The Agilent/Keysight 8565E is a spectrum analyzer engineered for precision RF and microwave measurements across 9 kHz to 50 GHz. Built on synthesized tuning architecture, this instrument delivers exceptional amplitude and frequency accuracy within a MIL-T-28800 rugged enclosure suitable for demanding field and laboratory environments. The 8565E excels in telecommunications, aerospace, military, and research applications requiring wide dynamic range and stable phase noise performance. Its fast digital resolution bandwidths (1 Hz to 3 MHz) enable detailed signal characterization, while marker functions and time-gated measurement capabilities support complex RF analysis. Displayed average noise level ranges from -125 dBm to -165 dBm depending on frequency band, with typical values near -147 dBm. Amplitude accuracy is ±0.5 dB across the measurement range (-125 dBm to +30 dBm).
Technical Specifications
• Frequency Range: 9 kHz to 50 GHz (continuous sweep); optional extension to 30 Hz; preselected above 2.75 GHz
• Resolution Bandwidth: 1 Hz to 3 MHz; standard settings include 1 Hz, 3 Hz, 10 Hz, 30 Hz, 100 Hz
• Phase Noise: -97 dBc/Hz at 1 kHz offset; -113 dBc/Hz at 10 kHz and 30 kHz offsets
• Frequency Accuracy: 135 Hz at 1 GHz (post 15-minute warmup); reference aging rate 1 × 10⁻⁷ per year
• Amplitude Range: -125 dBm to +30 dBm; accuracy ±0.5 dB
• 1 dB Gain Compression: -5 dBm (10 MHz to 2.9 GHz); +0 dBm (2.9 GHz to 6.46 GHz)
• Dynamic Range: ≥70 dB W-CDMA adjacent channel power ratio capability
• RF Input: APC 2.4 mm male, 50 Ω; VSWR <1.5:1 dB (30 Hz to 2.9 GHz), <2.3:1 dB (2.9 GHz to 50 GHz) with 10 dB attenuation
• LO Emission: ≤80 dBm average (10 dB attenuation)
• IF Output: SMA female, 50 Ω at 310.7 MHz – Key Features • Adjacent channel power, channel power, and occupied bandwidth measurements (0.10–99.99%)
• Time-gated measurement capability
• 1 Hz counter resolution with precision timebase
• Measurement personalities for digital radio and phase noise analysis
• Rugged MIL-T-28800 construction for harsh environmental operation – Typical Applications Telecommunications signal analysis, aerospace and defense RF characterization, microwave component testing, and phase noise evaluation.
