The Rohde & Schwarz ZNB8 is a vector network analyzer engineered for precision RF component characterization across 9 kHz to 8.5 GHz. It delivers dynamic range up to 140 dB, sweep times as fast as 4 ms for 401 points, and measurement speed better than 5 µs per point. Available in two-port and four-port configurations—the four-port model includes two independent internal generators. The instrument supports expansion to 48 ports via switch matrices and offers electronically adjustable output power over more than 95 dB range.
– Technical Specifications
Frequency Range: 9 kHz to 8.5 GHz
Port Configurations: Two-port and four-port models; four-port includes dual independent generators
Dynamic Range: Up to 140 dB at 10 Hz IF bandwidth; extended option (ZNB8-B5x) reaches 150 dB for inter-port measurements
Measurement Speed: 4 ms minimum sweep time (401 points); 5 µs per point or better
Output Power: Maximum +13 dBm; adjustable over 95–98 dB range
IF Bandwidth: 1 Hz to 10 MHz
Stability & Noise: Temperature coefficient 0.01 dB/°C or better; phase drift <0.15°/°C; trace noise <0.004 dB RMS at 10 kHz IF bandwidth
Display: 12.1" high-resolution touchscreen
– Key Features
• Wide dynamic range with optional extended performance (150 dB)
• Sub-millisecond sweep capability for high-throughput production
• Automatic and manual calibration methods; TSM calibration offers TOSM-equivalent accuracy with fewer steps
• Automatic calibration units support up to 24 ports
• Receiver step attenuators available for ports 1–4 (30 dB in 10 dB increments)
• Extended power range option (B24) down to −80 dBm
• GPIB interface option (B10) for system integration
• Fast synthesizer settling contributes to rapid measurement cycles
– Typical Applications
Component and subsystem validation; production test environments requiring high-speed throughput; multi-device characterization via switch matrix expansion; demanding laboratory and manufacturing settings.
– Compatibility & Integration
Supports expansion to 48 ports using switch matrices. GPIB connectivity available. DC inputs option (B81) for extended measurement capability.
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