I would like to shorten the wire of the receiver, can I? By how much?
How many times have we heard or we have set ourselves this question ... the trick to see if and how we can cut the wire antenna, is solved with a number, the Lambda wave, which is nothing but the amplitude of a radio wave.
Clearly, however, the radio wave is so much talk about fractions Frandi wave and if we are to 1 / 2, 1 / 4, 1 / 8, 1 / 16 or 1 / 32, vuoldire that we are on the air, otherwise may have problems.
must be said that the higher the fraction of a wave, the smaller the chance of radio interference, so the best fraction is 1 / 2 while the worst 1 / 32.
I attach a excel file, however, that I had done years ago talking with a fellow engineer. in telecommunications ... here there is also the calculation of the charging time of a battery pack.
Click on the link to download the excel file that allows you to calculate the frequency and also the knowledge to know how the charging time of battery packs Download
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