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Introducing
Bird's New
4480A Wattmeter

No elements to swap. No calibration delays. Zero configuration required. Just reliable results, for CW or digitally modulated signals.

No Elements Needed

Start measuring instantly—no need to install or swap field elements.

Superior Accuracy

Industry-leading ±4.0% accuracy for precise power measurements over a wide frequency range.

Wide Frequency Range

Measure CW and digitally modulated signals from 2 MHz to 1 GHz with confidence.

Digital or CW Signals

Accurately measures both digital and CW signals for dependable performance.

See the 4480A
in Action

Discover the key features of the 4480A in just 30 seconds. Watch how its element-free design, precision accuracy, and wide frequency range make it the ideal solution for your RF measurement needs.

Still Using Analog Wattmeters?
Here’s Why It’s
Time to Switch.

You have trusted Bird CW wattmeters for good reason. But RF systems have evolved, and the tools used need to keep up.

The 4480A continues Bird's legacy of thruline measurements, robust durability and trusted accuracy. But it goes further—delivering the speed, clarity, and precision today’s RF environments demand.

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Superior Measurement Accuracy

Analog wattmeters often lack precision at higher frequencies or power levels. The 4480A delivers industry-leading accuracy of ±4.0%, enabling precise power measurements across a broad frequency range and reducing  uncertainty.

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Eliminate the Need for Elements

Analog wattmeters require frequent calibration and element replacement, leading to potential errors and downtime. The 4480A’s element-free design reduces maintenance and improves operational efficiency.

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Wider Frequency Range

Analog wattmeters often have limited frequency coverage due to narrow band elements. The 4480A spans 2 MHz to 1 GHz, making it suitable for high-frequency and broadband testing.

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Reduced Calibration and Setup Time

With analog wattmeters, users must often deal with the hassle of recalibrating or swapping elements when changing measurement parameters. The 4480A eliminates these steps, providing quick and consistent measurements without frequent adjustments.

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Improved Long-Term Reliability

The wear and tear associated with analog wattmeters using elements can degrade performance over time, affecting accuracy. The 4480A’s solid-state, element-free design ensures consistent performance and minimizes maintenance costs.

Digital vs. Analog:
Which Wattmeter Fits Your Work?

Is the 4480A Right for Your Application?

The Bird 4480A is well-suited for applications where high accuracy and reliable power measurements are required across mid to high-frequency ranges (2 - 1000 MHz). It is particularly a good fit for:

Good fit for the 4480A Wattmeter:

  • RF Systems Operating Between 2 MHz and 1000 MHz
  • Medium to High-Power Measurement Needs
  • Portable, Field-Ready Measurements
  • Measurement with Minimal Maintenance Requirements
  • Consistency in Multi-Channel or Multi-Site Systems

Bad Fit for the 4480A Wattmeter:

The Bird 4480A, while highly capable, is not always the best choice for every application. It may not be suitable for:

  • Extremely Low-Frequency RF Applications (below 2 MHz)
  • Systems Requiring Non-50 Ohm Impedance Measurements
  • Extremely Low-Power Measurements (<1 W) 
  • Static, High-Volume Lab 
  • Large-Scale Continuous Monitoring with Advanced Data Logging
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4480A FAQs

Have more questions? Get Expert Help>

How does the 4480A compare to traditional wattmeters when measuring digital signals?

Does the 4480A calculate VSWR automatically?

Can the 4480A accurately measure digitally modulated signals?

Why does ±4% accuracy matter for a wattmeter?

How often should I calibrate my 4480A?

Need Calibration?

Bird Calibration Services

Keeping equipment calibrated is the number one way to ensure performance and longevity. A Bird Calibration means we fully test your equipment and adjust it as needed to ensure it’s meeting specs.

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Make the Switch to the 4480A Today

4480A is perfect if you need...

  • Portable RF measurements without elements
  • Unmatched accuracy
  • Future-proofed RF measurements 
  • Exceptional reliability

 

"Switching to the 4480A was a game-changer. No elements, no  hassle."

Mark T., Field Service Engineer

Get a Quote for the 4480A

Fill in the form, and we’ll send a quote within 1 business day.