Features: Seamlessly connect to a broad spectrum of frequencies with our donuts WB antenna, designed to offer stellar performances from 10kHz to 180MHz and inclusive of a low impedance converter for superior reception across various technological apparatus. With the Loops antenna, you can bypass the complexity of tuning, offering direct access to any frequency within the extensive range without the need for constant adjustments or multiple antennas. The antenna is a perfect matching for scanning aficionados, equipped with a low impedance converter to meet the specific demands of avids scanning without compromising on ease or functionality. Whether integrating with traditional radios, modern Walkies-talkies, or the latest SDRs, the donuts wideband antenna is the key to unlocking versatile connections across all your radio communication devices. The small Loops antenna sets a new standard in reception efficacy. It maximizes energy capture from your input source while curbing signal loss due to fluctuating antenna impedance, delivering crisp and dependable communication signals. Specifications: Material:PCB Power: Low impedance converter with builtin 500mAh battery Frequency:10kHz-180MHz Diameter:65mm/2.56'' Package Includes: 1Piece Donuts WB Antenna note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color of the item.