The Agilent HP E4432A ESG-D3000A is a digital signal generator engineered for wireless communication receiver test, component characterization, and local oscillator applications. It delivers precise RF signal generation across 250 kHz to 3 GHz with flexible digital modulation formats including GMSK, π/4 DQPSK, and GFSK. The instrument combines broad frequency coverage, fine-resolution output control, and fast modulation switching to support production throughput and measurement reliability in demanding test environments.
Technical Specifications
Frequency Performance
• Frequency range: 250 kHz to 3000 MHz
• Resolution: 0.01 Hz
• Accuracy tracks internal timebase
• Modulation switching: < 45 ms (on), < 35 ms (off), typical
Output Power
• 250 kHz to 1000 MHz: +13 dBm to −136 dBm
• 1000 MHz to 3000 MHz: +10 dBm to −136 dBm
• 3000 MHz to 4000 MHz: +7 dBm to −136 dBm
• Level resolution: 0.02 dB
• Level accuracy (23 ±5°C): ±0.5 dB (+7 to −127 dBm), ±1.5 dB (< −127 dBm)
• Output impedance: 50 ohms
• SWR: < 1.4:1 (250 kHz–2 GHz), 2 GHz–4 GHz)
• Reverse power protection: 50 W (250 kHz–2 GHz), 25 W (> 2 GHz–4 GHz)
• Maximum DC voltage: 50 V
Reference Oscillator
• Standard stability: ±2 ppm/yr aging, ±1 ppm temperature (0–55°C), ±0.1 ppm line voltage
• High stability option (1E5): ±0.1 ppm/yr or ±0.0005 ppm/day (after 45 days), ±0.05 ppm temperature, ±0.002 ppm line voltage
• 10 MHz reference output: > 0.35 Vrms into 50 ohm load
• External reference input: 1, 5, 10 MHz
Modulation
• Built-in formats: GMSK, π/4 DQPSK, GFSK
• GMSK data rate: 270.83 kbits/sec (adjustable 163–300 kbits/sec)
• Gaussian filter: Bbt = 0.3 default
• AM accuracy: < ±(5% + 1%)
• FM deviation accuracy: < ±(3.5% + 20 Hz)
• Phase modulation THD (1 kHz): 17 dB
• Power level switching < 25 ms typical
• Frequency resolution to 0.01 Hz for precise tuning
• Dual reference stability options for critical metrology
– Typical Applications
• Receiver sensitivity and selectivity testing
• Component validation for RF subsystems
• Local oscillator generation in test systems
• Wireless standards compliance measurement
– Compatibility & Integration
• 50 ohm output for direct connection to standard RF test equipment
• External reference capability for synchronized multi-instrument test benches
