用简单的材料自制gps天线

用铜线、塑料杯等简单的材料制作gps天线，英文版原版配图，内容步骤详细，光看图就可以懂。对有兴趣自制GPS的同志很实用。IfyouoperateAPRSorjustneedanexternalantennaforyourGPSreceiver,here’sonethatiseasytobuildyetofferssurprisinglygoodperformanceinacompactsize.Bestofall,itusescommonlyavailablecomponentsandmaterials.