The Keysight/Agilent/HP 5086-7884 is a low-band switch designed as a YIG tuned harmonic mixer for extending the low-frequency measurement capabilities of compatible spectrum analyzers. This component integrates directly with the 8563E and 8563EC platforms, enabling signal analysis down to 30 Hz and substantially expanding the instruments’ measurement scope into the sub-audio frequency domain. The 5086-7884 functions as a frequency extension module, allowing operators to characterize signals well below the standard low-frequency limits of conventional spectrum analyzers.
## Technical Specifications
• **Product Type:** Low Band Switch / YIG Tuned Harmonic Mixer
• **Manufacturer:** Keysight / Agilent / HP
• **Model Number:** 5086-7884
• **Minimum Operating Frequency:** 30 Hz
• **Component Architecture:** YIG (Yttrium Iron Garnet) tuned harmonic mixer configuration
## Key Features
• Extends compatible spectrum analyzer low-frequency capability to 30 Hz
• YIG tuned design provides stable, temperature-compensated frequency conversion
• Harmonic mixer topology enables sensitive detection across extended frequency range
• Direct integration with host instrument — no external conditioning or interface components required
## Typical Applications
• Sub-audio frequency signal characterization and analysis
• Low-frequency noise and distortion measurements
• DC power supply ripple and transient analysis
• Vibration and mechanical resonance frequency measurement
• Environmental and seismic signal monitoring
## Compatibility & Integration
This module is engineered for primary use with the Keysight/Agilent/HP 8563E and 8563EC spectrum analyzers. The 5086-7884 is also compatible with HP 8562E and 8562EC instruments when integrated within RYTHM assemblies (used alongside part number 5086-7981). Integration provides transparent operation — the host analyzer automatically accesses the extended frequency range without manual mode switching or recalibration.
