20 550mm antenna for helium hotspot

{"cid":"91186778","title":"868\/915MHz 5.8dBi Fiberglass Base Station Antenna for Helium HNT","imgUrl":"https:\/\/img.chinax.com\/nimg\/f1\/b7\/ea52d95a429be34a96d904a43eed-200x200-1.jpg","attrs":{"Price":"8.9","Minimum Order Quantity":"100","Frequency":"868\/915 MHz","V.S.W.R":"<= 2.0","Antenna Gain":"5.8 dBi","Polarization":"Linear","Impedance":"50 Ohm","Radiator Material":"Brass","Plastic Material":"Fiberglass","Connector Type":"N male connector","Operation Temperature":"-20 \u02daC ~ +60 \u02daC","Storage Temperature":"-40 \u02daC ~ +80 \u02daC","Dimensions":"20*800mm","Structure Form":"Surface Antenna","VSWR":"1.5~2","Gain":"5.8 dBi","Model NO.":"TX-HG023"}}