Direction and intensity changes of radio waves
β Scribed by Charles C. Bidwell
- Publisher
- Elsevier Science
- Year
- 1926
- Tongue
- English
- Weight
- 257 KB
- Volume
- 201
- Category
- Article
- ISSN
- 0016-0032
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
This letter deals with the excitation of UHF radio wa¨es in tunnels. It is found that the antenna position and the antenna gain are two major factors that affect the excitation of radio wa¨es in tunnels. The antenna in the middle position and with high gain is preferable. Furthermore, the enhancemen
Measurements of the propagation of UHF radio wa¨es in two trapezoidal tunnels are reported. Values of propagation loss in dBr100 m are gi¨en. It is found that the propagation attenuates at least 900 MHz. In addition, a portable FM radio system operating at 900 MHz is tested in one tunnel. It achie¨e