Three Rails, Two Eyes: A 100BASE-TX Transmitter Compliance Test at electronica 2026
UNI-T's Ethernet Compliance station ran the 100BASE-TX AOI template test on an MSO8804HD. The three-rail MLT-3 eye identifies the PHY. The template is one of several Tx tests; amplitude, rise...
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TEST_PACKET to Bathtub: Reading a USB 2.0 High-Speed Jitter Analysis at electronica 2026
A USB 2.0 high-speed jitter test, start to finish: TEST_PACKET mode, fixture, 12-bit capture, then eye, TIE, jitter spectrum and bathtub on one screen. TJ 228.3 ps is about 11...
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Same Load, Different Gain: Double-Pulse and Harmonic Load Pull for GaN at EuMW 2026
Maury Microwave’s InsightPro displayed two gain curves at thesame load, from a single-pulse and a double-pulse power sweep, differingby several dB at low drive. For GaN, charge trapping makes load-pullresults...
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Microsoft Rallies, Chips Fall: The AI Infrastructure Divide After the US Midterms
Microsoft rallied as chip stocks fell after the US midterms. An engineering view of the divide: data-center permits, power delivery, financing and the gap between planned capacity and paying customers.
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Know the Limits of Your Own View: Spectrum Monitoring and GNSS PNT Verification at EuMW 2026
Two Keysight stations at EuMW 2026 dealt with the RF world outside the lab: networked spectrummonitoring at 750 MHz with 100 MHz bandwidth, and GNSS receiver verification against a simulated...
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Caught Mid-Calibration: Why an 8 GHz Analysis Span at 20 GHz Needs Full-Path Correction
At Keysight’s Master Signal Analysis station, the 89600 VSAshowed an 8 GHz span at 20 GHz while calibrating. The uncorrectedspectrum showed strong tilt and periodic notches: cable loss, mismatchripple and...
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Delay and Doppler in Motion: What End-to-End NTN Emulation Has to Reproduce
Keysight’s end-to-end NTN demo used a PROPSIM FS16 channelemulator to reproduce a LEO satellite pass: Doppler swinging from about+40 kHz through zero, and delay changing by milliseconds. These time-varying effects,...
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Image Rejection Peaked at −88.2°, Not 90°: Reading an I/Q Mixer Phase Sweep at EuMW 2026
Keysight’s PNA-X characterised an I/Q mixer over LO frequency, baseband frequency and Q drivephase. Image rejection peaked at 46.93 dB at −88.2°, not 90°. The 1.8° offset is the device’s...
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Same Screen, Different Offsets: Reading a Phase Noise and AM Noise Demo at EuMW 2026
Keysight’s signal purity demo showed phase noise and AM noiseof three 10 GHz carriers from a two-channel hybrid YIG/DDS source.Markers at 312.830 kHz and 278.346 kHz looked comparable but werenot....
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The Most Honest Line at EuMW 2026: An AI Agent’s Instruction File for Keysight ADS
Keysight’s agentic AI demo built a 50 Ω thru in ADS from a chatrequest. The instruction file behind it admitted that an earlier draft usedAPI calls that do not exist,...
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An AI Agent on the RF Bench: The Power Budget Is the Guardrail
At EuMW 2026, Keysight showed an AI agent driving a source, asignal analyser and a ZX60-24A-S+ amplifier through a harmonics test.The key engineering content was a written power budget: −10...
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A Demo-Board S21 Is Not a Connector S21: Board-to-Board Coax Interconnects at 40 GHz
At EuMW 2026, Smiths Interconnect demonstrated EZiCoax spring-loaded board-to-board coax contacts on an Anritsu ShockLine USB VNA. The card quoted about −1 dB at 40 GHz, and the screen showed...
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