- Typical practice is every 12 months under an ISO/IEC 17025-compliant program. Some users extend to 24 months if historical stability is demonstrated; shorten to 6–12 months for heavy use, wide temperature cycling, or when used as a reference in critical measurements. Follow your quality system interval or the instrument/system manufacturer’s maintenance schedule if the attenuator is embedded in a larger instrument.

Calibrate Your Keysight (Agilent/Hp) 33321B
Why Keysight (Agilent/Hp) 33321B Owners Go Rogue for Calibration Sourcing
The Keysight (Agilent/HP) 33321B Programmable Step Attenuator is a workhorse tool — widely used, well understood, and absolutely critical when accuracy matters.
Finding the right calibration provider shouldn’t slow you down. Instead of searching lab directories or settling for the first option you find, Rogue Calibration does the heavy lifting for you, connecting you with qualified providers that meet your technical and quality requirement for Keysight (Agilent/Hp) 33321B calibration.
✓ Fair, competitive pricing
✓ Providers that actually know Keysight (Agilent/Hp) products
✓ Clear turnaround times
✓ Traceable calibration options
✓ Transparency before you commit
Rogue Calibration makes that happen by letting the market do what it does best.
Our partners provide traceable electrical calibration services to help ensure measurement accuracy, compliance, and continued usability of your equipment.
Quick Overview
- What it is: A legacy HP/Agilent/Keysight programmable RF/microwave step attenuator module (coaxial, 50 Ω), typically offering up to ~70 dB in 10 dB steps over a broad frequency range (often DC–18 GHz, variant-dependent).
- Typical use: Level setting, signal conditioning, path loss emulation, and dynamic range management in spectrum analyzers, signal generators, network analyzers, and automated test systems.
- Status: Obsolete (out of production, no longer supported by the OEM); typically available used/refurbished; serviceable and calibratable by third-party labs.
A Keysight (Agilent/HP) 33321B Programmable Step Attenuator doesn’t lie—but it will expose lazy calibration. High‑accuracy measurements demand calibration performed by technicians who understand the 33321B, the specification limits, and the standards behind them.
Expert calibration verifies performance against traceable references, flags drift before it becomes failure and documents every adjustment. This isn’t box‑checking or sticker‑slapping. Its precision enforced. If your work depends on numbers you can defend, Rogue Calibration helps find the right calibration service provider for you.


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) 33321B 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.

Calibration Services for Equipment Owners
Rogue Calibration simplifies calibration sourcing for equipment owners by acting as a single point of entry to a network of qualified calibration service providers. Instead of chasing labs, owners submit one request and receive competitive options for pricing, turnaround, and capability—then choose the provider that fits their needs.
No markups, no lock‑in, just a faster, more transparent way to get critical equipment calibrated.
Product Information
- Manufacturer: Keysight (Agilent/HP)
- Model Number: 33321B
- Model Details: A legacy, programmable coaxial step attenuator module widely used in RF and microwave instrumentation and automated test systems. Typical versions provide up to 70 dB of attenuation in 10 dB steps over a broad frequency range (often DC to 18 GHz), and are remotely controlled for repeatable, switchable attenuation.
- Category: Programmable Step Attenuator
- Calibration Discipline: Electrical Calibration RF & Microwave Calibration ReferenceLevel Electrical Standard
Why Keysight (Agilent/Hp) Programmable Step Attenuator Owners Use Rogue Calibration
The Keysight (Agilent/HP) 33321B Programmable Step Attenuator 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
