What is the SHF frequency range?

The correct frequency range for Super High Frequency (SHF) is indeed from 3 to 30 GHz. This range is part of the electromagnetic spectrum used for various wireless communications, satellite transmissions, radar applications, and microwave links.

SHF is significant because it provides capabilities for bandwidths that can support high data rates and is commonly utilized in modern electronic communications, including wireless technologies and certain types of broadband services. Frequencies in this range are also less prone to interference from atmospheric factors compared to lower frequencies, making them ideal for high-frequency communications.

The other ranges provided do not correspond to SHF. For example, the range of 30 to 300 GHz actually represents the EHF (Extremely High Frequency), while the ranges of 300 to 3000 MHz (which corresponds to 0.3 to 3 GHz) and 3 to 30 kHz are much lower frequencies, falling under the UHF and LF/AF bands, respectively. This context clarifies why the selected range is recognized as SHF in the electromagnetic spectrum.