Helium Miner 868MHZ Fiberglass antenna 1,Introduction: The fiberglass antenna is for outdoor use,recently the most popular antenna for Helium miners. The frequency could be choose with 868mhz,915mhz;also the gain can be choose with 3dbi,5.8dbi,8dbi,10dbi,12dbi as well. 2,Different frequency introduction: 868MHZ Fiber Glass Antenna,915MHZ Fiber Glass Antenna. LoRa Gateway Antenna,Wifi Antenna,Fiber Glass Antenna .