The Keysight/Agilent/HP 5086-7906 is a YIG-tuned oscillator (YTO) module engineered as a local oscillator source for the 8560E series spectrum analyzers. It delivers stable, accurate reference signals essential for precision frequency measurement and signal processing across demanding RF applications.
## Technical Specifications
**Frequency Range:** 3.0 to 7.0 GHz (operational range may extend beyond specified limits).
**Output Level:** Approximately +15 dBm at optimal operation; degraded units may produce +10 dBm.
**Supply Voltages:** +5 V, -15 V, and +15 V. All bias voltages must be applied simultaneously to prevent damage. Ground connection relies on chassis integration.
**Coil Parameters:**
• Main coil resistance: 40 ohms
• FM coil resistance: 2 ohms
• Main coil current: 97 mA at 3 GHz; 157 mA at 8 GHz
## Key Features
The integrated bias board monitors YTO output level and dynamically adjusts oscillator transistor bias to maintain flat frequency response across the operating range. The bias control compares RF detector voltage against a reference set point and modulates the bias voltage accordingly.
Output impedance and tuning sensitivity specifications are defined by the host analyzer interface. The YTO requires concurrent application of all supply voltages for proper function and component longevity.
## Typical Applications
Local oscillator source for spectrum analysis from 3.0 to 7.0 GHz. Supports frequency measurement, harmonic analysis, and signal characterization in laboratory and field environments.
## Compatibility & Integration
**Compatible Analyzer Models:**
8560E, 8560EC, 8560EL, 8561E, 8561EC, 8562E, 8562EC, 8563E, 8563EC, 8564E, 8564EC, 8565E, 8565EC
**Form Factor:** Plug-in module for direct integration into 8560E series chassis.
**Exchange Part Number:** 5086-6906
