RF Technology R150 Instrukcje Operacyjne Pobierz pdf (Strona 2)

Page 2 RF Technology T70/T150

CONTENTS CONTENTS

Contents

1 Operating Instructions 4

1.1 Front Panel Controls and Indicators 4

1.1.1 PTT 4

1.1.2 Line 4

1.1.3 PWR LED 4

1.1.4 TX LED 4

1.1.5 ALARM LED 5

1.1.6 ALC LED 5

1.1.7 REF LED 5

1.1.8 TEST MIC 5

2 Transmitter Internal Jumper Options 6

2.1 JP2: EPROM type 6

2.2 JP3: Dc Loop PTT 6

2.3 JP4: Audio Input Source 6

2.4 JP5: 600 ? Termination 6

2.5 JP6: Input Level Attenuation 7

2.6 JP7: Audio Response 7

2.7 JP8: Sub-audible Tone source 7

2.8 JP9/10/11: dc Loop Configuration 7

2.9 JP16: Direct Digital Input (Rev 4 or higher) 7

2.10 JP17: Bypass Low Pass Filter (Rev 4 or higher) 8

2.11 JP19: Alarm Output (Rev 4 or higher) 8

2.12 JP22: Use Tone- as a Direct Digital Input (Rev 4 or higher) 8

2.13 JP23: Connection of DMTX Board (Rev 4 or higher) 8

3 Transmitter I/O Connections 9

3.1 25 Pin Connector 9

3.2 Rear Panel Connectors 10

4 Channel and Tone Frequency Programming 11

5 Circuit Description 12

5.1 VCO Section 12

5.2 PLL Section 12

5.3 Power Amplifier 13

5.4 Temperature Protection 13

5.5 600Ω line Input 13

5.6 Direct Coupled Audio Input 13

5.7 Local Microphone Input 14

5.8 CTCSS and Tone Filter 14

5.9 Audio Signal Processing 14

5.10 PTT and DC Remote Control 15

5.11 Micro-processor Controller 16

5.12 Voltage Regulator 16

6 Field Alignment Procedure 17

6.1 Standard Test Conditions 17

6.2 VCO Alignment 17

6.3 TCXO Calibration 18

6.4 Modulation Balance 18

1 2 3 4 5 6 7 ... 27 28

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