The Super High Frequency (SHF) band of the electromagnetic spectrum is defined as frequencies ranging from 3 GHz to 30 GHz. The relationship between wavelength ($\lambda$), speed of light ($c \approx 3 \times 10^8$ m/s), and frequency ($f$) is $\lambda = c/f$. Calculating the wavelengths for the band limits: - For 3 GHz ($3 \times 10^9$ Hz), $\lambda = (3 \times 10^8 \text{ m/s}) / (3 \times 10^9 \text{ Hz}) = 0.1 \text{ m} = 10 \text{ cm}$. - For 30 GHz ($30 \times 10^9$ Hz), $\lambda = (3 \times 10^8 \text{ m/s}) / (30 \times 10^9 \text{ Hz}) = 0.01 \text{ m} = 1 \text{ cm}$. Thus, the wavelength range for SHF is from 1 cm to 10 cm.
What is the wavelength of Super High Frequency (SHF) especially used in radar and satellite communication?
Asked in WBCS Main Paper 4 2019 · Topic: Data Communication and Transmission Modes (Unguided Transmission Media (Radio Waves, Microwaves, Infrared))
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