Codan-radio MT-4E Analog and P25 Digital - Maintenance Guide Bedienungsanleitung Seite 7
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MT-4E ANALOG & P25 DIGITAL RADIO SYSTEMS | MAINTENANCE GUIDE
Page v
Contents
Chapter 1: Codan Radio Maintenance ...................................1
Introduction to Codan MT-4E .....................................................................1
Recommended Maintenance Schedule .....................................................2
Repair Note ................................................................................................2
ESD - Electrostatic Discharge ....................................................................2
Audio and Carrier Levels Reference ..........................................................3
Audio Levels ...................................................................................................3
Carrier Levels .................................................................................................3
Chapter 2: Installation ............................................................5
Installation of Codan Subracks ..................................................................5
Chapter 3: Test Equipment and Spares .................................9
Recommended Test Equipment .................................................................9
Recommended Spares ............................................................................ 10
Recommended Maintenance Items ......................................................... 11
Chapter 4: Radio Site Survey .............................................. 13
Introduction to a Radio Site Survey .........................................................13
Codan Radio Site Checklist and Inventory ....................................................13
Preparation for a Site Survey ...................................................................14
Exterior Site Survey ................................................................................. 15
Interior Site Survey ..................................................................................15
Radio Site Inventory .................................................................................15
Radio System Testing .............................................................................. 16
Departure Checklist .................................................................................16
- MT-4E Analog and 1
- P25 Digital 1
- Radio Systems 1
- Codan MT-4E 3
- Analog and 3
- Page ii 4
- Page iii 5
- Page iv 6
- Contents 7
- Page vi 8
- INTRODUCTION TO CODAN MT-4E 9
- REPAIR NOTE 10
- ESD - ELECTROSTATIC DISCHARGE 10
- Audio Levels 11
- Carrier Levels 11
- CHAPTER 2: INSTALLATION 13
- Chapter 2: InstallationPage 6 14
- Chapter 2: InstallationPage 8 16
- RECOMMENDED TEST EQUIPMENT 17
- RECOMMENDED SPARES 18
- RECOMMENDED MAINTENANCE ITEMS 19
- CHAPTER 4: RADIO SITE SURVEY 21
- PREPARATION FOR A SITE SURVEY 22
- EXTERIOR SITE SURVEY 23
- INTERIOR SITE SURVEY 23
- RADIO SITE INVENTORY 23
- RADIO SYSTEM TESTING 24
- DEPARTURE CHECKLIST 24
- Radio Service Software (RSS) 27
- Control Cards 27
- Audio Connections 29
- SYSTEM REGULATOR TESTING 30
- RECEIVER TESTING 31
- Audio Distortion: 32
- Reference Sensitivity: 33
- Squelch: 33
- Audio Level: 34
- Receiver Digital Testing 36
- Computer running RSS 38
- USB from 38
- Computer to Rx 38
- RECEIVER 40
- GEN T/R ANT 40
- SYSTEM REGULATOR 40
- -4E Test Sheet 44
- TRANSMITTER TESTING 45
- RF Power: 47
- Deviation Level: 48
- Transmitter CTCSS Testing 50
- Transmitter Digital Testing 53
- Computer to Tx 55
- SYSTEM TESTING 59
- Demodulated Audio Frequency: 60
- Distortion: 60
- Duplex Digital Testing 62
- Unit ID (SID): 64
- Emergency Bit (EMG): 64
- Algorithm ID: 64
- EQUIPMENT 66
- CONNECTED 67
- Receiver Desense 68
- LINK ANTENNA 69
- Spurious Signals over the Air 70
- CHAPTER 7: BLANK WORKSHEETS 71
- Radio Site Inventory 72
- MT-4E Radio System Test Sheet 73
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