MiniWhip amplifies the signal of the potential difference between the small metal plate and the ground, and then transmits it to the receiver through the core wire and shielding layer of the coaxial cable after amplification. Features: Adopts quality electronic components, with accuracy proce, which ensures fine durability and long service time. Superior multilayer PCB design, large area cooling metal. Fine contact performance, that ensure stable working. Mini design, SMA female output interface, which is easy to connect. The operating frequency-range is 10KHz-30MHz. The powersupply-range is DC9-15V Typical 12V, and the maximum output power is more than -15dBm. Builtin circuit-protection can make sure that the operation is much safer. Specifications: Name: Active Antenna Material: PCB board Operating frequency-range: 10KHz-30MHz Powersupply-range: DC9-15V, typical 12V Maximum output power: >-15dBm Output interface: SMA female interface Item size: Big: 113 * 32 * 7mm / 4.45 * 1.26 * 0.28in Small: 60 * 23 * 7mm / 2.36 * 0.91 * 0.28in Item weight: 37g / 1.31ounce Package size: 130 * 80 * 10mm / 5.12 * 3.15 * 0.39in Package weight: 41g / 1.45ounce Packing List: 2 * Active Antenna