Return to previous menu ==================== Rec. ITU-R BS.1195 - TRANSMITTING ANTENNA CHARACTERISTICS AT VHF AND UHF PART I - VHF and UHF transmitting antenna pattern calculation TABLE OF CONTENTS PART 1 TO ANNEX 1 - VHF and UHF transmitting antenna pattern calculation 1 Introduction 2 Geometrical representation of antenna radiation patterns 3 Radiation patterns and gain calculation 4 Radiating elements 4.1 Point sources 4.2 Arrays of point sources 4.3 VHF and UHF elementary radiators 5 Polarization 5.1 Elliptical polarization 5.2 Horizontal and vertical polarization 5.3 Slant polarization 5.4 Circular polarization 6 Antenna arrays 6.1 Broadside arrays 6.2 The amplitude and phase radiation patterns 6.3 Calculation of the radiation pattern of antenna arrays 6.4 VHF and UHF antenna arrays 7 Antenna systems 7.1 The antenna system pattern 7.2 Antenna system radiation patterns 7.3 Examples of antenna system pattern Practical aspects of VHF and UHF antennas PART 2 - Practical aspects of VHF and UHF antennas TABLE OF CONTENTS PART 2 TO ANNEX 1 - Practical aspects of VHF and UHF antennas 1 Introduction 2 Measurement of the characteristics of antenna systems 2.1 Considerations on the measurement site 2.2 Parameters to be measured 2.3 Methods of measurement 2.4 Measuring equipment 2.5 Measuring procedures 2.6 Data presentation 3 On-site measurements of the antenna system characteristics 3.1 Methods of measurement 3.2 Measuring equipment 3.3 Measuring procedure 3.4 Data presentation 4 Differences to be expected in practice between calculated and on-site measured performance of VHF and UHF antennas 4.1 Factors affecting the individual antenna and overall antenna system performance 4.2 Comparison of calculated and measured antenna parameters and radiation patterns PART 3 TO ANNEX 1 - VHF and UHF broadcasting antenna calculation software 1 Introduction 2 Program architecture APPENDIX 1 TO PART 3 - Antenna pattern basic calculation subroutine 1 Introduction 2 Theoretical basis 3 Calculation software realisation 3.1 Global variables 3.2 Calculation functions