11/14/2022 0 Comments Spectrum analyzer hackrf one mac![]() ![]() ![]() I am applying in such situations the highest values yet never I may swear it is correct to do so. Cant it be that free air impedance is so shaky, no! Interferences? From where if 400m high tower stands 400m afar and nearest object except tiny bushes and grass are 1 km afar. More over - what is the effect that I am making step forward and it shows say 100 V/m 0,2 A/m 1 W/m2, step another step forward and it shows 20 V/m 0,01 A/m and 0,001 W/m2, step one more forward and get the 500 V/m 1 A/m and 50 W/m2. And difference may happen even 10 or 100 fold. More over, why them are not com-passed with brilliant theoretical formula V/m*A/m=W/m2 ? Never come in pass. So, why it not coresponds to Ohm`s law V/m divide to A/m get 377 Ohms. It has been available from all the usual outlets for a while now either as a. Thus I am using a cheap-end 3-axis "ball-head" device for measuring and SDA only for research what is the reason of situation.Ĭannot stand to keep silent and ask the full scale dumb question - did You cached that around high power radio towers, near zone are very high A/m figures, instead after of some 1/2 km to 1 km prevalates the V/m and practically rare and only for small transmitters the W/m2 are overstepped. The LTDZ spectrum analyser on the bench today covers 35 MHz to 4.4 GHz, and has a USB interface and tracking source. BUT, it gives only relative values instead of absolute, however home owners are interested to know the absolute figures (is normative overstepped or not). I dont know any soft able for expanding a range let in one screen stays compressed all frequencies. How did You managed the main terrible SDA trouble - that only possible way to scan all range from MHz to GHz is possible by "drag it", thus the fastest is hour. ![]()
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