<p class="isSelectedEnd">The GNSS spectrum refers to the radio frequencies used by satellite navigation systems such as GPS, Galileo, GLONASS, and BeiDou. These signals allow GNSS receivers to calculate accurate position, navigation, and timing information. Different constellations operate on multiple frequency bands, which can help receivers reduce ionospheric errors and improve positioning accuracy. Multi-frequency GNSS receivers are especially useful in surveying, aviation, agriculture, and other applications requiring reliable and precise location data.

Understanding GNSS frequency bands is important for anyone working with satellite navigation technology, as signal frequency can influence receiver performance, accuracy, and resistance to atmospheric effects.