DRAFT D
TNM-M-E-0001 Page iii
Table of Contents
1. INTRODUCTION............................................................................................................1
1.1 GENERAL........................................................................................................................1
1.2 SCOPE ...........................................................................................................................1
1.3 DESCRIPTION..................................................................................................................1
1.4 PRODUCT VARIANTS AND FACILITIES ...............................................................................2
1.5 GLOSSARY......................................................................................................................5
2. SERVICE PHILOSOPHY ...............................................................................................6
2.1 SERVICE CONCEPT .........................................................................................................6
2.2 WARRANTY.....................................................................................................................6
2.2.1 Service within and out of warranty ........................................................................6
2.2.2 Ancillary Items.......................................................................................................6
2.3 SOFTWARE POLICY .........................................................................................................6
2.4 ADJUSTMENT AND ALIGNMENT.........................................................................................7
2.5 TECHNICAL SPECIFICATION..............................................................................................8
2.5.1 General .................................................................................................................8
2.5.2 Transmitter............................................................................................................9
2.5.3 Receiver..............................................................................................................10
2.5.4 Signalling.............................................................................................................11
2.5.5 Environmental.....................................................................................................12
3. TECHNICAL DESCRIPTION .......................................................................................13
3.1 RECEIVER.....................................................................................................................13
3.1.1 Front End Filters and RF Amplifier......................................................................13
3.1.2 First Mixer and IF Section...................................................................................13
3.1.3 Quadrature Demodulator ....................................................................................15
3.1.4 Receiver Audio Processing.................................................................................15
3.2 TRANSMITTER...............................................................................................................15
3.2.1 Drivers and PA Stages........................................................................................15
3.2.2 Power Control .....................................................................................................17
3.2.3 Antenna Changeover and Harmonic Filter..........................................................17
3.2.4 Transmitter Audio Processing.............................................................................17
3.3 FREQUENCY SYNTHESISER............................................................................................19
3.3.1 General ...............................................................................................................19
3.3.2 PLL......................................................................................................................19
3.3.3 VCO ....................................................................................................................19
3.3.4 Negative Bias Generator and Loop Filter............................................................19
3.3.5 Phase Modulator.................................................................................................19
3.3.6 Reference Oscillator ...........................................................................................20
3.4 CONTROL .....................................................................................................................20
3.4.1 DSP and FPGA...................................................................................................20
3.4.2 DSP Clock Oscillator...........................................................................................22
3.5 MEMORY ......................................................................................................................22
3.5.1 Multiplexer...........................................................................................................22
3.6 POWER SUPPLIES .........................................................................................................22
3.6.1 Power On Function .............................................................................................22
3.6.2 Power Supplies ...................................................................................................23
4. ALIGNMENT ................................................................................................................25
4.1 TEST EQUIPMENT ....................................................................................................25
4.2 TEST SET UP .................................................................................................................27
4.2.1 COMMS Set up...................................................................................................28
4.2.2 Radio Preparation ...............................................................................................29