Codan X-2 - Default Chapter; Table of Contents

Publication No: 15-02047
Table of Contents
1 Introduction........................................................................................................1-1
1.1 Purpose...........................................................................................................1-1
1.2 How this manual is organised..........................................................................1-1
1.3 Conventions....................................................................................................1-2
1.4 Related Documents.........................................................................................1-2
1.5 Overview ........................................................................................................1-2
1.6 Specifications..................................................................................................1-3
1.6.1 General Specifications.................................................................1-3
1.6.2 Receiver Specifications...............................................................1-5
1.6.3 Transmitter Specifications...........................................................1-6
2 Brief Description............................................................................................2-1
2.1 General ...........................................................................................................2-1
2.2 Control and Switching.....................................................................................2-2
2.3 Synthesiser......................................................................................................2-2
2.4 Receive Path ...................................................................................................2-3
2.5 Transmit Path..................................................................................................2-4
3 Operating Instructions...............................................................................3-1
4 Technical Description................................................................................4-1
4.1 Control and Supply Voltages...........................................................................4-2
4.1.1 Power.........................................................................................4-2
4.1.2 Supply Voltages .........................................................................4-2
4.1.3 Receive/Transmit Switching........................................................4-3
4.2 Receiver..........................................................................................................4-4
4.2.1 Input Filters................................................................................4-4
4.2.2 First Mixer..................................................................................4-4
4.2.3 45 MHz Roofing Filter................................................................4-4
4.2.4 Second Mixer .............................................................................4-4
4.2.5 Noise Limiter..............................................................................4-5
4.2.6 455 kHz Filter and IF Amplifier ..................................................4-5
4.2.7 Automatic Gain Control..............................................................4-6
4.2.8 Mute...........................................................................................4-7
4.2.9 Volume Control and Audio Amplifier .........................................4-8