在天气变化较大的季节里,交通、水利、电力、铁路、建筑、商业、旅游、农渔业以及一些专业户迫切需要了解最近的天气情况。传统的公众服务方式是由广播电台定时预报的,但现已不能满足各行各业的要求,于是就提出了如何迅速、准确地把灾害性天气,诸如龙卷、冰雹、大风、暴雨、雷暴等信息及时通知用户的问题。我省从1985年7月开始用甚高频波段天气警报系统在湖州、定海、普陀、桐乡等气象台站先后作了实地试验,并取得了良好的效果。警报接收机为交直流两用机,性能可靠,使用方便,不 In the seasons where the weather is changing rapidly, there is an urgent need to know the recent weather conditions in transportation, water conservancy, electricity, railways, construction, commerce, tourism, agriculture and fisheries, and some specialized households. The traditional method of public service is regularly forecast by radio stations, but now can not meet the requirements of all walks of life, so how to quickly and accurately the disastrous weather, such as tornado, hail, windy, heavy rains, thunderstorms, etc. Information promptly notify the user of the problem. Since July 1985, our province has conducted field tests using the VHF band weather warning system in Huzhou, Dinghai, Putuo, Tongxiang and other weather stations, and achieved good results. Alarm receiver AC and DC dual-use machine, reliable performance, easy to use, no