Keysight / Agilent / HP 03325-66509 Oscillator Board

The Keysight/Agilent/HP 03325-66509 is an oscillator board designed for use in electronic test and measurement equipment. This board generates stable and precise signals, crucial for accurate testing and calibration. It ensures reliable performance within compatible Keysight, Agilent, and HP devices, maintaining signal integrity and contributing to overall system accuracy.

Model
Keysight / Agilent / HP 03325-66509
Calibration
Available on request
Price
$450
Status
In stock
RFQ ref
03325-66509
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This unit

The Keysight/Agilent/HP 03325-66509 is an oscillator board that generates stable and precise reference frequencies for the HP 3325A Synthesizer/Function Generator. This component is essential for maintaining signal integrity and ensuring accurate test and measurement performance across the instrument's full operating range. The board operates with exceptional frequency stability and low phase noise characteristics, making it critical for applications requiring high-resolution frequency synthesis and reliable waveform generation.

Technical Specifications

Model: 03325-66509

Manufacturer: Keysight / Agilent / HP

Product Type: Oscillator Board

Primary Function: Reference frequency generation for HP 3325A

Frequency Stability (Aging Rate): ±5 × 10⁻⁶/year

Frequency Stability (Ambient, 0° to +55°C): ±5 × 10⁻⁸

Phase Noise: Harmonics 65 dB down below 50 kHz

Reference Input: Accepts external frequency reference 0 dBm to +20 dBm into 50 Ω, subharmonic of 10 MHz (1 MHz to 10 MHz typical)

NSN: 5998-01-160-4468

Weight: Approximately 3 lbs

Key Features

Enables HP 3325A sine wave generation from 1 μHz to 20.999 999 999 MHz with 11-digit frequency resolution

Supports square waveform generation to 10.999 999 999 MHz

Enables triangle and ramp waveform generation to 10.999 999 999 kHz

Frequency resolution: 1 µHz below 100 kHz; 1 mHz above 100 kHz

Supports external AM and PM modulation control

Accepts external frequency reference inputs for synchronization

Typical Applications

Precision frequency synthesis and calibration

Waveform generation for signal integrity testing

Harmonic and subharmonic signal generation

Instrumentation requiring stable frequency references

Compatibility & Integration This oscillator board is specifically designed as a component for the HP 3325A Synthesizer/Function Generator. It integrates with Option 001 (high-stability crystal oscillator

OCXO) and Option 002 (High Voltage Output) configurations. Related documentation includes the HP 3325A Operating and Service Manual (03325-90) and Service Manual 03325-90003.

Specifications

ParameterValue
Frequency Range1 μHz to 20.999 999 999 MHz (sine)
1 µHz to 10.999 999 999 kHz (triangle/ramps) | Power Range (dBm)0 dBm to +20 dBm (reference input)

Keysight / Agilent / HP 03325-66509 — Repair & Calibration Service

Aumictech offers NIST-traceable calibration and repair for the Keysight / Agilent / HP 03325-66509. Calibration covers output frequency accuracy, output power level accuracy across the full frequency range, AM/FM/PM/pulse modulation accuracy, harmonic and spurious output levels, and phase noise floor verification. All calibrations ship with a NIST-traceable certificate. Turnaround is typically 1–3 business days after receipt.

Standard Cal
$450
Pass/fail cert + NIST sticker
Cal with Data
$650
Full NIST cert with measured values

Common Keysight / Agilent / HP 03325-66509 faults: YIG oscillator failure (no output or loss of lock), step attenuator wear (output drops or steps at set attenuation), ALC loop failure (uncontrolled output power), I/Q modulator assembly failure. HP/Agilent 836xx series most common faults are YIG oscillator failure and step attenuator contact wear causing output steps or drops at specific attenuation settings. Keysight E4428C/E4438C units most commonly develop ALC loop failure and I/Q modulator assembly faults. YIG oscillator replacement and attenuator service are stocked repairs.

Keysight / Agilent / HP 03325-66509 price

This Keysight / Agilent / HP 03325-66509 is listed at $450. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.

Keysight / Agilent / HP 03325-66509 calibration cost

NIST-traceable calibration for the Keysight / Agilent / HP 03325-66509 is $450 (standard — pass/fail certificate and calibration sticker) or $650 (full measured data at every test point, reference standards documented, traceability chain included). Calibration for this instrument covers output frequency accuracy, output power level accuracy across the full frequency range, AM/FM/PM/pulse modulation accuracy, harmonic and spurious output levels, and phase noise floor verification. Turnaround is 1 to 3 business days after receipt. See full calibration details →

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