radio silence
noun [ C or U ] uk/ˈreɪ.di.əʊ ˌsaɪ.ləns/ us/ˈreɪ.di.oʊ ˌsaɪ.ləns/
（电台不广播任何信息的阶段）电波静默
a period of time when nothing is broadcast by radio
Radio silence may be imposed on other stations during a distress call. 在收到求救信号后，其他电台被要求保持电波静默。
（某人）不与其他人交流的阶段
a period of time when someone does not communicate with another person or other people
He texted me every day for a week, and then: radio silence. 他每天向我发短信，这样保持了一周，然后就是静默了。