The Agilent/Keysight 8565E is a portable spectrum analyzer delivering laboratory-grade signal analysis across 9 kHz to 50 GHz in a field-deployable package. Built to MIL-T-28800 rugged specifications, it operates reliably from −10 °C to +55 °C in harsh environmental conditions including rain exposure and high humidity. The instrument combines outstanding phase noise performance with displayed average noise levels reaching −149 dBm (10 MHz to 2.9 GHz, 1 Hz RBW) and dynamic range of 100 dB on-screen, enabling detection and characterization of weak signals in complex RF environments.
– Technical Specifications
Frequency Coverage: 9 kHz to 50 GHz internal mixing; 18 GHz to 325 GHz with external mixing. Preselection above 2.75 GHz.
Resolution Bandwidth: Fast digital RBW from 1 Hz to 2 MHz (1, 3, 10 sequence). Option 103 extends to 1 MHz in 1, 3, 10 sequence plus 2 MHz.
Noise Floor: Displayed average noise level −149 dBm (10 MHz to 2.9 GHz, 0 dB attenuation, 1 Hz RBW); −145 dBm (2.9 to 6.46 GHz); −127 dBm (40 to 50 GHz).
Amplitude Range: −149 dBm to +30 dBm displayed. Maximum input: +30 dBm continuous, +50 dBm peak pulse power (100 W).
Frequency Counter: 1 Hz resolution selectable to 1 MHz; ±225 Hz accuracy at 1 GHz (5-minute warm-up).
Environmental: Operating −10 °C to +55 °C; non-operating −51 °C to +71 °C. 95% humidity at 40 °C for 5 days. Drip-proof at 16 liters/hour/sq. ft. altitude capability to 15,000 feet.
– Key Features
• Time-gated measurement for pulsed RF, TDMA, and burst-modulated signals
• Adjacent Channel Power (ACP) testing with digital modulation support
• Occupied bandwidth measurement (0.10 to 99.99 percent)
• Channel and carrier power analysis with 100 dB on-screen dynamic range
• Selectivity <15:1 (RBW ≥300 Hz) and <5:1 (RBW ≤100 Hz) for spectral isolation
• Measurement personalities for digital radio and phase noise characterization
– Typical Applications
Frequency verification, signal troubleshooting, occupied bandwidth compliance testing, weak signal detection in crowded spectrum, pulsed and modulated signal analysis, phase noise evaluation.
– Compatibility & Integration
Precision timebase supports synchronization with external references. Counter output compatible with standard laboratory equipment.
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