MES 69006 ODN series high performance Omni Directional Antennas are specially designed for broadband applications in GSM 900 MHz frequency band. Heavy duty fiberglass radome is durable enough to stand up to over 60 msec wind loads. All metal parts in the antenna are DC-grounded to reduce the noise caused by atmospherical discharge. No frequency adjustment is required. Mounting is easy with two extruded aluminum Ubolts which secure the antenna firmly to mast.