Frequency Hopping Spread Spectrum (FHSS)




Frequency Hopping Spread Spectrum (FHSS)

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a technique that uses a narrow band signal, approximately 1.5MHz wide and changes frequencies (or hops) 200 times a second or every 5ms. using a narrow band signal allows concentrated RF power into a smaller area of the spectrum. This allows systems to “burn through” RF noise and interference that could otherwise be a significant problem. Additionally, changing frequencies very rapidly helps make it less susceptible to single point external interference sources, intermodulation and multipath fading.

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