The all new RadarBox 1090 MHz Indoor Antenna is AirNav's first lightweight, omni-directional antenna designed primarily for indoor ADS-B reception on the 1090MHz frequency. It has an SMA Male Connector with a 3 cm Magnetic Base Mounting and a cable length of 1 meter. The polarization is vertical and the antenna has a maximum gain of 5 dBi and input impedance(Ω) of 50 ohm. Standard Operating Temperature: -20°С ~ +80°С. Works optimally with the RadarBox FlightStick 1090 ADS-B USB Dongle but is compatible with all RTL SDR Software Defined Radio SDR ADS-B Receiver USB Dongles.