The Agilent/Keysight 8642A is a synthesized signal generator delivering precise RF signal generation from 100 kHz to 1057.5 MHz. Built for high-performance RF receiver measurements and demanding RF applications, it combines broad frequency coverage with exceptional spectral purity and flexible modulation capabilities.
Technical Specifications
Frequency Performance
• Range: 100 kHz to 1057.5 MHz
• Resolution: 1 Hz
• Accuracy: 2% of setting
• Continuous single-band coverage across full frequency span
Output Level
• Range: −140 dBm to +20 dBm
• Resolution: 0.01 dB
• Absolute accuracy: ±1 dB down to −127 dBm
• Maximum output: +20 dBm (bands 1–7), +18 dBm (bands 8, HET), +16 dBm (band 9)
• Impedance: 50 Ω nominal
• SWR: <1.5:1 at levels <0 dBm; 10 kHz offsets)
• Harmonic spurious: −30 dBc at ≤+10 dBm
• Residual FM: <1.2 Hz at 500 MHz; <2 Hz at 1000 MHz (0.3–3 kHz BW)
• Residual AM: <0.01% AM rms (0.3–3 kHz BW)
• Third-order intermodulation: 40 dB on/off ratio, <400 ns rise/fall time (10%–90%), 100 kHz max repetition, 2 µs minimum width
• Internal modulation oscillator: 20 Hz to 100 kHz, ±2% accuracy
Stability
• Aging rate (standard): ±2 ppm/year
• Aging rate (Option 001): <10e-9/day after 8 days warmup
– Key Features
• 1 Hz frequency resolution across entire 1 GHz+ span
• High output power eliminates need for external amplifiers
• Low phase noise enables sensitive receiver testing
• Four modulation types with internal function generator
• Excellent frequency stability options
– Typical Applications
• RF receiver sensitivity and selectivity measurements
• Spurious rejection testing
• Intermodulation and harmonic distortion analysis
• Modulated signal stimulus for audio and data paths
– Compatibility & Integration
• HP-IB (IEEE-488-1978) interface with Listener, Talker, and Controller functions
• Full HP-IB compliance: SH1, AH1, T5, TE0, L3, LE0, SR1, RL1, PP1, DC1, DT1, C1, C3, C28, E2
