StreamXpert Adds DEPI and PCAP Support

Remote Monitoring of DVB-T / HbbTV with DekTec

Triveni Upgrades its StreamScope XM with DTA-2139C

Auton Uses Atsc3Xpert to Test Connected Car Technology

Latest Software Updates

StreamXpert can now analyze DEPI (Downstream External PHY Interface), an interface used in cable-TV networks. DEPI is an IP tunnel between DOCSIS core equipment and a "Remote PHY" device that transmits the DOCSIS frames on the coax cable.

Cable headends are optimizing their system architecture by moving to such "Remote PHY" solutions, minimizing the amount of hardware at the endpoint and centralizing the heavy processing.

StreamXpert can help cable operators with this transition. The DEPI analysis module unpacks TS packets from the L2TPv3 layer and (optional) UDP protocol. Different 'MPT' sessions can be present, each containing a single Transport Stream. The required session ID can be selected from a drop-down list.

PCAP Offline File Analysis

In addition to real-time IP analysis via any network adapter, StreamXpert now also supports PCAP offline file analysis. So, if you have made a Wireshark PCAP recording, you can start analyzing your UDP, RTP or DEPI streams containing video feeds right away!

The new DEPI and PCAP functionality is included in StreamXpert v2.15 and freely available to those users that have a StreamXpert license with a current maintenance agreement.

Many broadcasters are looking to deploy addressable advertising solutions using interactive TV standards such as HbbTV over DVB-T. These nationwide networks are typically managed from a central location in the country, creating challenges in monitoring the behavior of the new services.

Recently, Justin Gupta of Google undertook a proof-of-concept project to demonstrate the technical feasibility of rebroadcasting a DVB-T signal over the Internet from one location to another. This project could be used as a recipe for those wanting to either send or receive a DVB-T signal over IP.

The test used a DTA-2138B and MuxXpert to receive DVB-T and rebroadcast the service over the Internet with all interactive data tracks intact. A DTU-315 also with MuxXpert software was used to recreate the DVB T transmission. It proved possible to minimize the re-transmission bandwidth to less than 4Mbps for a single SD channel with interactive services.

This proof-of-concept project has been described by Justin Gupta in a step-by-step guide. You can download it here.

This concept of remote monitoring can be applied to other terrestrial modulation standards, too, including ATSC 1.0 or 3.0 and ISDB-T. DekTec has the receiver and modulator hardware to realize such solutions.

Triveni Digital is enhancing its StreamScope XM Analyzer by integrating the DTA 2139C, allowing simultaneous analysis of twelve ATSC 1.0 and/or 3.0 streams. This enables quality assurance of all over-the-air signals in a single designated market area (DMA) with a single instrument.

The DTA-2139C is DekTec's flagship multi-channel receiver card, offering 12 independent VHF/UHF tuners and hardware demodulators. In addition to ATSC 1.0/3.0, each receiver also supports QAM, DVB-T/T2 and even ISDB-T reception. RF measurements, including lock status, RF level, MER and BER are available on each channel for monitoring.

Full information can be found in Triveni Digital's press release:
Triveni Digital Simplifies NextGen TV Stream Analysis With New StreamScope XM

ATSC 3.0's main goal is to optimize terrestrial video distribution. However, ATSC 3.0 can also be used creatively for new applications, e.g. delivering IP data to an entire city using existing broadcast towers.

IP over ATSC 3.0 is applied by Auton Inc., a developer of a broadband solutions for connected cars, to transmit secure software updates to cars on the move.

Auton has conducted real-life tests in the Seattle area, using DekTec equipment for real-time RF measurements in the field. The DTA-2131 and Atsc3Xpert were used, which support all ATSC 3.0 modes, allowing Auton to experiment with new ideas on the fly.

Robert Foster, CEO of Auton, said "The DTA-2131 receiver performed admirably. It's amazing how beat up the signal can get and still play decent video."

Check Auton's complete press release:
Auton Achieves Field Trial Success of Its Connected Car Technology

DekTec continues to update its software suite to fix bugs, make improvements, support new DekTec hardware devices and keep up with the advancement in our industry.

You can download the latest versions of our software at dektec.com.

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