E/M Wave multi-band antennas have been chosen by users operating heavy truck and mobile fleets, wireless carriers, railroad and data telemetry for oil, gas and utility applications. EM-M20007 operates on all 4G/LTE bands including the 2.4 GHz Wi-Fi band, EM-M22001 on 400 and 700-900 MHz bands. Typical users demanding high speed 4G/LTE connectivity, dual band or multi-band operation under extreme conditions have chosen these antennas for its rugged broadband performance in mobile, vehicle or fixed mount applications required to withstand a variety of outdoor (or indoor) environments exposing the antenna to extreme temperature variations, humidity, dust, moisture, direct high pressure jet wash equipment and debris impact at very cold temperatures.