Monotrack radar recording/playback system

A system for recording and reproducing an informational first signal and a plurality of related event demarcating second signals comprising, in combination,

• a recording medium,
• recorder apparatus for recording signals on said recording medium and including,
• means responsive to the occurrence of an event demarcating second signal for generating a time marker signal demarcating said occurrence,
• adder means connected to receive and add together as an output said informational first signal and said time marker signal in a time alignment corresponding to the time alignment of said first and second signals,
• means responsive to said event demarcating second signal for producing a code identifying each of said plurality of event demarcating second signals as they occur and the associated time marker signal, and
• means for combining said identification code and the output of said adder means, with said identification code preceding in time the associated time marker signal at the output of said adder means, and
• reproducing apparatus for reproducing said recorded signals from said recording medium and including,
• means responsive to said recorded identification code for registering prior to the occurrence of the associated time marker signal in said recorded signals the identity of the event demarcating signal represented by said recorded associated time marker signal, and
• means responsive to said identification code registering means and said recorded associated time marker signal for reproducing each event demarcating signal in said correct time alignment with said informational first signal.