HP / Agilent 4204A OSCILLATOR

The HP/Agilent 4204A is a precision sine wave oscillator engineered for laboratory testing, calibration, and system integration where signal accuracy and stability are critical. It delivers stable output across a wide frequency range with exceptional repeatability and minimal drift, making it ideal for demanding B2B measurement and characterization tasks.

– Technical Specifications

Frequency Generation
• Range: 10 Hz to 1 MHz across 4 selectable ranges
• Accuracy: ±0.2% or ±1 Hz (whichever is greater) at 25°C
• Repeatability: Better than ±0.01%
• Digital selection: Up to 36,900 discrete frequencies via four in-line switches plus continuous vernier control
• Stability: Post-warmup drift <10 PPM/minute; temperature coefficient <100 PPM/°C; line voltage variation <100 PPM per 10% change

Output Characteristics
• Signal: Sine wave
• Amplitude: 0 to 10 V RMS into 600 Ω (-60 dBm to +22 dBm); 20 V open circuit
• Source impedance: 600 Ω
• Distortion: <0.3% (30 Hz to 100 kHz); <1% (10 Hz to 1 MHz)
• Hum and noise: 600 Ω maintains waveform purity; lower impedances increase distortion
• Dual voltage operation: 115 V or 230 V (±10% tolerance), 50–60 Hz, 10 W consumption
• 0.2 A slow-blow fuse (HP 2110-0106) for both voltage settings

– Typical Applications

Precision signal generation for component characterization, filter testing, analog circuit validation, and metrology standards verification where frequency accuracy and output stability dominate requirements.

– Compatibility & Integration

Standard output terminals interface with test loads. Optional HP 11004A line matching transformer extends frequency response to 5 kHz–600 kHz range.