Agilent / Keysight 8640B Signal generator, -0.5 to 512 MHz
Agilent / Keysight Signal Generators. Frequency Range: 0.5 MHz to 512 MHz (extendable to 1024 MHz with Option 002; down to 10 kHz with HP 11710B Down Converter), Power Range (dBm): +19 dBm to −145 dBm, Voltage / Current Range: 2 V to 0.013 µV into 50 Ω.
- Model
- Agilent / Keysight 8640B
- Calibration
- Available on request
- Price
- $1,746
- Status
- In stock
- RFQ ref
- 8640B
This unit
The Agilent/Keysight 8640B is a phase-locked signal generator delivering continuous RF coverage from 0.5 MHz to 512 MHz with optional extension to 1024 MHz. It combines exceptional spectral purity with flexible modulation, making it ideal for receiver testing, component characterization, and RF system development.
Technical Specifications
Frequency Performance- Frequency range: 0.5 MHz to 512 MHz (0.5 MHz to 1024 MHz with Option 002)
- Frequency extension to 10 kHz available with HP 11710B Down Converter
- Frequency resolution: 1.0 Hz
- Frequency stability (after 2-hour warm-up, locked): <0.05 ppm/hr
- Restabilization time after frequency change: 1 min to within 0.1 ppm Output Power
- Output power range: +19 dBm to −145 dBm (2 V to 0.013 µV into 50 Ω)
- Output level flatness: ±0.5 dB across full frequency range
- Output impedance: 50 Ω Spectral Purity
- Harmonic spurious signals: −100 dBc 520 MHz
- Non-harmonic spurious signals: −100 dBc
- SSB phase noise: >130 dB/Hz at 20 kHz offset (230–450 MHz); >122 dB/Hz at 550 MHz; floor better than −140 dB/Hz Modulation
- Modulation types: AM, FM, Pulse
- Modulation capability: Independent or simultaneous AM/FM
- Internal audio oscillator (Option 001): 20 Hz to 600 kHz
- AM rates: 20 Hz to 3 dB bandwidth (external AC); DC to 3 dB bandwidth (external DC)
- FM deviation: Maximum 1% of lowest frequency in each nominal band
Key Features
- Phase-locked design for frequency stability and precision control
- Built-in counter and phase-lock synchronizer
- Low SSB phase noise suitable for sensitive receiver development
- Flat output response: ±0.5 dB across operating range
- 1.0 Hz frequency resolution for fine-tuning applications
Typical Applications
- Receiver sensitivity and selectivity testing
- RF component characterization
- Modulation performance evaluation
- Phase noise measurements
- Signal fidelity assessment in communication systems
Compatibility & Integration Option 002 extends frequency coverage to 1024 MHz. Option 001 adds internal audio oscillator functionality. HP 11710B Down Converter accessory enables extension to 10 kHz.
Specifications
| Parameter | Value |
|---|---|
| Frequency Range | 0.5 MHz to 512 MHz (extendable to 1024 MHz with Option 002 |
| down to 10 kHz with HP 11710B Down Converter) | Power Range (dBm) | '+19 dBm to −145 dBm | Voltage / Current Range: 2 V to 0.013 µV into 50 Ω |
Agilent / Keysight 8640B — Repair & Calibration Service
Aumictech offers NIST-traceable calibration and repair for the Agilent / Keysight 8640B. 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.
Common Agilent / Keysight 8640B 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.
Agilent / Keysight 8640B price
This Agilent / Keysight 8640B is listed at $1,745.8. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.
Agilent / Keysight 8640B calibration cost
NIST-traceable calibration for the Agilent / Keysight 8640B 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 →
