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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