ITEM NAME:Antenna 433MHz gsm gprs 90 ° SMA male plug right angle 5cm ham radio M&O Product Name: 433MHZ Antenna Frequency: 433MHz Radiation type: omni-directional (omnidirectional) Gain: 2 DBI Impedance: 50 Ohm Standing wave ratio: ≦ 2.0 Interface: 90 degree elbow SMA inner screw inner needle (can also be changed to inner hole package:1pcs.Frequency: 433MHz. Interface: 90 degree elbow SMA inner screw inner needle (can also be changed to inner hole. Impedance: 50 Ohm. Standing wave ratio: ≦ 2.0. ).