Keysight (Agilent) E4432B Synthesised Signal Generator, 250KHz to 3GHz

The Keysight (Agilent) E4432B is a synthesized signal generator delivering precise RF signal generation from 250 kHz to 3 GHz. It combines low phase noise, excellent spectral purity, and flexible modulation capabilities - making it suited for R&D, manufacturing, and quality assurance environments where signal accuracy and stability are non-negotiable. The instrument features 1 Hz frequency resolution, output power spanning −130 dBm to +13 dBm, and internal modulation waveforms across AM, FM, and pulse modes.

Fast switching (<10 ms) and sub-millisecond settling times enable rapid test sequences without sacrificing measurement confidence.

Technical Specifications

• Range: 250 kHz to 3 GHz


• Resolution: 1 Hz


• Accuracy: ±1 × 10⁻⁶ (internal timebase, standard)


• Stability: ±1 × 10⁻⁷ per year (internal timebase, standard) Output Power


• Range: −130 dBm to +13 dBm


• Level resolution: 0.1 dB


• Level accuracy: ±0.5 dB typical (1 GHz, +10 dBm)


• Output impedance: 50 Ω Spectral Purity


• Phase noise: −110 dBc/Hz at 1 GHz, 20 kHz offset (typical)


• Harmonics: <−35 dBc typical (1 GHz, +10 dBm)


• Non-harmonics: 70 dB on/off ratio, 20 ns to CW pulse width, 50 ns to CW period, 0–100% duty cycle


• Digital modulation: BPSK, QPSK, QAM support available in specific configurations Sweep Capabilities


• Modes: Frequency, list, power


• Sweep time: 1 ms to 1000 s


• Dwell time: 1 ms to 1000 s Dynamic Performance


• Switching speed: <10 ms typical (frequency, amplitude, phase)


• Settling time: <1 ms typical (frequency and amplitude)

Key Features

• Type N RF output connector (50 Ω)


• BNC external reference input


• LCD display with numeric keypad and function keys


• GPIB (IEEE 488.2) rear-panel interface


• Dual voltage operation: 100–120 VAC / 115–230 VAC / 220–240 VAC (47–63 Hz)


• Compact footprint: 177 mm H × 425 mm W × 480 mm D


• Weight: approximately 18 kg

Typical Applications Component and subsystem validation, receiver testing, transmitter characterization, interference and susceptibility studies, and signal path verification across microwave and RF domains.

Compatibility & Integration Standard GPIB interface enables integration into automated test systems and remote instrument control architectures.