Agilent/Keysight 11715A

The Agilent/Keysight 11715A AM/FM Test Source is a precision RF signal generator engineered for modulation analyzer verification and receiver measurement applications. It produces flat, low-distortion amplitude-modulated and frequency-modulated RF signals across multiple frequency bands using a low-noise VCO, double-balanced mixer, and digital divider architecture.

– Technical Specifications

Frequency Outputs
• Fixed output: 560 MHz carrier (crystal-derived, residual FM 400 kHz peak with distortion < 0.025%
• Deviation linearity: ±0.1% to 100 kHz modulation rates; typically ±2.5% to 10 MHz rates
• Residual FM: < 3 Hz rms (50 Hz–3 kHz post-detection bandwidth)

Amplitude Modulation (AM)
• Modulation depth: Up to 99% available (11–13.5 MHz range)
• Distortion: < 0.1% at 95% AM; < 0.05% THD at 50% AM (20 Hz–100 kHz modulation)
• Depth linearity: ±0.2% variation up to 99% AM
• Residual AM: < 0.01% rms (50 Hz–3 kHz post-detection bandwidth)

Power & Environment
• Input voltage: 100–120 Vac (±5%, -10%) or 220–240 Vac (±5%, -10%) at 48–440 Hz
• Power dissipation: 40 VA maximum
• Operating temperature: 0–55°C
• Storage temperature: -55–75°C

Physical
• Dimensions: 102 mm H × 212 mm W × 444 mm D
• Net weight: 4.4 kg (shipping: 6.5 kg)

– Key Features

• Four separate RF outputs for multi-point test configurations
• External modulation source input for custom waveform injection
• Wideband DC-coupled design ensures deviation linearity across wide modulation rates
• Low residual AM and FM minimize measurement uncertainty
• Meets MIL STD 461A (CE03, RE02, CS01, CS02, RS03 at 1 V/m), VDE 0871 (Level B), and CISPR 11

– Typical Applications

• Calibration and performance verification of modulation analyzers
• AM/FM receiver testing and adjustment
• Signal source for RF test benches requiring stable, low-distortion modulated carriers

– Compatibility & Integration

Designed for performance tests and adjustments of modulation analysis equipment. Compact 19-inch compatible form factor integrates into standard laboratory and production test setups.