【資料名稱】：radio mobile- Program Operating Guide

【資料作者】：Roger Coude

【資料日期】：2011

【資料語言】：英文

【資料格式】：PDF

【資料目錄和簡介】：

Table of Contents
1 Copyright and Author – Radio Mobile ............................................................. 1
2 Copyright and Author – Radio Mobile User Guide .......................................... 1
3 Contributors and Internet Links – Radio Mobile.............................................. 1
4 Radio Mobile Program – Introduction ............................................................. 2
5 Radio Mobile Program – Description .............................................................. 2
6 Radio Propagation and Coverage Basics ....................................................... 3
6.1 Radio Receiver Operation ........................................................................ 4
6.2 The deciBel (dB) ...................................................................................... 4
6.3 Decibel Mathematics ............................................................................... 5
6.4 deciBel and Radio Standards .................................................................. 5
6.5 Propagation Modes .................................................................................. 6
6.6 ‘K’ factor ................................................................................................... 7
7 Propagation and Signal Loss.......................................................................... 7
7.1 Free Space loss ....................................................................................... 8
7.2 Diffraction Loss ........................................................................................ 8
7.3 Total Loss Between Sites ........................................................................ 8
8 Radio Wave Propagation ............................................................................. 10
8.1 Fresnel Zones ........................................................................................ 10
8.2 Fresnel Zone Radius and Earth Clearance ............................................ 12
8.3 Fresnel Zone Numbering ....................................................................... 14
8.4 Fresnel Zone 1 (F1) ............................................................................... 15
8.5 Fresnel Zone 2 (F2) ............................................................................... 15
8.6 Fresnel Zone 3 (F3) ............................................................................... 15
8.7 Fresnel Zone Effect ............................................................................... 15
8.8 Specular Reflection ................................................................................ 16
8.9 Inter Symbol Interference....................................................................... 17
9 Path Reliability – Point to Point Radio .......................................................... 18
9.1 Radio Path Fade Margin ........................................................................ 18
9.2 Point to Point Reliability ......................................................................... 19
9.3 Radio Coverage Probability ................................................................... 20
10 Geographic Coordinate Systems .............................................................. 20
10.1 Earth Reference Points – Map Datums .............................................. 21
10.2 Latitude and Longitude ....................................................................... 22
10.3 Maidenhead Locator System (QRA – Amateur Radio) ....................... 23
10.4 Universal Transverse Mercator (UTM) ............................................... 24
10.5 Military Grid Reference System (MGRS) ............................................ 25
10.6 Geosys ............................................................................................... 26
11 Elevation Data and Elevation Maps .......................................................... 26
11.1 Digital Terrain Elevation Data (DTED) ................................................ 27
11.2 Shuttle Radar Topography Mission (SRTM) ....................................... 27
11.3 Using downloaded Elevation Data ...................................................... 28
12 Radio Mobile Program Installation ............................................................ 29
13 First Time Program Start up Options ......................................................... 30