ATSC DTx Adapter

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Product Features


  • Fully compliant with ATSC standard A/110:2011
  • ASI and SMPTE 310M (optional) inputs and outputs
  • Integrated GPS Receiver provides 10 MHz and 1 PPS reference signals
  • Optional SMPTE 310M inputs and outputs allow for ASI to SMPTE 310M conversion or SMPTE 310M to ASI conversion
  • Web, SNMP and Command Line Interfaces are provided for local and remote control and software upgrades

Description and Application

The UNA 7000 design is based on the UBS Advanced Universal Modulator board, customized to operate as an ATSC Distributed Transmission (DTx) Adapter, according to ATSC standard A/110:2011. The basic function of the DTx Adapter is to insert Cadence Sync Points (CSP), Transmitter Control Packets (TCP) and optionally Dummy Data Bytes Channel and the Field-Rate Side Channel into an MPEG-2 transport stream.  The result is an MPEG-2 transport stream output that can be used to synchronize multiple transmitters operating in a single frequency network (SFN). The DTx Adapter also includes an internal GPS receiver that provides 10 MHz and 1PPS reference signals needed for transport stream generation. Optional SMPTE 310M inputs and outputs allow the user to configure the DTx Adapter as an ASI to SMPTE 310M or SMPTE 310M to ASI converter.

Web Interface

This feature allows local or remote control of the DTx Adapter via an Ethernet interface and is based on an internal Web server.  The Web pages stored on the Web server are designed as a complete graphical user interface  (GUI) for monitoring the status and setting the parameters of the DTx Adapter. The Web Interface concept is popular because remote control with this system only requires a standard computer with a network interface card (NIC) and a Web browser (Microsoft Internet Explorer, Firefox, etc.).

SNMP Client

This feature allows remote control of the DTx Adapter in accordance with the SNMP protocol (Get, Set and SNMP traps).  This remote control feature is intended for systems solutions where it is desired to integrate the control of a range of SNMP compliant equipment in a common management system.