A 2003 study involved three months of testing with RF spectrum analyzers and other instruments aboard regular commercial flights, and one passage reads: ...our research has found that these items can interrupt the normal operation of key cockpit instruments, especially Global Positioning System (GPS) receivers, which are increasingly vital to safe landings.
2003年的一项研究涉及3个月的搭载在商业航班的RF分析仪和其他仪器，以及一个通道的实验结果如下： ...我们的研究发现，这些仪器可以中断关键驾驶舱仪表的正常运行，特别是全球定位系统（GPS）接收器，这是对安全着陆越来越重要。