The Rohde & Schwarz ZNLE4 is a two-port vector network analyzer for S-parameter measurements across 1 MHz to 4.5 GHz. The instrument integrates a Windows 10 PC for standalone operation without external computing hardware. A 10.1-inch WXGA capacitive touchscreen with multi-touch gesturing enables rapid, intuitive instrument control. Compact dimensions (408 × 186 × 235 mm) and 6 kg weight support both benchtop and field deployment.
Technical Specifications
Frequency & Dynamic Performance
• Frequency range: 1 MHz to 4.5 GHz (optional R&S®ZNLE-B100 extends to 100 kHz)
• Dynamic range: Up to 120 dB typical
• Trace noise: 0.001 dB typical at 10 kHz measurement bandwidth
• Noise floor: −130 dBm/Hz typical
• Amplitude resolution: 0.01 dB
• Maximum input level: +15 dBm
• Output power: Up to 0 dBm
• IF bandwidth: 1 Hz to 500 kHz in 1/1.5/2/3/5/7 steps
• Frequency resolution: 1 Hz
Frequency Stability
• Static frequency accuracy: ±5 × 10⁻⁷ (achievable initial calibration)
• Aging per year: ±1 × 10⁻⁶
• Temperature drift (+5 °C to +40 °C): ±1 × 10⁻⁶
Measurement Resolution
• Measurement points per trace: 1 to 5001
• Impedance: 50 Ω
• Test port connector: N (f)
– Key Features
• Bidirectional S-parameter measurements (S11, S21, S12, S22) on passive components
• Manual and automatic calibration kit support
• De/embedding and fixture compensation
• Sweep times from 2.4 ms (201 points, 100 kHz IFBW) to 16.7 ms (401 points, 100 kHz IFBW with correction)
• Time domain analysis available via R&S®ZNL-K2 option
• Distance-to-fault measurements available via R&S®ZNL-K3 option
– Typical Applications
• Component and filter characterization
• Cable and transmission line analysis
• Amplifier and oscillator measurements
• Antenna impedance and reflection measurements
• Manufacturing test and quality assurance
– Compatibility & Integration
Standard N-type female connectors ensure compatibility with industry-standard RF test fixtures and cable assemblies. Windows 10 integration enables data export and third-party software connectivity.
