radio silence
/ˈɹeɪ.di.əʊ ˌsaɪ.ləns/ · noun
Meaning
- A status maintained where all fixed or mobile radio stations in an area stop transmitting (sometimes limited to certain frequency bands).
- The period of time during which this status exists.
- A period of time during which nothing is heard from a person or organization, especially when such communication would normally be expected.