Agilent / Keysight 8643A High-Performance Signal Generator, 1 GHz or 2 GHz
Agilent / Keysight RF Signal Sources. Frequency Range: 252 kHz to 1030 MHz (standard); 252 kHz to 2060 MHz (Option 002), Power Range (dBm): +13 dBm to −137 dBm.
- Model
- Agilent / Keysight 8643A
- Calibration
- Available on request
- Price
- $2,005
- Status
- In stock
- RFQ ref
- 8643A
This unit
The Agilent/Keysight 8643A is a signal generator delivering precise RF signal generation from 252 kHz to 1030 MHz (2060 MHz with Option 002). Built for R&D, manufacturing, and service environments, it combines exceptional spectral purity with frequency stability through an oven-controlled timebase and electronic attenuator using solid-state PIN diodes.
Technical Specifications
Frequency Range- Standard: 252 kHz to 1030 MHz
- Option 002 (Doubled Output): 252 kHz to 2060 MHz
- Resolution: 0.01 Hz Output Level
- Range: +13 dBm to −137 dBm
- Overrange: Up to +15 dBm (increased harmonic distortion)
- Accuracy: ±1.0 dB down to −127 dBm Spectral Performance
- SSB Phase Noise @ 1 GHz: −130 dBc/Hz
- Nonharmonic Spurious: −100 dBc up to 1 GHz Modulation
- Standard: Amplitude Modulation (AM), Frequency Modulation (FM), Pulse Modulation
- Internal Synthesizer: 0.1 Hz to 400 kHz (sine and white Gaussian noise); 0.1 Hz to 50 kHz (triangle, sawtooth, square)
- Waveforms: Sine, square, triangle, sawtooth, white Gaussian noise, two-tone capability
- Pulse Modulation (Option 008): Rise/fall times 80 dB on/off ratio, variable delay and width 50 ns to 999 ms
- VOR/ILS Simulation (Option 009): Avionics testing capability Sweep Capabilities
- Digital stepped sweep across entire frequency range
- Linear/logarithmic selection
- Sweep times: 0.5 to 1000 sec
- Phase-continuous sweep: 40 MHz span available at maximum carrier frequency
Key Features
- Electronic attenuator with PIN diode solid-state components for reliability and precision level setting
- High-stability oven-controlled timebase (standard configuration)
- 0.01 Hz frequency resolution for exacting calibration and measurement applications
- Two independent modulation sources available simultaneously
- Internal frequency counter (Option 011): 20 Hz to 2 GHz range
Typical Applications
- Component characterization and manufacturing test
- Receiver and transceiver development
- Avionics system simulation and validation
- Filter and amplifier evaluation
- Phase noise and spectral purity analysis
Compatibility & Integration
- GPIB (IEEE 488.2-1987) remote control interface
- Member of Agilent/Keysight signal generator family
- Available options: High Stability Timebase (001), Doubled Output (002), Rear Panel Connections (003), Low Noise (004), and others
Specifications
| Parameter | Value |
|---|---|
| Frequency Range | 252 kHz to 1030 MHz (standard) |
| 252 kHz to 2060 MHz (Option 002) | Power Range (dBm) | '+13 dBm to −137 dBm |
Agilent / Keysight 8643A — Repair & Calibration Service
Aumictech offers NIST-traceable calibration and repair for the Agilent / Keysight 8643A. 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 8643A 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 8643A price
This Agilent / Keysight 8643A is listed at $2,005. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.
Agilent / Keysight 8643A calibration cost
NIST-traceable calibration for the Agilent / Keysight 8643A 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 →
