The Agilent E4425B ESG-AP Series is an analog RF signal generator delivering precise signal generation from 250 kHz to 3 GHz with 0.01 Hz resolution. Built for receiver testing, component characterization, and local oscillator applications across telecommunications, aerospace, and research environments, this instrument combines exceptional spectral purity with flexible modulation capabilities.
Technical Specifications
Frequency Performance
• Frequency range: 250 kHz to 3 GHz
• Resolution: 0.01 Hz
• Accuracy: Matched to timebase accuracy
Output Power
• Maximum output level: +7 dBm
• Minimum output level: –120 dBm
• Attenuator selection: Electronic or mechanical
Spectral Purity
SSB phase noise at 20 kHz offset:
• 500 MHz: < –134 dBc/Hz
• 1 GHz: < –130 dBc/Hz
• 2 GHz: < –123 dBc/Hz
• 3 GHz: < –120 dBc/Hz
Residual FM (CCITT weighting):
• 0.5 GHz: < 0.5 Hz
• 1 GHz: < 1 Hz
• 2 GHz: < 2 Hz
• 3 GHz: < 3 Hz
Modulation Capabilities
• Modulation types: AM, FM, phase modulation, pulse modulation
• Internal modulation source with built-in function generator
• Wideband FM and phase modulation support
Sweep Modes
Step sweep functionality for frequency, power, and list operations.
– Key Features
• Superior level accuracy and stability across the output range
• Outstanding phase-noise performance enabling demanding receiver measurements
• Flexible architecture with upgrade options for evolving test requirements
• Internal arbitrary waveform generation and bit error rate analysis available
– Typical Applications
• Receiver sensitivity and selectivity testing
• RF component characterization
• Local oscillator signal sourcing
• Digital modulation standards testing via optional I/Q baseband generator
• TETRA, CDMA, and W-CDMA adjacent channel power measurements
– Compatibility & Integration
Available mechanical options include rack mount (1CM), front handles (1CN), rack with handles (1CP), and rear panel connectors (1EM). Optional modules support high-stability timebase, pulse modulation enhancement, and dual arbitrary waveform generation.
