- Typical recommendation: every 12 months. Some labs extend or shorten the interval (e.g., 6–24 months) based on usage, environment, and quality-system requirements. If the counter is used as, or relies on, a high-stability timebase, annual verification/adjustment of the internal or external 10 MHz reference is standard practice.

Keysight (Agilent/Hp) 5351A Calibration Service
Your Keysight (Agilent/Hp) 5351A Doesn’t Need Guesswork.
It Needs Calibration — Without the Runaround.
Your organization trusts the Keysight (Agilent/HP) 5351A Microwave Frequency Counter 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 Keysight (Agilent/Hp) 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 Keysight (Agilent/Hp) 5351A 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: Legacy RF/microwave frequency counter (approx. 10 Hz to 20 GHz range) with GPIB control and optional high-stability timebase.
- Typical use: Frequency measurement and verification of RF/microwave sources in R&D, manufacturing, and calibration labs; synchronization to external 10 MHz standards.
- Status: Obsolete (out of production and no longer supported by the OEM; available used and serviceable by third-party labs).
The Keysight (Agilent/HP) 5351A Microwave Frequency Counter 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 Keysight (Agilent/Hp) 5351A 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
Calibration Without the Bureaucracy
Finding Keysight (Agilent/Hp) 5351A calibration can mean multiple calls, slow quotes, and inflexible pricing.
Rogue Calibration simplifies the process.
You submit one request. Qualified calibration providers respond with real options.
You decide who earns the work.

Rather than performing calibrations ourselves, Rogue Calibration acts as your single point of contact.
- You submit a calibration request for your Keysight (Agilent/Hp) 5351A
- We send your inquiry to multiple vetted calibration service providers
- Providers respond directly with quotes, turnaround times, and capabilities
You choose the provider that best fits your needs
No pressure. No obligation. Just options.
Product Information
- Manufacturer: Keysight (Agilent/HP)
- Model Number: 5351A
- Model Details: Legacy microwave frequency counter covering RF through microwave frequencies (up to approximately 20 GHz), widely used for accurate frequency measurements in R&D, production test, and calibration labs. GPIB controllable; supports external 10 MHz reference and optional high-stability timebase.
- Category: 5351A Microwave Frequency Counter
- Calibration Discipline: Electrical Calibration RF & Microwave Calibration ReferenceLevel Electrical Standard (for timebase/frequency standard work)
Why Keysight (Agilent/Hp) 5351A Microwave Frequency Counter Owners Use Rogue Calibration
The Keysight (Agilent/HP) 5351A Microwave Frequency Counter 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
