- ページ 3

双方向ラジオ Motorola GP seriesのPDF サービス情報をオンラインで閲覧またはダウンロードできます。Motorola GP series 24 ページ。 Professional radio
Motorola GP series にも：サービスマニュアル (26 ページ), サービス情報 (31 ページ), サービス情報 (43 ページ), サービス情報 (30 ページ), ユーザーマニュアル (16 ページ), マニュアル (30 ページ)

Chapter 1

1.0 GP340/GP380 Model Chart .................................................................................1-1

2.0 Technical Specifications ......................................................................................1-2

Chapter 2

1.0 Lowband Transmitter ...........................................................................................2-1

1.1 Power Amplifier (PA) ......................................................................................2-1

1.2 Antenna Switch...............................................................................................2-2

1.3 Harmonic Filter ...............................................................................................2-2

1.4 Antenna Matching Network ............................................................................2-2

1.5 Power Control Integrated Circuit (PCIC) ........................................................2-2

1.6 Temperature Cut Back Circuit ........................................................................2-2

2.0 Lowband Receiver ...............................................................................................2-3

2.1 Receiver Front-End ........................................................................................2-3

2.2 Receiver Back-End.........................................................................................2-4

2.3 Automatic Gain Control (AGC) .......................................................................2-5

2.4 Frequency Generation Circuit.........................................................................2-5

3.0 Synthesizer ..........................................................................................................2-6

4.0 Voltage Control Oscillator (VCO) .........................................................................2-7

4.1 Receive VCO..................................................................................................2-7

4.2 Transmit VCO.................................................................................................2-7

4.3 Buffer ..............................................................................................................2-7

4.4 Diplexer and Output Filters.............................................................................2-7

4.5 Prescalar Feedback........................................................................................2-7

Chapter 3

1.0 Receiver (Sheet 1 of 2) ........................................................................................3-1

2.0 Receiver (Sheet 2 of 2) ........................................................................................3-2

3.0 Transmitter...........................................................................................................3-3

4.0 Synthesizer ..........................................................................................................3-4

5.0 Voltage Controlled Oscillator ...............................................................................3-5

Chapter 4

LOWBAND SCHEMATICS

1.0 Allocation of Schematics and Circuit Boards .......................................................4-1

1.1 Controller Circuits ...........................................................................................4-1

2.0 Schematics ..........................................................................................................4-3

3.0 Parts List ............................................................................................................4-12

iii

Table of Contents