The Agilent E4433B ESG Signal Generator is a precision RF signal source covering 250 kHz to 4.0 GHz, engineered for wireless communications testing, component characterization, and receiver validation. This instrument delivers extensive modulation flexibility—analog (AM, FM, phase modulation), digital (FSK, MSK, PSK, QAM, and custom I/Q), and pulse modulation—with RF modulation bandwidth to 35 MHz. Output spans -136 dBm to +13 dBm across its operating range, with frequency resolution down to 0.01 Hz and 14-bit I/Q resolution at 40 MHz sample rate. An internal function generator supplies sine, square, ramp, triangle, pulse, and noise waveforms for analog modulation sources. Onboard waveform memory accommodates 1 Msample (4 MB) playback and storage for arbitrary signal construction.
Technical Specifications
• Frequency Range: 250 kHz to 4.0 GHz
• Frequency Resolution: 0.01 Hz
• Output Power: 250 kHz–1 GHz: +13 dBm to -136 dBm; 1–3 GHz: +10 dBm to -136 dBm; 3–4 GHz: +7 dBm to -136 dBm
• Output Impedance: 50 Ohms
• Level Accuracy: ±0.5 dB
• RF Modulation Bandwidth: Up to 35 MHz
• I/Q Sample Rate: 40 MHz
• I/Q Resolution: 14-bit
• Waveform Memory: 1 Msample (4 MB) playback and storage
– Key Features
• Analog modulation: AM, FM, phase modulation
• Digital modulation: 15+ variations of FSK, MSK, PSK, QAM; I/Q modulation
• Pulse modulation with internal function generator
• Step sweep modes: frequency, power, and list
• Internal modulation source waveforms: sine, square, ramp, triangle, pulse, noise
– Typical Applications
• Wireless communications receiver testing
• RF component characterization and validation
• Digital modulation signal generation and validation
• Arbitrary waveform synthesis and playback
– Compatibility & Integration
• GPIB and RS-232 interfaces
• Rack-mountable, lightweight form factor
• Optional dual arbitrary waveform generator (Option UND)
• Optional real-time I/Q baseband generator (Options UN8, UN3, UN4)
• Optional multichannel CDMA personality (Option UN5)
• Expandable architecture for future standards accommodation
