A signal at 250 GHz falls in which frequency range?

A signal at 250 GHz falls in which frequency range?

• A. SHF
• B. EHF
• C. VHF
• D. MF

Answer: (B)

Understanding how frequency bands are defined helps here. Each band is set by a range in hertz, and 250 GHz falls between 30 GHz and 300 GHz. That places it in the Extremely High Frequency band. The upper boundary of the SHF band is 30 GHz, so 250 GHz is beyond SHF. Lower bands like VHF and MF sit in the tens to hundreds of MHz or kHz ranges, far below 250 GHz. This part of the spectrum is often called the millimeter-wave region due to its wavelength, and it’s used for high-capacity wireless links, radar, and some satellite applications.

Understanding how frequency bands are defined helps here. Each band is set by a range in hertz, and 250 GHz falls between 30 GHz and 300 GHz. That places it in the Extremely High Frequency band. The upper boundary of the SHF band is 30 GHz, so 250 GHz is beyond SHF. Lower bands like VHF and MF sit in the tens to hundreds of MHz or kHz ranges, far below 250 GHz. This part of the spectrum is often called the millimeter-wave region due to its wavelength, and it’s used for high-capacity wireless links, radar, and some satellite applications.