RELM SMX920 Manuals

Manuals and User Guides for RELM SMX920. We have 1 RELM SMX920 manual available for free PDF download: Technical Manual

RELM SMX920 Technical Manual

RELM SMX920 Technical Manual (51 pages)

Base Station and Repeater

Brand: RELM | Category: Repeater | Size: 1.83 MB

Table of Contents

Table of Contents
7
1 General Description

11
- Physical Description
  12
- Module Functional Description
  16
  - RF Module and Main Controller Assembly
    16
  - Power Amplifier Module
    17
2 Installation and Operation

18
- Installation
  18
- Operation
  18
  - Setting to Work
    18
  - Table 2-1 Micro Controller Jumper
    19
  - Adjustments
    20
3 Standard Features

21
4 Options

23
- Simplex Changeover Relay
  23
  - Description
    23
  - Installation
    23
5 Technical Description

25
- Exciter Section
  25
- Receiver Section
  25
  - General Radio Management
    26
  - Table 5-1 Microprocessor Port Parameters
    26
  - RX Signal Processing
    27
  - TX Signal Processing
    27
  - RF Power Control
    28
  - User Interface
    28
- Power Amplifier Module
  28
6 SMX920 Base Station Fault Finding Procedure

30
- SMX920 Base Station
  30
  - Transmitter Section
    30
  - Receiver Section
    31
- Microcontroller Section of PCB
  32
- Receiver Module
  32
  - VCO Locking
    32
- Relm/ Bk Radio
  32
  - IF Section
    32
  - RX Front End
    32
  - Exciter Module
    33
  - Power Amplifier
    33
  - RF Power
    33
  - VCO Locking
    33
7 Alignment and Testing

36
- Transceiver Setup, Calibration and Alignment
  36
8 Appendices

41
- SMX920 Interface Connections
  41
- SMX920 Test Points
  42
- Table 8-3 SMX920 Test Points
  42
- Establishing RS232 Communications
  43
- SMX920 Specifications
  45
  - Operating Frequency Bands
    45
  - General
    46
  - Table 8-5 General Specifications
    46
  - Transmit
    47
  - Table 8-6 Transmit Specifications
    47
  - Receive
    48
  - Ancillaries
    48
  - Table 8-7 Receive Specifications
    48
  - Table 8-8 Ancilary Specifications
    48
- SMX920 Model Number Configuration Guide
  49
- Table 8-9 SMX920 Frequencies Bands
  49

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