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河北省计经委于1989年6月28日对新近研制成功的ZWY-4100型调频广播综合测量仪和ZWY-1255型频率特性测量仪进行了设计定型鉴定,广播电影电视部等有关领导和专家参加了鉴定会。4100W频广播综合测量仪是调频广播发
On June 28, 1989, Hebei Provincial Commission of Economic Planning and Design commissioned the design and appraisal of the recently developed ZWY-4100 FM radio integrated measuring instrument and ZWY-1255 frequency characteristic measuring instrument, and attended the relevant leaders and experts such as Radio, Film and Television Department Appraisal meeting. 4100W frequency broadcast comprehensive measuring instrument is FM radio hair