HNT Capture Helium Miner Fiberglass Antenna 915mhz and 1m (3ft) RG58 Cable N-Female to RP-SMA-Male (6 dbi). All HNT Capture antennas have been purpose built for helium mining and tuned to 915mhz during the manufacturing process. Waterproof, weatherproof, rugged and compatible with Rak Wireless, Nebra, Sensecap, Bobcat and all certified Helium miners able to utilize an external 915mhz antenna.