Krohn-Hite 3103A Wide Range Band Pass Filter

The Krohn-Hite 3103A is a wide-range bandpass filter designed for precision signal filtering in various electronic testing and measurement applications. It features a broad frequency range, selectable bandwidth, and low distortion, making it suitable for audio, vibration, and general-purpose signal conditioning. The 3103A offers both high-pass and low-pass filtering options with selectable slopes, ensuring versatility in signal processing tasks.

Model
Krohn-Hite 3103A
Calibration
Available on request
Price
$850
RFQ ref
3103A
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This unit

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.

Specifications

ParameterValue
Frequency RangeWide Range

Krohn-Hite 3103A — Repair & Calibration Service

Aumictech offers NIST-traceable calibration and repair for the Krohn-Hite 3103A. All calibrations are performed to NIST-traceable standards and ship with a certificate. Turnaround is typically 1–3 business days after receipt.

Standard Cal
$450
Pass/fail cert + NIST sticker
Cal with Data
$650
Full NIST cert with measured values

Krohn-Hite 3103A price

This Krohn-Hite 3103A is listed at $850. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.

Krohn-Hite 3103A calibration cost

NIST-traceable calibration for the Krohn-Hite 3103A is $450 (standard — pass/fail certificate and calibration sticker) or $650 (full measured data at every test point, reference standards documented, traceability chain included). Turnaround is 1 to 3 business days after receipt. See full calibration details →