Motorola GM160 Informazioni sul servizio - Pagina 3

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Anche per Motorola GM160: Informazioni sul servizio (34 pagine), Manuale d'uso (44 pagine), Manuale di servizio di base (46 pagine), Informazioni sul servizio (32 pagine), Manuale d'uso (44 pagine)

Motorola GM160 Informazioni sul servizio

Table of Contents

Chapter 1
1.0 GM140/GM160 Model Chart................................................................................1-1
2.0 GM340/GM360/GM380 Model Chart ...................................................................1-1
3.0 GM640/GM660/GM1280 Model Chart .................................................................1-2
4.0 Technical Specifications ......................................................................................1-3
Chapter 2
1.0 Introduction ..........................................................................................................2-1
2.0 UHF (403-470MHz) Receiver .............................................................................2-1
2.1 Receiver Front-End .......................................................................................2-1
2.2 Front-End Band-Pass Filters & Pre-Amplifier .................................................2-2
2.3 First Mixer and High Intermediate Frequency (IF)..........................................2-2
3.0 UHF (403-470MHz)
3.1 First Power Controlled Stage..........................................................................2-3
3.2 Power Controlled Driver Stage .......................................................................2-4
3.3 Final Stage......................................................................................................2-4
3.4 Directional Coupler.........................................................................................2-4
3.5 Antenna Switch...............................................................................................2-5
3.6 Harmonic Filter ...............................................................................................2-5
3.7 Power Control.................................................................................................2-5
4.0 UHF (403-470MHz) Frequency Synthesis ..........................................................2-6
4.1 Reference Oscillator .......................................................................................2-6
4.2 Fractional-N Synthesizer ................................................................................2-6
4.3 Voltage Controlled Oscillator (VCO) ...............................................................2-7
4.4 Synthesizer Operation ....................................................................................2-8
5.0 UHF (403-470MHz)
5.1 Power Controlled Stage..................................................................................2-9
5.2 Pre-Driver Stage .............................................................................................2-9
5.3 Driver Stage..................................................................................................2-10
5.4 Final Stage....................................................................................................2-10
5.5 Directional Coupler.......................................................................................2-10
5.6 Antenna Switch.............................................................................................2-10
5.7 Harmonic Filter .............................................................................................2-10
5.8 Power Control...............................................................................................2-11
Transmitter Power Amplifier (PA) 45 W
iii
....................2-3
....................2-9