Typically, this type of laboratory signal filter is calibrated annually (once per year), or in accordance with your quality management system or ISO/IEC 17025 requirements.

Krohn-Hite 3940 Calibration Service
Your Krohn-Hite 3940 Doesn’t Need Guesswork.
It Needs Calibration — Without the Runaround.
Your organization trusts the Krohn-Hite 3940 Dual Channel Filter to tell you the truth.
So why accept a calibration sourcing process built on phone tag, vague quotes, and one‑size‑fits‑all labs?
Rogue Calibration flips that model.
We don’t calibrate your equipment.
We put calibration providers in competition for your business.
What That Means for You
- Access to calibration labs experienced with Krohn-Hite instruments
- Accredited and traceable calibration options
- Documentation suitable for ISO, FDA, and regulated environments
- Clear turnaround times and transparent pricing
- Control to choose the provider that fits your needs and timeline
Whether you’re managing a single Krohn-Hite 3940 calibration or coordinating multiple instruments and locations, Rogue Calibration helps you eliminate guesswork, reduce downtime, and source calibration with confidence.
Better options. Better data. Better calibration sourcing.
Our partners provide traceable electrical calibration services to help ensure measurement accuracy, compliance, and continued usability of your equipment.
Quick Overview
- What it is: Dual-channel programmable signal filter for laboratory and engineering use
- Typical use: Signal conditioning, metrology, calibration, electronic R&D, and industrial measurement
- Status: Discontinued/Obsolete (no longer in production, but some legacy support exists)
The Krohn-Hite 3940 Dual Channel Filter is trusted because it’s engineered for accuracy in demanding environments—but that accuracy only holds if it’s calibrated by experts who truly understand the instrument.
Measurements at this level leave no room for shortcuts or generic adjustments. Expert calibration ensures your Krohn-Hite 3940 is tested against traceable standards, adjusted correctly when needed, and documented properly—so the numbers you see are the numbers you can stand behind.
When decisions, safety, and compliance are paramount, precision isn’t optional. It’s earned through professional calibration done right.


Who is Rogue Calibration?
Built for speed, clarity, and real-world use, Rogue brings a modern approach to a process that hasn’t changed in decades. We're about simplicity... because we know this space and we have the tools to solve this problem We're results-obsessed.
We focus on: Clear requests, Connections with trusted providers, Better outcomes for both sides.
www.roguecalibration.com
Why Krohn-Hite Owners Use Rogue Calibration
Krohn-Hite equipment is widely used across industrial and commercial environments, but finding the right Krohn-Hite 3940 calibration provider doesn’t have to be difficult.
Rogue Calibration saves you time and money by connecting you with experienced labs, competitive pricing, traceable calibration options, and clear turnaround times, so you can choose the right provider with confidence.

We are:
- A calibration inquiry and sourcing service for your Krohn-Hite 3940 Dual Channel Filter
- A neutral connector between equipment owners and service providers
- Focused on saving you time and reducing friction
We are not:
- A calibration lab
- A reseller of calibration services
- Locked to one provider or location
Our goal is simple: give you choices and let the market work for you.
Product Information
- Manufacturer: Krohn-Hite
- Model Number: 3940
- Model Details: The Krohn-Hite 3940 is a dual-channel programmable filter designed for signal conditioning applications, providing precise filtering in a laboratory or calibration environment.
- Category: Dual Channel Filter
- Calibration Discipline: · Electrical Calibration· RF & Microwave Calibration· Voltmeter & Voltage Reference Calibration Lab Services
Why Krohn-Hite Dual Channel Filter Owners Use Rogue Calibration
The Krohn-Hite 3940 Dual Channel Filter is a trusted tool in industrial, commercial, and maintenance environments. But finding the right calibration provider can be time‑consuming.
Rogue Calibration helps you save time and money by:
- Eliminating the need to contact multiple labs
- Encouraging competitive pricing
- Connecting you with providers experienced in Fluke instruments
- Supporting traceable calibration options (ISO / NIST / ANSI, depending on provider)
- Letting you compare turnaround times before you commit
