TEST SYSTEM FOR MOBILE FIELD-STRENGTH RECORDING

摘要

Planning Transmitter sites and transmitter power require accurate determination of wave propagation especially for the upcoming mobile radio networks such as GSM, Radio paging, DAB, etc. , which will involve the uneven reception of field strength in a moving vehicle . In urban areas, in particulars, there are gaps in the coverage giving rise to insufficient or no reception at all due to superposition of many waves produced by diffraction , scattering, reflection, radio shadow and multipath reception .