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The purpose of this document is to provide some basic technical background on how equipment designed for the 2.4 GHz and 5.8 GHz ISM bands works. The Industrial, Scientific, and Medical (ISM) radio bands are radio bands (portions of the radio spectrum) reserved internationally for the use of radio frequency energy for industrial, scientific and medical purposes other than communications. Despite the intent of the original allocation, in recent years the fastest-growing uses of these bands have been for short-range, low power communications systems. Cordless phones, Bluetooth devices, NFC devices, and wireless computer networks all use the ISM bands.
Additionally, we will discuss key technical considerations that customers may need to be aware of when implementing equipment in these bands, and how Multi-Link design engineers have worked to improve reliability and security of our products in these bands, as well as co-existence with other equipment that may be in the area.