(2) The 'Unusual application of the TANT program' MS Excel In here the user can edit T_earth, T_sky, RX NF and bandwidth while the numbers for System G/T adapt. UR5EAZ produced a second interactive MS Excel table. This table holds 50, 144 and 432 MHz Yagi-Uda antennasĭownload UR5EAZ's MS Excel 'RRF_dB_october.xls' (the file contains step-by-step instructions) (1) The 'Ratio of Radiation Power into Rear Semi-Sphere to Radiation Power into Sphere' MS Excel Former T_sky now is the Brightness Temperature of the sphere that lies in beam direction, while former T_earth becomes the Brightness Temperature of the rear sphere. Useful for studying its suitability for terrestrial weak signal communication can be derived. With this change a number of antenna parameters But what if we tilt the Yagi by 90 degrees of elevation in a theoretical experiment? Now former T_sky and T_earth become 'T_front_boresight_of beam' and 'T_rear_lobes'. Here are 2 applications of TANT produced by Vladimir, UR5EAZįor any standard application of TANT at zero elevation T_antenna = (Tsky + Tearth) / 2 so that independently of the antennas pattern,Ī constant T_ant is the outcome.
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