这套称作VDLM2的先进VHF数字链模式2通信系统前不久装在美国航空公司的9658航班上完成了从塔尔萨到纽约的飞行。飞行中,飞行操作的信息通过VDLM2直接传给爱瑞克的VHF全美网络的地面站,话音数据显示飞行中没有出现VDLM2掉线的情况。随着商务运营飞机的增加和信息量的剧增,现行的ACARS的带宽能力已不堪重 The advanced VHF digital chain mode 2 communications system, called the VDLM2, was recently completed on American Airlines flight 9658 from Tulsa to New York. During flight, flight operation information was passed directly to Ericsson’s ground station on the VHF National Network via VDLM2, and voice data showed no VDLM2 dropped during the flight. With the increase of business operation aircraft and the sharp increase of information volume, the current ACARS bandwidth capacity is overwhelmed