For many types of data‐transfer systems, it is desirable that the data be delayed long enough so that the system is ready for the data. In the present Space Surveillance system, it is desirable to delay data until the recorder is up to speed. The requirement for delaying the composite Inter‐Range Instrumentation Group (IRIG) FM telemetering signals from a space surveillance site by12 secwas fulfilled by converting the phone line frequencies into sound, which is then transmitted through a pipe long enough to provide the desired delay and then reconverted into electrical signals. The delayed output is essentially distortionless.