Relative field strength of VHF/UHF horizontally polarized waves in 5 to 100-meter range of propagation
Abstract
The relative field strength of VHF/UHF horizontally polarized waves was theoretically and experimentally investigated. The waves were transmitted through a dipole antenna system for which the distance between a transmitting and a receiving antenna was from five to 100 meters; both antennas were placed on two meters high plane ground. The calculations utilized the site attenuation calculation method. Measurements were carried out at 40 MHz, 150 MHz, and 450 MHz at a test site consisting of flat wet ground about 400 meters long and 500 meters wide. Good agreement was obtained between theoretical and experimental values, within + or - 1.5 dB at each frequency.
- Publication:
-
Radio Research Laboratory, Journal
- Pub Date:
- November 1982
- Bibcode:
- 1982RaRLJ..29..201K
- Keywords:
-
- Electromagnetic Fields;
- Field Strength;
- Polarization Characteristics;
- Radio Range;
- Ultrahigh Frequencies;
- Very High Frequencies;
- Dipole Antennas;
- Ground Effect (Communications);
- Radio Attenuation;
- Signal Measurement;
- Communications and Radar