You change bands by plugging the wander lead into the appropriate socket on the base coil. Fine tuning is done by adjusting the telescopic whip. I don't sell used or refurbished equipment.The item "MFJ-1899T Multi-band Antenna for FT-817, 80 Meters Thru 6 Meters 25 Watts" is in sale since Thursday, April 19, 2018. This item is in the category "Consumer Electronics\Radio Communication\Ham, Amateur Radio\Other Ham Radio Equipment". The seller is "thehamshop" and is located in Summitville, Tennessee. This item can be shipped to United States, Canada, United Kingdom, China, Mexico, Germany, Japan, Brazil, France, Australia, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Greece, Portugal, Cyprus, Slovenia, Sweden, South Korea, Indonesia, Taiwan, South africa, Thailand, Belgium, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Austria, Bahamas, Israel, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi arabia, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Chile, Colombia, Costa rica, Panama, Trinidad and tobago, Guatemala, El salvador, Honduras, Jamaica, Antigua and barbuda, Aruba, Grenada, Saint lucia, Barbados, Bermuda, Bolivia, Ecuador, Egypt, French guiana, Gibraltar, Iceland, Cambodia, Sri lanka, Luxembourg, Oman, Peru, Paraguay, Reunion, Viet nam, Uruguay.