Product description Compatibility: This works on the Hummer factory navigation system with following vehicles: MAZDA CX-9 Features: Brand New 5 Meters GPS Antenna Active Gain for better signal Built-in Powerful Low Noise Amplifier Magnetic Base Specification: Dielectric Antenna Center Frequency 1575.42MHz3 MHz V.S.W.R 1.5:1 Band Width 5 MHz Impendence 50 ohm Peak Gain >3dBic Based on 77cm ground plane Gain Coverage >-4dBic at 90
