Page 16 - NOISE IN SYSTEM COMMUNICATION
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EXTERNAL NOISE
External Noise is the noise which is generated outside the device
or circuit system. External noises are somewhat uncontrollable
2 Extra-Terrestrial/ Space Noise
Space noise is divided into two categories;
i) Solar noise
ii) Cosmic noise
Solar Noise
Solar noise is an electrical noise
generated from the sun heat.
This is continuous radiation from
sun.
For example, a large body of very
high temperature (6000 °C) will
radiate a spectrum of electrical
energy that takes the form of noise
and spreads throughout the whole
radio communication spectrum.
Source: canva.com
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