Hy-Gain AV-18AVQII 10/15/20/40/80 Meter HF Vertical Antenna 10/15/20/40/80 Meters HF Vertical Base Station Antenna Construction: Aluminum Max Power: 1500 Watts PEP Connector: Recessed UHF (SO-239) Warranty: 3 Year Limited Warranty. Prices Reflect this Warranty