The Cisco 3G-ANTM1916-CM antenna operates in the 806- to 960-MHZ and 1710- to 2170-MHz frequency bands, and is designed for use with 3G high speed WAN interface cards (HWICs). The Cisco 3G-ANTM1916-CM antenna connects to the Cisco 3G wireless WAN HWICs using a reverse-polarity threaded Neill-Concelman (RP-TNC) connector.