1.Enhanced Performance: This compact active small magnetic loop antenna is designed to deliver optimal results. With a frequency range from 50kHz to 500MHz, it provides excellent reception capabilities for a wide range of signals. 2.High-Quality Components: While the shortwave radio active loop antenna doesn't include a 12V linear power supply, it is recommended to purchase a high-quality power supply separately. This the antenna operates at its best and maximizes performance. 3.Versatile Design: The full band radio antenna consists of a top jumper board, small loop amplifier board, small loop coil, feeder line, and 12V linear power supply. The top jumper board and small loop feature switchable amplifier boards, allowing for different configurations to suit your needs. 4.Improved Signal Gain: The loop within the active small magnetic loop antenna structure provides a voltage gain twice that of a regular loop, enhancing signal reception. The shielding loop effectively reduces interference caused by surrounding electric fields like static discharge. The non-shielded loop offers a simplified structure. 5.Easy Installation and Modification: The active small magnetic loop antenna can be easily replaced with thicker wires, simplifying size modifications. Its straightforward structure and convenient installation process user-friendly and accessible for all. Receiving frequency range: 50kHz to 500MHz Gain: 17dB 10MHz Output noise: -125dBm( 10MHz, =100Hz) P1dB: +15.5dBm 10MHz OIP3: +38dBm 10MHz Supply voltage: 9V to 12V Supply current: 130mA to 150mA Antenna Interface: SMA(M) Output Connector: SMA(F) Small ring coaxial cable model: RG402 Small ring coaxial cable loss: 0.145dB/m The printing/appearance from batch to batch, but it not affect the use; the actual product may have color difference due to different light or display. Colour:Photo Color Material:PCB+Plastic+Metal Package Contents: 1 x Loop Antenna kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.