How to Characterize Wideband Multi-Channel RF Testbeds

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Expert Benchtop Oscilloscope
+ Expert Benchtop Oscilloscope
Expert Benchtop Oscilloscope
+ Expert Benchtop Oscilloscope

Characterize Wideband Multi-Channel RF Signals

Wideband RF and differential signal testbeds require engineers to compare signal behavior across multiple channels, domains, and signal paths simultaneously. A conventional waveform view is often not enough to reveal subtle impairments such as channel-to-channel mismatch, differential imbalance, spurs, modulation degradation, or transient effects that only become visible when time- and frequency-domain perspectives are used together. These measurements also depend on reliable access to embedded differential nodes and supporting trigger, clock, and control signals so engineers can observe the full system behavior.

Engineers also need to isolate issues in complex benches where synchronized channels, quadrature relationships, wide analysis bandwidth, and high-fidelity probing all affect the measurement. Capturing this information requires an oscilloscope with synchronized multi-channel acquisition, high-fidelity probing, and analysis software that can compare channels consistently, zoom into baseband or intermediate-frequency behavior, and review signal quality metrics across the system. With this broader view, engineers can more effectively isolate interactions that might otherwise be missed when signals are evaluated one trace at a time.

Wideband Multi-Channel RF Characterization Solution

Characterizing wideband RF and differential signal testbeds requires an oscilloscope, high-fidelity probing, and analysis software capable of correlating synchronized multi-channel signals across time, frequency, baseband, and intermediate frequency (IF) views. The Keysight wideband RF characterization solution combines an 8-channel, 6 GHz Expert Benchtop Oscilloscope with vector signal analysis software, plus differential probes for embedded differential nodes, and passive probes for trigger, clock, and other support signals. This integrated setup helps engineers capture complex signal behavior and uncover issues such as channel-to-channel variation, differential imbalance, spurs, and modulation degradation. Together, these products enable spectrum, time- and frequency-domain, baseband, IF zoom, in-phase plus quadrature (I+jQ), and error vector magnitude (EVM) analysis for faster troubleshooting and more confident system-level characterization.
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See Block Diagram of Wideband Multi-Channel RF Characterization Solution

Wideband Multi-Channel RF Characterization Solution Block Diagram

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