Anritsu MU181000B – Synthesizer; 4 Port, 12.5 GHz

The Anritsu MU181000B is a four-port synthesizer module that generates precise clock signals from 0.1 GHz to 12.5 GHz for high-speed digital communication testing. Installed as a plug-in component in Anritsu Signal Quality Analyzer mainframes (MP1800A, MP1900A, MT1810A), this module delivers stable, low-jitter outputs across four independent ports with user-selectable frequency resolution of 1 kHz or 1 MHz. Output levels range from 0.4 Vp-p to 2 Vp-p AC, with frequency stability of ±1 ppm when using the internal reference clock.

Technical Specifications

• Frequency Range: 0.1 GHz to 12.5 GHz


• Setting Resolution: 1 kHz or 1 MHz (switchable)


• Frequency Stability: ±1 ppm (internal reference)


• Offset Function: −1000 to +1000 ppm, 1 ppm steps, 1 Hz minimum resolution


• Output Ports: 4 independent channels


• Output Level: 0.4 Vp-p to 2 Vp-p (AC)


• Dimensions: 234 mm W × 41 mm H × 175 mm D (Compact-PCI 2 slots)


• Mass: ≤3.0 kg

Key Features

• Four synchronized output ports eliminate the need for external distribution amplifiers in multi-channel test setups


• Offset capability enables precise frequency deviation testing from −1000 to +1000 ppm


• Optional jitter modulation support (Option MU181000B-001 or retrofit Option MU181000B-101) enables dual-tone SJ, RJ, BUJ, and SSC modulation with half-period jitter (even/odd) support


• 1 kHz resolution at lower frequencies; 1 MHz switchable mode for faster swept-frequency measurements


• Includes four 0.3 m SMA coaxial cables (DC to 18 GHz) as standard

Typical Applications Clock distribution and frequency offset generation for stress testing high-speed serial I/O, timing characterization in digital communication systems, and jitter tolerance analysis when equipped with modulation options.

Compatibility & Integration Plug-in module for Anritsu Signal Quality Analyzer Series mainframes. Direct compatibility with MP1800A, MT1810A, and MP1900A platforms. Optional PCIE Reference Clock module (Option MU181000B-002) available for external reference synchronization.