RELM BK RADIO SDMX920 Manuals

Manuals and User Guides for RELM BK RADIO SDMX920. We have 1 RELM BK RADIO SDMX920 manual available for free PDF download: Technical Manual

RELM BK RADIO SDMX920 Technical Manual

RELM BK RADIO SDMX920 Technical Manual (51 pages)

Base Station and Repeater

Brand: RELM | Category: Repeater | Size: 0.97 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
- Screw Head Types
  18
- Operation
  19
  - Setting to Work
    19
  - Table 2-1 Micro Controller Jumper
    20
  - Adjustments
    21
3 Standard Features

22
4 Options

24
- Simplex Changeover Relay
  24
  - Description
    24
  - Installation
    24
5 Technical Description

26
- Exciter Section
  26
- Receiver Section
  26
  - General Radio Management
    27
  - Table 5-1 Microprocessor Port Parameters
    27
  - TX Signal Processing
    28
  - RX Signal Processing
    28
  - RF Power Control
    29
  - User Interface
    29
- Power Amplifier Module
  29
6 MX920 Base Station Fault Finding Procedure

31
- MX920 Base Station
  31
  - Transmitter Section
    31
  - Receiver Section
    32
- Microcontroller Section of PCB
  33
- Receiver Section
  33
  - Vco
    33
  - RX Front End
    33
  - IF Section
    33
- Excit R E
  34
  - Vco
    34
- Powe R
  34
7 Alignment and Testing

37
- Transceiver Setup, Calibration and Alignment
  37
8 Appendices

42
- MX920 Interface Connections
  42
- MX920 Test Points
  44
- Table 8-3 MX920 Test Points
  44
- Establishing RS232 Communications
  45
- MX920 Specifications
  47
  - Operating Frequency Bands
    47
  - General
    48
  - Table 8-5 General Specifications
    48
  - Transmit
    49
  - Table 8-6 Transmit Specifications
    49
  - Receive
    50
  - Ancillaries
    50
  - Table 8-7 Receive Specifications
    50
  - Table 8-8 Ancilary Specifications
    50
- MX920 Model Number Configuration Guide
  51
- Table 8-9 MX920 Frequencies Bands
  51

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