed Circuitboard Numbering Convention

  2
• 3.1 MT-3 Transmitter Front Panel

  3
• 3.2 MT-3 Transmitter Case - Exploded View

  3
• PARTS LISTS

  4
• REVISION HISTORY

  5
• 1 GENERAL

  1
• Introduction

  1
• Performance Specifications

  1
• General Specifications

  1
• Audio Specifications

  1
• 2 THEORY OF OPERATION

  2
• Transmitter Main Board

  2
• General Theory of Operation

  2
• Transmitter Push-To-Talk

  2
• Microphone PTT

  2
• PTT With Time-Out-Timer

  2
• PTT No Time-Out-Timer

  2
• PTT Relay

  2
• PTT Output

  2
• PTT Voltage Switching

  2
• Transmitter Standby Modes

  2
• Audio Circuits

  2
• Microphone Audio

  2
• Received Audio

  2
• Channel Selection

  2
• Synthesized Transmitter

  2
• Crystal Controlled Transmitter

  2
• Amplifier Circuits

  2
• Time-Out-Timer Circuitry

  2
• Optional Time-Out Timer on the Audio Processor Board

  2
• MT-3 Front Panel Board

  2
• Version 1.8 Audio Processor

  2
• General

  2
• Power Requirements

  2
• Audio Processor Turn-on Time

  2
• Audio Processor Signals

  2
• Audio Processor Outputs

  2
• Audio Processor Modulation Output

  2
• Audio Processor Low Frequency / Direct Mod. Output

  2
• Audio Processor Inputs

  2
• Audio Processor Microphone Input

  2
• Audio Processor Balanced Input

  2
• Audio Processor Auxiliary Input

  2
• Audio Processor Subtone Inputs

  2
• Audio Processor Direct Modulation Input

  2
• Version 2.3 Audio Processor

  2
• Introduction

  2
• Version 2.3 FM Audio Processor Block Diagram

  2
• Factory Configuration

  2
• Turn-on Time

  2
• Low Frequency Modulation

  2
• Audio Processor Signals

  2
• FM Audio Processor Outputs

  2
• Audio Processor Modulation Outputs

  2
• Audio Processor Microphone Input

  2
• Audio Processor Balanced Input

  2
• Audio Processor Auxiliary Input

  2
• Audio Processor Subtone Inputs

  2
• Direct Modulation Input

  2
• Low Frequency Modulation

  2
• Audio Processor Signal Paths (Version 2.3)

  2
• 3 TRANSMITTER ALIGNMENT

  3
• General

  3
• Repair Note

  3
• Printed Circuit Board Numbering Convention

  3
• Recommended Test Equipment List

  3
• Standard Factory Settings and Jumper Configuration

  3
• MT-3 Transmitter Main Board Factory Configuration

  3
• MT-3 Transmitter Main Board Configuration

  3
• General

  3
• MT-3 Transmitter Main Board Test Points

  3
• Module Installation and Removal

  3
• Audio Processor Alignment

  3
• Multiple Channel Transmitters

  3
• Audio Processor Version Identification and Adjustment Locations

  3
• Audio Processor Alignment Procedures

  3
• Transmitters with Pre-Emphasis and CTCSS Subtone

  3
• Transmitters with Flat Audio and CTCSS subtone

  3
• 4 TROUBLESHOOTING

  4
• Balanced Input Test

  4
• Frequency Response Test

  4
• Subtone Input Test

  4
• TEMPERATURE COMPENSATION

  5
• TRANSMITTER INTERCONNECT PIN DEFINITIONS

  6
• 7 AUDIO PROCESSOR JUMPER CONFIGURATIONS

  7
• Version 1.8 Audio Processor Jumper Configuration

  7
• Version 2.3 Audio Processor Jumper and Select Value Tables

  7
• Wideband VHF and UHF Synthesized Transmitters

  7
• Narrowband VHF and UHF Synthesized Transmitters

  7
• Wideband Crystal Transmitters

  7
• Narrowband Crystal Transmitters

  7
• LTRTM Configuration

  7
• 8 ILLUSTRATIONS AND SCHEMATIC DIAGRAMS

  8
• Transmitter Block Diagram

  8
• Transmitter Main Board - Top Side Component Layout

  8
• Transmitter Main Board - Bottom Side Component Layout

  8
• Transmitter Main Board - Schematic Diagram

  8
• Front Panel Board - Component Layout

  8
• Front Panel Board - Schematic Diagram

  8
• Version 1.8 Audio Processor - Component Layout

  8
• Version 1.8 Audio Processor - Schematic Diagram

  8
• Version 2.3 Audio Processor - Component Layout

  8
• Version 2.3 Audio Processor - Schematic Diagram

  8
• Optional Time Out Timer Assembly

  8
• 9 PARTS LISTS

  9
• Transmitter Main Board Parts List

  9
• Transmitter Main Board Electrical Parts List

  9
• Transmitter Main Board Mechanical Parts List

  9
• MT-3 Front Panel Board Electrical Parts List

  9
• MT-3 Audio Processor Parts List (Version 1.8)

  9
• FM Audio Processor Parts List (Version 2.3)

  9
• 10 REVISION HISTORY

  10
• Audio Processor Block Diagram

  2
• Interconnection Pin Layout Diagram

  2
• Microphone and Balanced Input Circuitry, V2.3 Audio Processor

  2
• Limiter and Splatter Filter, V2.3 Audio Processor

  2
• Bypassing Compression, V2.3 Audio Processor

  2
• TX Audio Control Circuitry, V2.3 Audio Processor

  2
• Mode Condition Table

  2
• Standby Mode Selection Table

  2
• FM Audio Processor Total Current Consumption

  2
• Time-Out-Timer Settings

  2
• MT-3 Audio Processor Current Consumption.

  2
• Bandwidth Table

  2
• Factory Configuration

  2
• Turn on Time

  2
• Transmitter Main Board Jumpers

  3
• Main Board Test Points

  3
• Waveform Levels

  4
• Interconnection Pin Definitions

  6
• Audio Processor Version 1.8 Jumper Settings

  7
• Jumper and Select Values Table - Wideband Synthesized Transmitters

  7
• Jumper and Select Values Table - Narrowband Synthesized Transmitters

  7
• Jumper and Select Values Table - Wideband Crystal Transmitters

  7
• Jumper and Select Values Table - Narrowband Crystal Transmitters

  7
• Jumper and Select Values Table - LTRTM Modulated Transmitters

  7
• GENERAL

  1
• 1.1 Introduction

  1
• 1.2 Performance Specification

  1
• THEORY OF OPERATION

  2
• Amplifier Operation

  2
• Power Requirements

  2
• RF Circuitry

  2
• 2.3.1 VT-3H040 Lowpass Filter

  2
• Power Control Circuitry

  2
• Power Sensing Circuitry

  2
• 2.5.1 Output Power Sense

  2
• 2.5.2 VSWR Sense

  2
• 2.5.3 VSWR Overload

  2
• VT-3H040 AMPLIFIER ALIGNMENT

  3
• General

  3
• Repair Note

  3
• Recommended Test Equipment List

  3
• Printed Circuit Board Numbering Convention

  3
• Standard Factory Settings and Jumper Configuration

  3
• VT-3H040 Amplifier Alignment

  3
• 3.6.1 General

  3
• 3.6.2 VT-3H040 Amplifier Adjustment

  3
• ILLUSTRATIONS AND SCHEMATIC DIAGRAMS

  4
• 4.1 VT-3H040 Output Lowpass Filter Component Layout

  4
• 4.2 VT-3H040 Output Lowpass Filter Schematic Diagram

  4
• 4.3 VT-3H040 Amplifier Component Layout

  4
• 4.4 VT-3H040 Amplifier Schematic Diagram

  4
• PARTS LISTS

  5
• 5.1 VT-3H040 Amplifier Electrical Parts List

  5
• 5.2 VT-3H040 Lowpass Filter Electrical Parts List

  5
• 5.3 VT-3H040 Amplifier Mechanical Parts List

  5
• REVISION HISTORY

  6
• Manual Section Locator

  1
• Enhanced Synthesizer OS(R/T)-3H 29-71.4 MHz

  3
• General Information

  5
• Alignment

  10
• Schematics and Illustrations

  15
• Parts List

  21
• Enhanced Synthesizer OS(R/T)-3H 128-174 MHz

  27
• General Information

  29
• Alignment

  34
• Schematics and Illustrations

  39
• Parts List

  45
• Enhanced Synthesizer OS(R/T)-3H 406-470 MHz

  51
• General Information

  53
• Alignment

  58
• Schematics and Illustrations

  63
• Parts List

  69
• Revision History

  75
• General Information

  1
• Introduction

  1
• Performance Specifications

  2
• Theory of Operation

  5
• Paging Signal Path

  5
• OCXO/PLL

  8
• Alignment

  11
• Repair Notes

  11
• General

  12
• Setup

  13
• Frequency Adjustment (Digital Paging)

  13
• Reference Adjustment (Analog Paging)

  14
• Test Data Symmetry Adjustment

  14
• PLL Setup

  16
• Simulcast Delay Setup

  18
• Connector Pin Functions and Jumper Settings

  23
• Data / Control Port (Connector J1) Pin Functions

  23
• Motherboard Interface (Connector P1) Pin Functions

  24
• CI-PM-3 Data Delay Jumper Settings

  26
• CI-PM-3 Circuit Board Jumpers

  27
• TS-64 MOD1 Jumper Settings

  28
• 4-Level Modulation Bit Pattern

  28
• Receiver IF / Audio PCB Jumper Settings

  29
• Transmitter Audio Processor V2.3 Jumper Settings

  29
• Transmitter Synthesizer Jumper Settings

  29
• CI-PM-3 Test Points

  30
• Illustrations and Schematics

  31
• CI-PM-3 Front Panel Controls

  32
• Simulcast Paging

  33
• CI-PM-3 Component Layout - Top

  34
• CI-PM-3 Component Layout - Bottom

  35
• CI-PM-3 Schematic Diagram - Page 1

  36
• CI-PM-3 Schematic Diagram - Page 2

  37
• Parts Lists

  39
• Electrical Parts List

  39
• Mechanical Parts List

  44
• RevisionHistory

  45