Understanding the Importance of L5 Frequency in GNSS

What is the L5 frequency? The L5 frequency, at 1176.45 MHz (wavelength 25.48 cm), is one of the three primary frequencies used by GNSS for signal transmission. It is designed to provide higher accuracy and better signal quality than the older L1 and L2 frequencies. The L5 signal includes advanced features such as a wider bandwidth and improved error correction. The L5 frequency shared by IRNSS, GPS, Galileo, and QZSS is comparable to other L5/E5a signals for positioning and navigation.