A loading coil and an effective radiator is used for 80 meters -- 1.5 kW PEP. For best performance, the 18AVQII should be ground-mounted, clear of buildings and other structures. When the antenna is ground-mounted, a radial system is sometimes not needed. In most areas, where soil surface conductivity is poor and a good ground plane is not possible, lay out ground radials to improve the efficiency of your antenna. Bands: 10, 15, 20, 40, 80 meters.Mast diameter: 1.5-1.625 inches. The item "Hy-Gain AV-18AVQII 10/15/20/40/80 Meter HF Vertical Base Station, 1500 Watts" is in sale since Wednesday, December 19, 2018. This item is in the category "Consumer Electronics\Radio Communication\Antennas\Ham, Amateur Radio Antennas".antennastore" and is located in Lockport, New York. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, South africa, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, Mexico, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Brazil, Chile, Colombia, Costa rica, Panama, Trinidad and tobago, Guatemala, Honduras, Jamaica, Viet nam.