The BSDB31U Antenna is rated at 250 watts with unity gain. You can expect years of continuous service.
The radiating elements are copper & copper alloy. In addition, they have an ultraviolet inhibited fiberglass radome for total environmental protection.
This antenna is lightweight at less than 5 lbs. but are designed to easily withstand winds of over 125 MPH.
For more details, please see the BSDB31U Tech Sheet.