Agilent/Keysight 908A
Agilent / Keysight Signal Generators. Model: 908A.
- Model
- Agilent / Keysight 908A
- Calibration
- Available on request
- Price
- $9,500
- Status
- In stock
- RFQ ref
- 908A
This unit
The Agilent/Keysight 908A is a signal generator engineered for testing and calibration of communication systems, audio equipment, and electronic devices. It delivers stable, accurate signals with minimal distortion and noise to meet demanding laboratory and engineering requirements. The instrument provides flexible modulation capabilities and precise output control across its operating range.
Technical Specifications
Output PowerOutput levels range from +13 dBm down to -143.5 dBm, with level accuracy of ±1 dB (typically 0.5 dB) maintained down to -127 dBm across the operating temperature range of 0 to 55 °C. Signal Purity
Harmonic distortion is specified at <0.5% THD plus noise (typical <1.5%) for FM modulation across all specified deviations and rates. AM depth below 70% exhibits <3.0% THD plus noise. Low single-sideband phase noise supports adjacent channel selectivity testing. Modulation Capabilities
The 908A supports AM and FM analog modulation with FM rates from 400 Hz and 1 kHz internally, and externally from DC/5 Hz to 100 kHz (3 dB bandwidth). FM deviations reach 40 MHz with rates up to 10 MHz. Pulse modulation is also supported. Frequency Stability
Frequency stability in DC mode exhibits <10 Hz per hour drift (typical).
Key Features
- Analog modulation: AM, FM, FM/AM, AM/AM, FM/FM, and Pulse modes
- Wide output range: +13 dBm to -143.5 dBm
- Low THD performance in FM and AM modes
- Low phase noise for precision communication system testing
- Stable frequency reference with minimal drift
- Full temperature stability from 0 to 55 °C
Typical Applications
- Communication system testing and validation
- Audio equipment calibration and verification
- Electronic device characterization
- Adjacent channel selectivity measurements
- Signal integrity and distortion analysis
Compatibility & Integration The 908A integrates into laboratory environments requiring precise analog signal generation with stable output characteristics and low noise performance.
Agilent / Keysight 908A — Repair & Calibration Service
Aumictech offers NIST-traceable calibration and repair for the Agilent / Keysight 908A. 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 908A 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 908A price
This Agilent / Keysight 908A is listed at $9,500. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.
Agilent / Keysight 908A calibration cost
NIST-traceable calibration for the Agilent / Keysight 908A 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 →
