Daniels Electronics Ltd. A22-VAP130 Manuals

Manuals and User Guides for Daniels Electronics Ltd. A22-VAP130. We have 1 Daniels Electronics Ltd. A22-VAP130 manual available for free PDF download: Instruction Manual

Daniels Electronics Ltd. A22-VAP130 Instruction Manual

Daniels Electronics Ltd. A22-VAP130 Instruction Manual (40 pages)

AM TRANSMITTER MAIN BOARD

Brand: Daniels Electronics Ltd. | Category: Receiver | Size: 0 MB

Table of Contents

Table of Contents
3
1 General

5
- Introduction
  5
- Performance Specifications
  5
  - Audio Specifications
    6
2 Theory of Operation

7
- AM Transmitter Main Board
  7
  - General
    7
  - Transmitter Push-To-Talk
    7
    
    Microphone PTT
    7
    
    PTT with Time-Out-Timer
    8
    
    PTT no Time-Out-Timer
    8
    
    Optional Relay
    8
    
    PTT Output
    9
    
    PTT Voltage Switching
    9
    
    Transmitter Standby Modes
    9
  - Audio Circuits
    10
    
    Microphone Audio
    11
    
    Received Audio
    11
  - Channel Selection
    11
    
    Synthesized Transmitter
    11
    
    Crystal Controlled Transmitter
    11
  - Amplifier Circuits
    12
- Front Panel Board
  12
- AM Audio Processor
  12
  - General
    12
  - Power Requirements
    12
  - Audio Circuitry
    13
  - PTT Time-Out-Timer
    14
3 Transmitter Alignment

15
4 Transmitter Interconnect Pin Definitions

21
5 Illustrations and Schematic Diagrams

25
6 Parts Lists

33
7 Revision History

39

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