ANSI Standards ANSI SCTE 243-4-2018 pdf free download – Next Generation Audio Carriage for Cable Systems: Part 4 – DTS-UHD Audio Carriage Constraints ANSI SCTE 243-4-2018 pdf free download - Next Generation Audio Carriage for Cable Systems: Part 4 – DTS-UHD Audio Carriage Constraints. Note that MaxPayloadCode can be used to determine the minimum IEC sample clock frequency required to... 02-19 Download Now