This practice specifies a video and audio reference tape to be used with l-in Type B helical-scan video tape recorders as defined in ANSI/SMPTE 15M-1992. It is to be used for: indication of video frequency response characteristics for both main and sync channels of the reproducing system; adjustment of gain of the video reproducing system; comparison of carrier frequencies of the video recording system; verification of level and phase of the control track recording system; adjustment of the gain of the program audio reproducing system; indication of the audio frequency response of the audio reproducing system; comparison of the audio recording gain and frequency response characteristics of the audio recording system; and verification of levels and timings of time code information recorded on audio 3 record.