Propagation

Explanation of question 11

Skywave propagation is the usual mode

  1. below 2MHz
  2. between 1 and 30MHz
  3. between 30 and 50MHz
  4. above 50MHz

The answer is :- 2 Skywave propagation means ionospheric wave propagation. The solution to 9 (above) gives the approximate frequency range.

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