The Anritsu MS46121B is a 1-port USB Vector Network Analyzer engineered for S11 reflection measurements of passive components and assemblies. Operating from 150 kHz to 6 GHz, this compact instrument connects directly to the device under test and draws power and control signals from a standard PC via USB. Its minimal footprint—52 mm × 36 mm × 144 mm, weighing 0.4 kg—makes it ideal for manufacturing floors, lab benches, and field deployment without sacrificing measurement accuracy.
## Technical Specifications
• **Frequency Range:** 150 kHz to 6 GHz
• **Measurement Parameters:** S11; user-defined combinations of a1, b1; scalar transmission (S|XY|) via Option 21
• **Sweep Speed:** 120 µs/point typical (140 µs/point dependent on host PC configuration)
• **Trace Noise:** Magnitude 0.02 dB typical; Phase 0.02° RMS
• **Corrected Directivity:** 42 dB typical
• **Data Points:** 2 to 20,000 points per sweep
• **IF Bandwidth:** 10, 20, 30, 50, 70, 100, 200, 300, 500, 700 Hz; 1, 2, 3, 5, 7, 10, 20, 30, 50, 100 kHz
• **Limit Lines:** Single or multi-segment (50 segments per trace, 2 lines per trace)
• **Markers:** 12 active markers + 1 reference marker per trace
• **Port Configuration:** Type N(m) connector
• **Power:** USB-powered from user-supplied PC
• **Operating Temperature:** 0 °C to 50 °C
## Key Features
• **Display & Control:** ShockLine GUI supports up to 16 independent traces per channel with full trace memory
• **Time Domain:** Standard bandpass time-domain gating for fault location; Option 2 adds TDR-style impedance analysis
• **Scalar Transmission:** Option 21 enables magnitude-only measurements between multiple MS46121B units in 1-to-1 or 1-to-n configurations
• **Multisite Operation:** Single PC can control up to 16 MS46121B analyzers in parallel via ShockLine software, maximizing test throughput
## Typical Applications
Manufacturing test floors, component verification, education, impedance profiling, cable and connector assessment, and rapid reflection-coefficient measurement workflows.
## Compatibility & Integration
Runs native ShockLine software shared across MS46121B, MS46122B, MS46131A, ME786xA, MS46322B, MS46522B, and MS46524B platforms. Compatible with Anritsu precision-component and mechanical calibration kits.
