Shortwave radio is broad between 3.50 and 29.7MHz. To what range of wavelengths does this correspond? Why do you suppose this part of the spectrum is called shortwave radio? | Homework.Study.com
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![Propagation of shortwave/HF radio waves [4] | Download Scientific Diagram](https://www.researchgate.net/publication/322571904/figure/fig2/AS:584134917378048@1516280025015/Propagation-of-shortwave-HF-radio-waves-4.png "Propagation of shortwave/HF radio waves [4] | Download Scientific Diagram")
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i) Which mode of propagation is used by shortwave broadcast services having frequency range from a few MHz upto 30 MHz? Explain diagrammatically how long distance communication can be achieved by this
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