How to Test A&D Subsystems with a Synchronized Multi-Scope Rack

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Essential Oscilloscope
+ Essential Oscilloscope
Essential Oscilloscope
+ Essential Oscilloscope

Correlate Distributed Subsystem Responses

Testing aerospace and defense (A&D) subsystems requires capturing multiple timing-critical signals across avionics, radar control, communications, and electronic test assemblies. Engineers need to observe how control commands, power rails, timing signals, and subsystem outputs interact during the same test event. When these signals are measured using separate instruments, differences in timebase alignment and trigger timing can make it difficult to determine the sequence of events or identify the source of unexpected behavior. Some A&D systems also use communication protocols such as MIL-STD 1553 and ARINC 429, requiring engineers to relate decoded bus activity to the surrounding analog signals. A synchronized multi-scope measurement approach provides the channel coverage and timing context needed to investigate these interactions across complex subsystems.

Performing the test requires multiple oscilloscopes connected through a shared 10 MHz reference clock and coordinated triggering to capture signals across distributed measurement points. Engineers configure the instruments to acquire control, power, timing, and output waveforms while maintaining a common timebase across the synchronized system. Aerospace and defense analysis software enables MIL-STD 1553 and ARINC 429 triggering and analysis on individual oscilloscopes, allowing engineers to examine protocol activity alongside relevant analog signals. Cross-instrument deskew helps correct timing differences between acquisition paths so measurements can be compared more consistently. This approach helps engineers investigate subsystem behavior, trace timing-related issues, and relate communication events to electrical responses across multiple measurement points during system validation.

Synchronized A&D Subsystem Test Solution

Testing aerospace and defense subsystems requires synchronized oscilloscopes that capture multiple analog signals while preserving timing relationships across instruments. Keysight Essential oscilloscopes provide high signal integrity through 14-bit analog-to-digital converters (ADCs) and a compact, rack-mountable design supporting four analog channels per 1U of rack space. The 1U Essential oscilloscopes share a 10 MHz reference clock and coordinated triggering, while cross-instrument deskew helps align measurements across the synchronized system.

Engineers can scale the number of oscilloscopes based on the required channel count, expanding synchronized signal coverage while minimizing rack space. Passive probes capture control, power, and timing signals, while differential probes measure communication signals and other differential interfaces. Aerospace and defense analysis software enables MIL-STD 1553 and ARINC 429 triggering and analysis, allowing engineers to correlate protocol activity with subsystem responses. The native oscilloscope interface supports waveform acquisition and analysis through an external display, while remote operation simplifies rack-based testing. Together, these capabilities enable engineers to investigate timing-critical events and validate complex A&D subsystems using compact automated test equipment (ATE).

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