Question
Draw a schematic diagram showing the (i) ground wave (ii) sky wave and (iii) space wave propagation modes for EM waves.
Write the frequency range for each of the following:
(i) Standard AM broadcast
(ii) Television
(iii) Satellite communicationSolution
The diagram below illustrates the various modes of propagation for EM waves:
i) Standard AM broadcast used frequency of range 540-1600 kHz
ii) A frequency range of 54–890 MHz is used by television sets.
iii) Satellite communication uses 5.925–6.425 GHz as uplink frequency and 3.7–4.2 GHz downlink frequency.
