Get ready for the FCC General Radiotelephone Operator License (GROL) exam. Study with flashcards and multiple choice questions, each with hints and detailed explanations. Prepare effectively for your licensing test!

Multiple Choice

Shipboard RADAR is most commonly operated in which band?

Shipboard radar operates in the microwave range, where higher frequency means a shorter wavelength. This lets you build a compact antenna on a ship and achieve sharp angular resolution, which is essential for identifying targets and navigation marks at practical ranges. In practice, most modern maritime radars use the SHF band, with the X-band portion around 8–12 GHz, which provides excellent resolution while still performing well in rain and sea clutter. Bands with longer wavelengths (VHF, UHF) would require much larger antennas to achieve the same detail, and the higher end of the spectrum (EHF) is more affected by atmospheric conditions and demands more complex equipment, making it less suitable for standard ship radar. So SHF is the band most commonly used for shipboard radar.

Shipboard radar operates in the microwave range, where higher frequency means a shorter wavelength. This lets you build a compact antenna on a ship and achieve sharp angular resolution, which is essential for identifying targets and navigation marks at practical ranges. In practice, most modern maritime radars use the SHF band, with the X-band portion around 8–12 GHz, which provides excellent resolution while still performing well in rain and sea clutter. Bands with longer wavelengths (VHF, UHF) would require much larger antennas to achieve the same detail, and the higher end of the spectrum (EHF) is more affected by atmospheric conditions and demands more complex equipment, making it less suitable for standard ship radar. So SHF is the band most commonly used for shipboard radar.