MES 65817 BFN Backfire Antenna is a compact Antenna with extremely good gain. With a half power beam width of 25 degrees, the Backfire is a highly directional 5.8 GHz Antenna to put the signal exactly where you want it. The Backfire is convenient because of its small size. Installation is very simple with the included mounting bracket. The Backfire is weather-proof because of it's ABS radome, which covers the radiating element.