Anritsu 54111A – Network Analyzer; 1 MHz to 3 GHz

The Anritsu 54111A is a scalar network analyzer covering 1 MHz to 3 GHz, engineered to characterize complex reflection and transmission behavior of RF components with high directivity and measurement precision. This synthesized-frequency source instrument delivers magnitude, phase, group-delay response, return loss, SWR, and distance-to-fault analysis across a wide range of two-port devices.

Technical Specifications

Frequency Range: 1 MHz to 3 GHz Measurement Capabilities

• Complex transmission and reflection characteristics


• Magnitude, phase, and group-delay response


• Return loss and precision return loss


• Standing Wave Ratio (SWR)


• Group delay and absolute power


• Distance-to-fault Source Architecture


• Synthesized-frequency source with crystal-based stability


• Low source harmonics


• High directivity SWR autotester configuration


• Optional 70 dB RF step attenuator (Option 2) Interfaces


• GPIB (General Purpose Interface Bus) for remote control and system integration, supporting up to 15 devices at 1 Mb/s maximum data rate


• Built-in floppy disk drive for data storage

Key Features The 54111A delivers accurate RF characterization through its crystal-stabilized source and multi-parameter measurement suite. The instrument supports customizable display and measurement setups for flexible test configurations. Internal RF attenuation capability (Option 2) extends dynamic range to 70 dB for demanding applications.

Typical Applications The 54111A characterizes amplifiers, antennas, attenuators, cables, filters, adapters, RF bridges, duplexers, couplers, waveguide transmission lines, isolators, circulators, mixers, receivers, transceivers, up/down converters, multiplexers, power dividers, VCOs, switches, and related RF/microwave devices.

Compatibility & Integration GPIB connectivity enables integration into automated test systems and remote operation. The instrument is part of the 54100A series family. Rack mounting with slides and 90-degree tilt capability is available (Option 1). External power measurement requires Anritsu power sensors

MA4601A for 50Ω or MA4603A with J0365 connector for 75Ω applications, paired with the ML4803A Power Meter.