What is new: software, articles and tools.

• Software

D.T.MUX Viewer 1.75.0: Supervision, workstation configuration and operator mode

A new Supervision menu watches the channels that matter during replay, reception or acquisition: per-channel thresholds and alarms, exceedance analysis of a whole recording with its own section in the test report, calculated channels, supervision panels, "if… then" rules and templates. Supervision is not a paid option: every user has it, and like the rest of D.T.MUX Viewer it is free for recordings made with ETEP equipment. Other additions: export of a workstation's configuration to set up another one identically, an operator mode, a PTP indicator and full-screen video at native resolution.

Includes versions 1.73 and 1.74, which were not published on their own.

• D.T.MUX Viewer 1.75.0 release notes →
• Supervision in D.T.MUX Viewer →

• Resources
• Tools

Animated diagrams in the technical articles, and a live view in the Chapter 10 checker

Six animated diagrams now show, step by step, what the Resources articles explain: Chapter 10 packets written to a file, a decommutator locking onto a PCM frame, a MIL-STD-1553 command repeated from bus A to bus B, an IRIG-B time code frame, aliasing, and the ways of erasing a flash memory. The online Chapter 10 file checker now draws the file while it reads it: a lane coloured by data type, with missing packets and damaged areas marked as they are found.

• IRIG 106 Chapter 10, explained →
• PCM telemetry: frames, sync and link budget →
• Reading an avionics bus: MIL-STD-1553 and ARINC 429 →
• Time and synchronisation: IRIG-B, GPS and PTP →
• Sampling, quantisation and aliasing: how not to record a false measurement →
• Onboard memory: SSD, cartridges and erasing for real →
• Chapter 10 file checker →

• Resources

New articles: IRIG 106 Chapters 4 and 7, ED-112B, MTBF

Four new articles in Resources: what IRIG 106 Chapter 4 requires of PCM telemetry, how Chapter 7 carries packets, Ethernet and video over a PCM link, what changed for crash-protected recorders from ED-112A to ED-112B, and what an MTBF figure says and cannot tell you. The Chapter 10 article gains a "Chapter 10 or Chapter 11?" section: the recorder in one chapter, the packet format in the other.

• IRIG 106 Chapter 4: what the PCM telemetry standard actually requires →
• IRIG 106 Chapter 7: sending packets, Ethernet and video down a PCM link →
• ED-112B: what changed since ED-112A for crash-protected recorders →
• MTBF: what the number says, and what it cannot tell you →
• IRIG 106 Chapter 10, explained →

• Tools
• Resources

Online Chapter 10 file checker, and three new articles

A free checker examines an IRIG 106 Chapter 10 file (.ch10, .c10) in the browser: channels, TMATS, time, missing packets, truncation. Nothing is uploaded. Three new articles: ARINC 717 flight data frames, Ethernet and PTP in flight-test networks, and airborne data acquisition systems.

• Chapter 10 file checker →
• ARINC 717 and 573: reading the frames that feed a flight data recorder →
• Ethernet and PTP on board: a flight-test network that keeps time →
• Airborne data acquisition systems, explained →

• Software

D.T.MUX Viewer 1.72.0, and D.T.MUX Viewer Professional

D.T.MUX Viewer now checks for new versions itself, at most once a day, and installs nothing without your consent; feedback, questions and bug reports go to ETEP support from the Help menu. D.T.MUX Viewer Professional opens Chapter 10 files and streams from other manufacturers, with a 30-day free trial, then a subscription.

• D.T.MUX Viewer 1.72.0 release notes →
• D.T.MUX Viewer Professional →