Keysight (Agilent) 8568A 100 hz - 1.5 ghz Spectrum Analyzer

Description of Keysight (Agilent) 8568A

The 8568A Spectrum Analyzer is a high performance analyzer for bench or HP-IB systems use that operates over the 100Hz to 1500MHz frequency range. A sophisticated phase lock system combines "synthesizer like" tuning and frequency accuracy with superior local oscillator spectral purity to make narrow resolution bandwidths practical at RF frequencies. Designed around its own internal bus and controlled by a microcomputer to yield significant improvements in RF measurement performance. Amplitude measurement range: -137 dBm to +30 dBm.

Key Specifications

The 8568A was a landmark instrument due to its synthesizer-controlled tuning and high spectral purity.

• Frequency Range: 100 Hz to 1.5 GHz.

• Resolution Bandwidth (RBW): As narrow as 10 Hz to 3 MHz, allowing for the measurement of powerline-related sidebands.

• Amplitude Range: -137 dBm to +30 dBm.

• Spectral Purity: Noise sidebands are typically >80 dB below the peak of a CW signal at a 300 Hz offset (in 10 Hz RBW).

• Components: The system is modular, consisting of an 85680A RF Section and an 85662A IF/Display Section

• Microprocessor Control: One of the first analyzers to exploit internal digital processors for automatic internal checks and easier operation.

• Digital Storage: Provides a flicker-free display with digital storage and on-screen annotation.

• HP-IB Compatibility: Fully programmable via the Hewlett-Packard Interface Bus (IEEE-488), making it suitable for automated testing environments.

• Calibrated Display: Features a 90-dB log display and an internal frequency standard with an aging rate of less than

  parts per day.