Quantum Systems VECTOR - Page 95

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Weather Inuence
Water particles in the air cause diffraction, reection and scattering of radio waves and hence attenuation. Therefore, it should
be noted, that in misty conditions, high humidity or rain, a reduction of signal strength needs to be accounted for.
Noise
Noise is considered unwanted radio frequency electrical signals. The frequency, magnitude and source of noise can differentia-
te, yet commonly reduce the signal-to-noise ratio and thus the received signal of a transmission signal.
Imagine trying to converse with your partner in a busy restaurant, but your partner is sitting on the other side of the room. You
either need to raise your voice or silence the other people. Both ways are rather tedious. In the radio domain, a common way
to evade noise is to switch frequency or avoid noise polluted frequencies. In our restaurant domain, this would mean to either
speak in a very high pitched or very baritone voice.
Noise pollution can have different sources, but most common are the unmanaged frequency bands, such as the Wi-Fi (2.4 GHz)
or comparable bands (833MHz, 500MHz). But heavy electric machinery (generators, electric motors, big DC/DC converters) can
also create electromagnetic interference that creates noise. Try to stay clear of noise polluted frequencies. The Silvus radio is
capable of switching frequencies.
Silvus Handling
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