Electrical characteristics
1.GSM antenna
  Frequency: 433 Mhz
  V.S.W.R(5m): ≤1.5:1
  Gain(Zenith): 0dBi
  weight: 50g
  Impedance: 50 Ohm
2.Mechanical
 Cable: RG174 3m
 Connector: SMA jack bulkhead (default)
 Optional: SMA/SMB/MCX/MMCX/BNC/TNC…
 Plastic housing: Black
 Mounting: Adhesive