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Definition of Dual-band
1. Noun. A device that is capable of operating in two frequencies. On a wireless network, dual-band devices are capable of operating in both the 2.4GHz (802.11b/g) and 5GHz (802.11a/n) bands. In cellular phone technology, dual-band devices typically operate in both the GSM900 and GSM1800 frequencies, allowing a greater number of roaming options. ¹
¹ Source: wiktionary.com
Lexicographical Neighbors of Dual-band
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