![]() The fogpl function applies the ITU cloud and fog attenuation model which is valid only for frequencies at 10-1000 GHz. The fogpl function computes Fog/Cloud attenuation using Distance, Frequency, Fog/Cloud temperature and Fog/Cloud water density. The rainpl function applies the International Telecommunication Union (ITU) rainfall attenuation model which applies only for frequencies at 1-1000 GHz. Rain attenuation is computed by the rainpl function using Distance, Frequency, Rain rate, Elevation and Polarization tilt. This loss is represented by Free space path loss which is computed using the fspl function, Distance, and Frequency. The transmitted signal power is diminished by the geometric spreading of the wavefront. Typically, EIRP is quoted for antenna boresight, which is defined as the axis of maximum radiation. ![]() ![]() Tx EIRP, which represents transmitted equivalent isotropically radiated power (EIRP), is the amount of power that would have to be radiated by an isotropic antenna to produce the equivalent power density observed from the actual antenna in a specified direction. Tx EIRP is a function of the Amplifier power, Amplifier backoff loss, Feeder loss, Radome loss, Other losses, and Tx Antenna gain input parameters. Tx Antenna gain and Rx Antenna gain are functions of the corresponding Antenna diameter, Antenna efficiency, and Frequency input parameters. Distance and Elevation are computed from the Latitude, Longitude and Altitude input parameters for the transmitter and receiver. ![]()
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