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Marti Electronics SR-20C, Руководство пользователя

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Marti Electronics SR-20C Скачать руководство пользователя страница 5

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TABLE OF CONTENTS

Introduction

1

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Specifications & Ordering

4

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Unpacking & Inspecting

8

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Installation

9

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Antennas

15

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Operation

17

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System Performance Tests

21

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Theory of Operation

23

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Test Equipment

25

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Tools For Alignment

25

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Tune–up and Adjustments

26

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Schematic and Assembly Drawings

30

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Содержание SR-20C

Страница 1: ...MARTI ELECTRONICS STL RECEIVER MODELS SR 20M SR 20C October 2003 IM No 597 8105...

Страница 2: ...stments as Marti may obtain from the supplier thereof c This warranty does not apply to equipment that has been altered improperly handled or damaged in any way The Seller is in no event liable for co...

Страница 3: ...and does not represent a commitment on the part of Marti Electronics Marti Electronics may make improvements and or changes in this manual or in the product described herein at any time This product...

Страница 4: ...anual supports both the SR 20M and SR 20C STL receivers for all standard frequency bands The manual will be revised as new frequency bands become available Manual Part Numbers Kit Binder And Manual 97...

Страница 5: ...cifications Ordering 4 Unpacking Inspecting 8 Installation 9 Antennas 15 Operation 17 System Performance Tests 21 Theory of Operation 23 Test Equipment 25 Tools For Alignment 25 Tune up and Adjustment...

Страница 6: ...INTRODUCTION See the SPECIFICATIONS ORDERING section for a listing of available frequency ranges SR 20M MONO STL RECEIVER SR 20C COMPOSITE STL RECEIVER...

Страница 7: ...for the monitoring of signal level subcarrier level power supply voltage and program output level parameters SR 20C units are also equipped with a multimeter and meter select switch for the monitoring...

Страница 8: ...nal 10 to 14 VDC source Frequency synthesized dual stage RF converter module with Automatic Frequency Control AFC Front panel signal attenuation control used to minimize IMD products Front panel squel...

Страница 9: ...evel 10 to 11 dBm Output Impedance Balanced 600 Ohms terminal strip 15 pin D Type Unbalanced 600 Ohms BNC Sensitivity 3 microvolts for 50 dB signal to noise 10 microvolts for 60 dB signal to noise 100...

Страница 10: ...tion 0 2 or less 20 Hz to 15 kHz demodulated deemphasized low pass filtered left or right channel Spurious Response 90 dB RF Input Impedance 50 ohms RF Connector Type N Female Monophonic Output Level...

Страница 11: ...6 Weight Net 7 8 pounds 3 5 kilograms Dimensions 3 5 in high x 19 in wide x 15 in deep 8 9 cm high x 48 3 cm wide x 38 1 cm deep Regulatory FCC DOC...

Страница 12: ...20M Mono STL Receiver 430 To 480 MHz Single Channel 200 kHz Receive Bandwidth 110 220VAC 50 60 Hz Operation SR20M 450 125 SR 20M Mono STL Receiver 430 To 480 MHz Single Channel 125 kHz Receive Bandwid...

Страница 13: ...oughly inspect for concealed damage If damage is discovered stop further unpacking and request immediate inspection by local agent of carrier A written report of the agent s findings with his signatur...

Страница 14: ...ble Shielded Low Loss RG 214 U jumper is recommended 2 Balanced program audio output is located at accessory circuit board connector J2 1 and J2 2 refer to Figure 2 The output level can be adjusted fr...

Страница 15: ...10 FIGURE 1 SINGLE DUAL SR 20M SYSTEM 597 8105 1 COPYRIGHT 2003 MARTI ELECTRONICS INC...

Страница 16: ...11 FIGURE 2 ACCESSORY REMOTE CONNECTIONS 597 8105 2 COPYRIGHT 2003 MARTI ELECTRONICS INC...

Страница 17: ...to 14V external dc supply If dc operation is required refer to Figure 2 and connect 1 the positive wire to J2 13 and 2 ground to J2 14 6 The receiver is equipped with a rear panel ground terminal Conn...

Страница 18: ...13 FIGURE 3 SR 20C SYSTEM DIAGRAM 597 8105 8 COPYRIGHT 2003 MARTI ELECTRONICS INC...

Страница 19: ...0 5 Volts peak to peak Subcarrier frequencies may be between 85 kHz and 110 kHz CAUTION IF DC OPERATION IS REQUIRED DO NOT APPLY MORE THAN 14V TO THE UNIT 6 Ensure the receiver rear panel ON OFF switc...

Страница 20: ...g For your safety use extreme caution when installing antennas Keep away from power lines Personnel must not be near the antenna when radiating Locate antenna as far as possible from people and equipm...

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