Many radio systems like LTE use 2-way MIMO (Multiple-Input, Multiple Output) to achieve a better throughput and better robustness of the signal. But also professional DECT telephone systems or GSM modems more and more use two antenna connections for diversity reception, which helps to extend the range.
THe 18775.1727 machine antenna has two antenna systems with linear polarization built in, and also two separate antenna cables with SMA connector. The frequency range of this antenna is suitable for LTE bands 3 and 7, for DECT, GSM-1800 (DCS) and Wifi at 2.4 GHz (802.11b/g/n). The solid construction of the antenna makes it well suitable for installation on machines, equipment racks, suspended ceilings and much more.