This calibration procedure stipulates the calibration conditions, calibration items, calibration methods, calibration result processing and calibration cycle of the 201/2 envelope delay measuring instrument. This calibration procedure is applicable to the calibration of the 201/2 envelope delay meter. Other types of video group delay meter can be calibrated with reference to this procedure.
SJ 20226-1993 history
1970SJ 20226-1993 Verification regulation of model 201/2 envelope delay measuring set