Motorola MAG ONE

Table of Contents
Document History..............................................................................................i
Safety Information ........................................................................................... iii
Section 1 INTRODUCTION
1.0 Scope of Manual....................................................................................................1-1
2.0 Warranty and Service Support...............................................................................1-1
2.1 Warranty Period and Return Instructions ........................................................1-1
2.2 After Warranty Period......................................................................................1-2
2.3 Piece Parts......................................................................................................1-2
2.4 Technical Support ...........................................................................................1-2
2.5 Further Assistance From Motorola..................................................................1-2
3.0 Radio Model Information........................................................................................1-3
4.0 Radio Features ......................................................................................................1-4
Section 2 THEORY OF OPERATION
1.0 Overview................................................................................................................2-1
1.1 Purpose...........................................................................................................2-1
1.2 General Description.........................................................................................2-1
2.0 Receiver System....................................................................................................2-1
2.1 Front-End ........................................................................................................2-1
2.2 First Mixer........................................................................................................2-2
2.3 IF Amplifier ......................................................................................................2-2
2.4 Squelch ...........................................................................................................2-2
3.0 Transmitter System and PLL Synthesizer .............................................................2-3
3.1 TX Power Stage ..............................................................................................2-3
3.2 Antenna Switch ...............................................................................................2-3
3.3 Low Pass Filter................................................................................................2-3
3.4 Auto-Power Control .........................................................................................2-4
3.5 PLL Synthesizer ..............................................................................................2-4
4.0 Audio and Control Circuit.......................................................................................2-5
4.1 RX Audio .........................................................................................................2-5
4.2 RX Sub-Audible Decode Circuit ......................................................................2-6
4.3 TX Audio..........................................................................................................2-6
4.4 TX Sub-Audible Encode Circuit.......................................................................2-6
4.5 Microprocessor................................................................................................2-6