The Agilent/Keysight 8621B is a synthesized sweep signal generator delivering precise RF and microwave signal generation from 45 MHz to 20 GHz with 1 Hz frequency resolution. Purpose-built for integration with Agilent 8510 systems, this instrument combines the accuracy of a synthesized source with sweep oscillator speed, making it suited for legacy test configurations and specialized measurement requirements.
Technical Specifications
Frequency Coverage: 45 MHz to 20 GHz with 1 Hz resolution.
Output Power: Maximum calibrated output reaches +13 dBm across the full range. Minimum settable output is –20 dBm (standard) or –110 dBm with Option 001. Power resolution is 0.02 dB.
Spectral Purity: Harmonics suppress to < –50 dBc below 26.5 GHz. Subharmonics remain below –50 dBc between 7 GHz and 20 GHz. Nonharmonically related spurious signals achieve < –60 dBc from 10 MHz to 20 GHz.
Output Impedance: 50 ohms nominal, terminated with a precision 3.5-mm male connector on the front panel.
Physical Dimensions: 178 mm H × 425 mm W × 648 mm D; 27 kg weight.
Environmental Ratings: Operating temperature 0 °C to +45 °C; storage range –40 °C to +70 °C. Humidity tolerance < 95% RH from 0 °C to 45 °C. Maximum operation altitude 2000 m.
– Key Features
• No front panel keyboard or display—remote control via rear panel connections
• 1 Hz frequency resolution for precise spectral placement
• Rear panel output option available
• Extended dynamic range to –110 dBm with power option
• Designed for pollution degree 2 environments
– Typical Applications
Legacy network analyzer systems; component characterization requiring clean spectral output; frequency sweep testing in RF and microwave bands.
– Compatibility & Integration
Optimized for Agilent 8510 measurement systems. Requires external control interface due to absence of local front panel controls.


















