Agilent/Keysight 5086-7906 (5086-6906)

The Agilent/Keysight 5086-7906 (5086-6906) is a YIG tuned oscillator (YTO) that generates stable, electronically tunable microwave signals for spectrum analyzer applications. This component enables precise frequency control and continuous swept analysis across extended RF and microwave bands, serving as a critical local oscillator in the 8560E series analyzer family and related instruments. The oscillator delivers clean, phase-stable output with tuning sensitivity of approximately 43 MHz per 1 mA of tuning current, supporting both wide dynamic range and synthesized frequency stepping.

Technical Specifications

• Frequency range: 2 GHz to 20 GHz (YIG oscillator nominal operating band); compatible analyzers achieve 30 Hz to 26.5 GHz continuous sweep


• Tuning sensitivity: 43 MHz per 1 mA of tuning current


• Power supply requirements: +20 V and −10 V


• Tuning current: 42 mA at 1.8 GHz; 110 mA at 4.6 GHz


• Mixer output level: −43.3 dBm (typical); specification range −38 dBm to −45 dBm


• Associated filter insertion loss: −0.14 dB at 3.914 GHz

Key Features

• Electronic tuning across 2–20 GHz core band with extended low-frequency operation to 1.8 GHz


• Continuous frequency sweep capability supporting analyzer measurements from 30 Hz to 26.5 GHz


• Stable output performance with minimal phase noise characteristics


• Current-tuned architecture enabling rapid frequency stepping and synthesis

Typical Applications

• Local oscillator for RF/microwave spectrum analysis


• Broadband frequency sweep in receiver test systems


• Component replacement in field-service and upgrade scenarios for 8560E-series instruments

Compatibility & Integration The 5086-7906 (5086-6906) is a replacement component for Agilent/Keysight spectrum analyzers: 8560E, 8560EC, 8560EL, 8561E, 8561EC, 8562E, 8562EC, 8563E, 8563EC, 8564E, 8564EC, 8565E, and 8565EC series. It integrates into the analyzer's local oscillator and tuning circuits as a modular assembly.