The Rohde & Schwarz ZNB4 is a high-performance vector network analyzer with a frequency range of 9 kHz to 4.5 GHz. Designed for demanding RF component development, production, and servicing, the ZNB4 offers an exceptional dynamic range of up to 140 dB, superb trace noise performance, and highly stable, fast sweeps. It features a convenient 12.1-inch high-resolution touchscreen display, intuitive menu structures, and a short-depth benchtop footprint.
Specifications
General
| Parameter | Value |
|---|---|
| Interfaces | USB, LAN, GPIB (optional) |
| Display | 12.1" high-resolution touchscreen |
| Operating System | Windows 10 |
Physical
| Parameter | Value |
|---|---|
| Power Supply | 100 V to 240 V AC (±10%), 50 Hz to 60 Hz (±10%), max. 350 W |
| Operating Temperature | +5 °C to +40 °C |
| Dimensions (W×H×D) | 461 mm × 240 mm × 351 mm (with handles and feet) |
| Weight | 13.5 kg (2-port), 16.3 kg (4-port) |
Frequency & Stimulus Specifications
| Parameter | Value |
|---|---|
| Frequency Range | 9 kHz to 4.5 GHz |
| Frequency Resolution | 1 Hz |
| Number of Test Ports | 2 or 4 |
| Test Port Impedance | 50 Ω |
| Output Power Range (Standard, 9 kHz to 100 MHz) | -55 dBm to +10 dBm, typically +12 dBm |
| Output Power Range (Standard, 100 MHz to 2.5 GHz) | -55 dBm to +13 dBm, typically +15 dBm |
| Output Power Range (Standard, at or above 2.5 GHz) | -55 dBm to +10 dBm, typically +13 dBm |
| Output Power Range (with Option B22, 9 kHz to 100 MHz) | -85 dBm to +10 dBm, typically +12 dBm |
| Output Power Range (with Option B22, 100 MHz to 2.5 GHz) | -85 dBm to +13 dBm, typically +15 dBm |
| Output Power Range (with Option B22, at or above 2.5 GHz) | -85 dBm to +10 dBm, typically +13 dBm |
Hardware Interfaces & Connections
| Parameter | Value |
|---|---|
| Test Port Connector Type | N female |
Measurement Speed & Settings
| Parameter | Value |
|---|---|
| Number of Measurement Points per Trace | 2 to 100001 |
| Measurement Bandwidth (Standard) | 1 Hz to 1 MHz |
| Measurement Bandwidth (with Option) | 1 Hz to 10 MHz |
| Sample Time per Point (1 MHz BW) | 860 ns |
| Sample Time per Point (10 MHz BW) | 312 ns |
| Switching Time between Channels | <5 ms (with no more than 2001 points) |
| Switching Time between Preloaded Settings | <5 ms (with no more than 2001 points) |
Receiver & Dynamic Range Specifications
| Parameter | Value |
|---|---|
| Test Port Input Match (9 kHz to 20 kHz) | >10 dB (without system error correction) |
| Test Port Input Match (20 kHz to 4.5 GHz) | >20 dB (without system error correction) |
| Maximum Nominal Input Level | +13 dBm |
| Test Port Damage Level | +27 dBm |
| Test Port Damage DC Voltage | 30 V |
| Input Noise Level (at or above 4 GHz) | <-125 dBm (at 1 kHz measurement bandwidth, normalized to 1 Hz) |
| Trace Noise Magnitude | <0.004 dB RMS (at 10 kHz IF bandwidth) |
| Temperature Stability | typically 0.01 dB/°C |
Measurement Capabilities & Calibration
| Parameter | Value |
|---|---|
| Measurement Capabilities | Mixed-mode S-parameters, Virtual networks (embedding/de-embedding), Time-domain analysis (DTF) |
Reference Frequency
| Parameter | Value |
|---|---|
| Internal Reference Frequency Accuracy | ±1 × 10^-6 per year (standard), ±1 × 10^-7 per year (with Option B4) |
| External Reference Input Frequency | 10 MHz (standard), 1 MHz to 20 MHz (with Option B4) |
| External Reference Output Frequency | 10 MHz |
Display & User Interface
| Parameter | Value |
|---|---|
| Display Size | 12.1 in |
| Display Resolution | 1280 × 800 pixels |
RF Performance
| Parameter | Value |
|---|---|
| Phase Noise | <-110 dBc/Hz @ 10 kHz offset (1 GHz carrier, typ.) |
| Number of Receivers | 4 (2-port configuration), 8 (4-port configuration) |
Power
| Parameter | Value |
|---|---|
| Power Consumption | typ. 120 W (2-port), typ. 180 W (4-port), max. 350 W |
Environmental
| Parameter | Value |
|---|---|
| Storage Temperature Range | -20 °C to +70 °C |
Corrected Performance
| Parameter | Value |
|---|---|
| Corrected Directivity (100 kHz to 4.5 GHz) | 46 dB |
| Corrected Source Match (100 kHz to 4.5 GHz) | 40 dB |
| Corrected Load Match (100 kHz to 4.5 GHz) | 46 dB |
Receiver
| Parameter | Value |
|---|---|
| Receiver 1 dB Compression Point | +13 dBm (10 MHz to 4.5 GHz, nominal) |
Source
| Parameter | Value |
|---|---|
| Harmonics | <-30 dBc (at -15 dBm source power, typical) |
| Spurious Emissions | <-45 dBc (at -10 dBm source power, > 10 kHz offset) |
Hardware Options
| Parameter | Value |
|---|---|
| Bias Tees (Option R&S ZNB-B1) Max Voltage | 30 V |
| Bias Tees (Option R&S ZNB-B1) Max Current | 250 mA |
| Bias Tees (Option R&S ZNB-B1) Frequency Range | 100 kHz to 4.5 GHz |
| DC Inputs (Option R&S ZNB-B15) Number of Ports | 4 |
| DC Inputs (Option R&S ZNB-B15) Voltage Range | ±3 V / ±10 V (auto-ranging) |
Performance
| Parameter | Value |
|---|---|
| Maximum Number of Channels | 100 |
| Maximum Number of Diagrams | 100 |
Calibration
| Parameter | Value |
|---|---|
| Calibration Methods | TOSM, TRL, TRM, TNA, UOSM, TOM, LRL, LRM |
Technology
Vector Network Analysis
Applications
RF component development, production, and servicing