Description Frequency : 433.92MHz Mounting: Screw (wall mount) Cable Length (m): 2M Bandwidth (MHz): 10 VSWR less than or to 1.5 Gain(dBi): 3 Max Input power (W): 20 Input Impedance( ohm): 50 Polarization: Vertical Antenna Length (mm): 250 Cable Type: RG174 Designed for any gate automation control boards or receivers. Increasing range of transmitters with 433,92MHz up to 250m!!! Impedence: 50 Ohm Colour: black Material: plastic, stainless steel, metal Package Contents: 1 * Antenna 1 * Metal base Only the above package content, other products are not included. Note: Light 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.