Amplifier:NE592Battery: 9VWorking Voltage: 6-10VRing Diameter: 30-40CMReceiving Range: 536kHz -1605kHz (AM Band)3-30 MHz87-108 MHz116-136 MHz Active SDR Loop AntennaSKU: SDRLOOPAU$29.00PriceSales Tax Included | Shipping InfoQuantityOut of StockNotify When Available