Codan-radio Radio Repeater Systems Training Guide Bedienungsanleitung Seite 14
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TRAINING GUIDE | RADIO REPEATER SYSTEM
Chapter 1: Repeater System BasicsPage 6
To determine if the site you have chosen will cover the required area, a coverage map should be drawn
for that site. A coverage map shows the areas that the proposed radio system will effectively cover
with line-of–sight paths. Mobile coverage maps are a bit of an “art form” because you have to use your
imagination. In spite of this, they end up being quite accurate, and are much less expensive than a fi eld
survey. In addition, if more than one site is required, prepare profi les of the path between the sites.
A coverage map and path profi le are shown in Figure 1-5. Detailed information about drawing coverage
maps is available in appendix A, and detailed information on path profi les can be found in Appendix B.
Figure 1-5: Coverage Map and Path Profi le
Office
2020'
3000'
4000'
1000'
Obstructions
Hills Not Obstructing.
Signal O.K.
Line-of-sight
Elevation
Plan View
1000'
2000'
3000'
3000'
4000'
2000'
2000'
Line-of-sight (50 km)
Phillips Creek
Office
Obstructed Path
Portable
Poor or no Signal
- Radio Repeater 1
- Page ii 4
- Page iii 5
- Page iv 6
- Contents 7
- Page vi 8
- INTRODUCTION 9
- Repeater 10
- Portable 10
- Power and telephone lines 13
- Road access 13
- Multi-user mountain-top 13
- Elevation 14
- Plan View 14
- DETERMINING CONFIGURATION 17
- LINKED REPEATER SYSTEMS 19
- OTHER CONFIGURATIONS 23
- REPEATER / BASE STATION 25
- ANTENNAS 28
- Figure 3-1: Antenna Patterns 29
- Typical Horizontal Radiation 31
- BEAM ANTENNA 31
- POWER SUPPLIES 33
- SOLAR SIZING WORKSHEET 35
- ACCOMMODATION 36
- Figure 3-5: Building Types 37
- MAINTENANCE 40
- LIGHTNING PROTECTION 41
- INTERFERENCE 42
- 4/3 EARTH CURVATURE 49
- PATH CALCULATION WORKSHEET 55
- Line-Of-Sight Path 57
- REMOVE WHEN TRANSMITTING 59
- Mechanical Specifications 64
- APPENDIX I: BLANK WORKSHEETS 75
- REPEATER SITE DATA FORM 76
- PATH PROFILE GRAPH 80
- APPENDIX J: GLOSSARY OF TERMS 81
Rigel-systems Dispositifs optiques manuels d'utilisation
La liste de Rigel-systems Dispositifs optiques produits contient 19 manuels d'utilisation pour les modèles 19. Tous les guides d'utilisation en format pdf peuvent être téléchargés ou consultés en ligne.
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