Double frequency car DVD navigation GPS satellite antenna, active universal amplifier, SMA/GPS mouseshell navigation antenna, easy to install. Product material: ABS. Product weight: About 65g. Packing size: About 20*8*2CM/7.87*3.15*0.79in. Antenna specification: Center frequency: 1575.42MHz, V.S.W.R.: < 1.5, Bandwidth: ±5MHZ, Polarization: Right polarized, Impedance: 50Ω. LNA specifications: LNA gain (without cable): 28DB, Noise Figure, Interference suppression: 20dB (f0±140MHz), V.S.W.R.: < 2, DC voltage: 3±0.3VDC; 5±0.5VDC.