Feature: 1. Effectively improve the signal attenuation of the cable, improve the signal‑to‑noise ratio and increase the sensitivity. 2. The wide working frequency range is 1030±15Hz, and the passive gain is 2dBi, which will meet various work needs. 3. Has a wide radiation direction and efficiently signal receiving ability, so you can easily and stably receive the signal. 4. The functions are diversified and can be applied to various scenarios. And the printed circuit board is very durable. 5. This ADS-B antenna board has a small size and a light weight, and the installation is very simple with a SMA connector. Specification: Item Type: ADS-B Antenna Material: Synthetic Resin + Copper Foil + Printed Circuit Board Function: Active antenna can effectively improve the signal attenuation of the cable, improve the signal-to-noise ratio, and increase the sensitivity. Working Frequency: 1030±15Hz Passive Gain: 2dBi (dipole antenna) Antenna Polarization: Omnidirectional Vertical Linear Polarization Active Gain: 20dB Out-of-Band Suppression: >30dB Working Voltage: 2.5-5.5V (skin negative core positive) Working Current: 80mA System Impedance: 50 ohms Antenna Weight: Approx. 15 g / 0.5 oz Connector Form: SMA Standard Female Connector (male thread inner hole). Package List: 1 x ADS-B Antenna Note: Do not use it outside the range of voltage and current parameters.