Guides

Compare analog and DSP lock-in amplifiers. Study the differences in dynamic reserve, phase stability, and operating frequencies using standard SRS models.

Compare compact microwave system-integration amplifiers and benchtop instrumentation amplifiers for RF ATE systems and general-purpose laboratory test setups.

Technical guide to oscilloscope buffer amplifiers and high-impedance adapters. Learn how they prevent capacitive loading and expand signal sensitivity.

Compare RF preamplifiers and power amplifiers. Learn how design trade-offs affect noise figure, sensitivity, and linear output power in test systems.

Learn how RF distribution amplifiers preserve critical phase noise and guarantee high port-to-port isolation in multi-instrument timing reference systems.

Learn the differences between Bit Error Rate Testers (BERT) and Digital Communication Analyzers (DCA) for high-speed telecom and signal integrity testing.

Compare modular DC power analyzers and precision AC power analyzers to select the correct bench instrument for dynamic sourcing or multi-phase AC testing.

Learn the differences between impedance analyzers and LCR meters, focusing on swept-frequency analysis, parasitic extraction, and equivalent circuit modeling.

Compare logic analyzers and digital serial analyzers (DSAs). Learn when to use multi-channel state tracking vs. high-bandwidth physical-layer debug.

Understand the critical differences between scalar and vector network analyzers, focusing on phase measurements, S-parameters, and group delay calculations.

Compare the roles of logic analyzers and digital pattern generators in digital debugging, contrasting passive acquisition with active test stimulus.

Compare modular logic analyzer mainframes with portable standalone units. Learn about channel scalability, cross-module triggering, and setup trade-offs.

Understand the differences between asynchronous timing and synchronous state analysis in logic analyzers to correctly configure your acquisition setup.

Learn how logic analyzer timing resolution and state acquisition speed affect digital debug, featuring analysis of high-speed memory and bus interfaces.

A technical guide evaluating combination network, spectrum, and impedance analyzers, focusing on instrument integration, performance, and engineering trade-offs.

Compare Keysight ENA and PNA-L/PNA-X network analyzers. Understand differences in architecture, frequency limits, and port configurations for RF testing.

Compare the fundamental differences between scalar and vector network analyzers, focusing on amplitude-only versus phase-and-magnitude measurement systems.

Compare transmission/reflection (T/R) and full S-parameter test set architectures in RF vector network analyzers to determine accuracy and testing speed.

A technical guide comparing manual VNA calibration kits (SOLT) with electronic calibration (ECal) modules, analyzing accuracy, repeatability, and port wear.

Compare swept spectrum analyzers with digital signal analyzers. Learn how digital IF, analysis bandwidth, phase noise, and DANL guide instrument selection.

Learn the differences between spectrum analyzers and network analyzers, covering core stimulus-response architectures, typical measurements, and applications.

Compare manual mechanical calibration kits and USB electronic calibration (ECal) modules for VNAs, focusing on speed, wear, and performance.

Compare rubidium frequency standards and quartz crystal references on stability, drift, and warm-up using the SRS FS725 and Keysight 70310A.

Technical guide on VNA calibration kit connector selection, impedance matching, and preventing physical damage during RF and microwave calibration.

Learn the technical differences between coaxial power splitters and directional couplers, focusing on insertion loss, port isolation, and RF routing.

Compare fixed and step RF coaxial attenuators. Learn how fixed attenuators optimize impedance matching while step attenuators provide dynamic level control.

An engineering guide to coaxial attenuator frequency limits and connector choices, exploring SWR, insertion loss, and transitions from Type-N to 2.4 mm.

Compare manual and programmable step attenuators for RF test systems. Understand trade-offs in switching speed, repeatability, and driver integration.

Compare single and dual directional couplers. Learn how design, directivity, and coupling factors influence simultaneous forward and reflected power measurements.

Technical guide on optical clock recovery modules, explaining how precise reference signals are extracted for oscilloscopes and bit-error-rate testers.

Understand the difference between CW and pulsed microwave frequency counters, featuring technical limits like pulse width, PRF, and frequency ranges.

Understand the differences between single-shot time interval resolution and frequency resolution in universal counters like the SR620, 53220A, and 5334B.

Learn how reciprocal frequency counters work, comparing them to direct gate designs, and see how they maintain high resolution even at low frequencies.

Learn the difference between single-channel RF frequency counters and multi-channel universal counter/timers for frequency, phase, and time-interval testing.

Compare Michelson interferometer-based and diffraction-grating optical spectrum analyzers (OSAs) for fiber-optic testing, resolution, and coherence.

Compare single-pass and double-pass monochromator architectures in optical spectrum analyzers (OSAs) for high dynamic range and DWDM measurements.

Compare polarization controllers and polarization analyzers for fiber optic testing. Learn about state of polarization (SOP) synthesis and measurement.

A technical analysis of OTDR pulse width trade-offs. Learn how pulse duration affects spatial resolution, event dead zones, and dynamic range in fiber networks.

Learn how single-mode and multimode VOAs balance insertion loss and return loss to protect source lasers and optimize optical transmission testing.

Compare analog and vector signal generators. Learn the architectural differences, modulation capabilities, and typical RF/microwave applications.

Compare Direct Digital Synthesis (DDS) function generators with point-by-point arbitrary waveform generators (AWGs) for custom waveform synthesis.

Compare pulse generators and pattern generators for precise timing delay control versus digital serial protocol testing. Learn which architecture you need.

Learn how RF signal generator phase noise limits receiver selectivity testing and how to interpret phase noise specifications on high-performance instruments.

Learn why legacy test instruments carry HP, Agilent, and Keysight branding, how model numbers carry over, and how to find manuals and specs.

Compare single-source and high-density multichannel lightwave mainframes for swept-wavelength and parallel optical component testing.

Compare low-leakage parametric switch mainframes and high-density switch mainframes for semiconductor test and signal routing applications.

Learn how power module mainframes centralize power and save space on legacy test benches, using vintage configurations like the Tektronix TM502A chassis.

Guide to VXI mainframe selection. Learn how slot capacity, backplane peak rail currents, and active cooling designs protect and stabilize modular instruments.

Learn what the fractional digit means in 5½ and 6½ DMMs, how resolution differs from accuracy, and how to calculate DMM measurement uncertainty.

Compare clock recovery and phase reference modules in high-speed sampling oscilloscopes to reduce trigger jitter and improve signal analysis accuracy.

Compare automated electronic calibration (ECal) modules and manual mechanical standards for vector network analyzers (VNAs), covering speed, wear, and accuracy.

A guide to modular logic analyzer channel selection and debugging trade-offs. Learn how state clock rates, timing resolution, and memory depth scale.

Compare optical and electrical sampling modules for equivalent-time oscilloscopes. Learn how bandwidth, noise, and conversion affect high-speed digital tests.

A technical comparison of VXI and AXIe modular test architectures, comparing backplane bandwidth, triggering, power, and legacy system migration.

Learn how to select the right oscilloscope bandwidth based on signal rise time, frequency rules of thumb, and application requirements.

Learn how modular logic analyzers trade channel density for higher timing sample rates and memory depth through hardware interleaving.

Explore modular optical test mainframes integrating sources, attenuators, and power meters for high-performance optical component testing.

Compare technical trade-offs in signal routing, timing, and isolation between modular switch-measure mainframes and standalone instrument systems.

Guide to optical and electrical plug-in modules for digital communications analyzers, covering optical photodiodes, electrical channels, and filtering.

Comparing analog sweep oscillators like the HP 83592A with synthesized signal generators on tuning speed, continuous sweeps, and spectral purity.

Learn the key differences between a Source Measure Unit (SMU) and a DC power supply. Compare four-quadrant operation, precision, and application areas.

A technical guide to AC/DC oscilloscope current probes and amplifiers, comparing Hall effect and transformer technologies for electrical engineering.

Compare technical trade-offs between high-impedance passive probes and active FET probes, detailing how capacitive loading impacts high-frequency measurement accuracy.

Compare passive and active differential high-voltage oscilloscope probes. Learn about safety boundary conditions, isolation, and voltage scaling.

Learn how handheld passive H-field probes locate electromagnetic interference on PCBs. Covers dual-loop designs, diagnostic sweeps, and calibration.

A technical guide to differential and single-ended oscilloscope probes, covering ground loop hazards, safe floating measurements, and CMRR specifications.

Understand when to transition from coaxial to waveguide power sensors. Compare performance, SWR, and calibration using standard Keysight sensor models.

Technical guide on selecting optical power sensor modules. Learn about InGaAs detectors, power handling ranges, and mainframe integration requirements.

Learn the differences between peak and average RF power sensors, focusing on video bandwidth, rise times, and choosing the right sensor for modulated signals.

Compare thermocouple and diode RF power sensors. Learn how detection mechanics, dynamic range, and linearity affect CW and modulated measurements.

Understand the differences between standalone USB power sensors and traditional power meter architectures for RF and microwave average power measurements.

Compare dedicated microwave sweeper sources with general-purpose sweepers for VNA integration, highlighting Keysight 83621B and 83620B differences.

Learn how high-power synthesized sweepers drive high-loss passive networks and test amplifier compression limits in RF and microwave component testing.

Compare synthesized sweepers and RF signal generators. Learn how architecture, continuous sweep speed, and leveling modes impact microwave bench testing.

Compare continuous analog ramp sweep and digital step sweep modes in microwave sweepers, focusing on measurement speed, frequency resolution, and accuracy.

Compare dedicated RF switch drivers and general-purpose control units. Learn about voltage, current spikes, and system integration for coaxial switches.

Explore the trade-offs between latching and failsafe RF coaxial switches, focusing on drive requirements, power loss behavior, and thermal performance.

Compare matrix switch, multiplexer, and actuator topologies. Understand signal routing, bandwidth limits, crosstalk, and contact resistance in test fixtures.

Technical guide to SPDT, multiport, and bypass coaxial switch topologies. Compare performance parameters including insertion loss and isolation.

Understand the technical differences between terminated and unterminated coaxial switches, including impedance matching, VSWR, isolation, and power limits.

Technical comparison of analog TIMS and digital transmission analyzers. Compare analog loop testing with digital frame and bit error rate measurements.

Compare pulse pattern generators (PPG) and bit error rate testers (BERT). Learn how these instruments function as stimuli and detectors in digital receiver tests.

Learn the technical differences between Time Domain Reflectometry (TDR) and Frequency Domain Reflectometry (FDR) based Distance-to-Fault (DTF) cable testing.

Learn how Bit Error Rate Testers (BERT) inject and detect digital errors, and how systems evaluate physical layer performance using jitter tolerance testing.

Learn the differences between physical-layer transport testing (SONET/SDH/PDH) and packet-level datacom protocol analysis for network troubleshooting.

Understand the differences between noise figure test sets for active components and phase noise test sets for RF signal source stability and spectral purity.

Understand the technical differences between general-purpose radio communication testers and dedicated cellular emulators for wireless protocol verification.

Compare S-parameter test sets featuring internal switching with simpler transmission/reflection test kits requiring manual device reversal.

Understand the differences between wireline transmission test sets and RF communication testers for optical, electrical, and wireless network analysis.

Compare AC and DC hipot testing methods. Understand capacitive current, leakage current measurements, and key safety features of modern electrical testers.

Discover the differences between signaling and non-signaling RF test methods for Bluetooth, comparing setup complexity, measurement speed, and applications.

Compare portable multiservice field testers with transport network performance analyzers. Learn about form factors, interfaces, and testing applications.

Compare multi-function electrical safety analyzers with dedicated high-voltage hipot testers for production line testing and laboratory compliance.

Compare passive intermodulation (PIM) analyzers and vector network analyzers (VNAs). Learn why high RF power is needed to detect non-linear cable faults.