The Krohn-Hite 3103A is a wide-range band pass filter engineered for precision signal conditioning in test and measurement environments. It combines high-pass and low-pass filtering capabilities with selectable attenuation slopes and configurable bandwidth control to isolate specific frequency content. The instrument delivers low harmonic and intermodulation distortion while maintaining minimal insertion loss, making it suitable for audio analysis, vibration measurement, and general signal manipulation where signal integrity is critical.
## Technical Specifications
**Filtering Architecture**
• Filter Type: Band Pass Filter
• Frequency Range: Wide Range
• High-Pass Filtering with selectable attenuation slopes
• Low-Pass Filtering with selectable attenuation slopes
• Selectable bandwidth control for precise signal isolation
**Signal Performance**
• Low harmonic and intermodulation distortion
• Minimal insertion loss across passband
• Sufficient dynamic range across input signal levels without clipping or overloading
**Electrical Characteristics**
• Input Impedance: 10 kΩ or higher
• Output Impedance: 600 Ω or less
• Standard coaxial connectors (BNC) for input and output
• AC power input
## Key Features
• Benchtop form factor for laboratory and test rack integration
• Low distortion design preserves signal fidelity
• Intuitive front panel controls for filter type, frequency, bandwidth, and slope selection
• Minimal source loading due to high input impedance
• Low output impedance enables direct drive of downstream measurement stages
## Typical Applications
• Audio signal analysis and frequency band isolation
• Vibration frequency measurement and isolation in mechanical systems
• General-purpose signal conditioning for electronic test environments
## Compatibility & Integration
The 3103A accepts standard AC mains power and interfaces via BNC connectors, enabling straightforward integration into existing benchtop and rack-mounted measurement systems.
