What is a frequency hopping FHSS device?

Frequency-Hopping Spread Spectrum (FHSS) equipment is a wireless communication technology that transmits signals by rapidly hopping between multiple frequencies within a predetermined time. This technology can provide higher communication security because the signal is not fixed on a single frequency but hops between multiple channels, making it more difficult to be interfered with or intercepted. The working principle of FHSS technology is to spread the data signal over multiple narrowband carriers, which change frequency across the entire available frequency band according to a specific algorithm. The hopping pattern is pseudo-random, so only the transmitting and receiving devices know the correct hopping sequence to maintain synchronization and communicate correctly.