4304A Wattmeter

Broadband Power Measurement with Built-In Range Switching

The Bird 4304A simplifies RF power measurement by combining the trusted mechanical design of the Model 43 with a broadband plug-in element and a 5-position range switch.

It’s built for technicians who want to cover a wide frequency range without carrying a full case of elements. With support for CW, AM, FM, and TV modulation, the 4304A is a durable, portable solution for everyday RF power monitoring from 25 to 1000 MHz.

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Why Choose the 4304A?

One Element, Five Power Ranges

The pre-installed 4304-1 broadband element and front-mounted range switch let you measure multiple power levels without changing slugs.

Covers 25 to 1000 MHz

Suitable for most general-purpose RF systems, including broadcast, LMR, and telecom.

Rugged and Portable

Shock-mounted meter, aluminum housing, and quick-change connectors make it ready for field use.

How It Works

The 4304A uses a built-in broadband plug-in element to sample RF energy from a 50-ohm coaxial line. A directional coupler senses forward and reflected power, while the analog meter displays the result.

The 5-position range switch lets you scale full-scale readings from low to high power without physically swapping elements—simplifying setup and minimizing handling.

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Fast, Flexible RF Power Measurement

Quick diagnostic checks without changing elements

Broadcast and LMR maintenance

Use with load to create an absorption wattmeter setup

4304A Model Specification

Model Number

4304A Buy Now

25 MHz to 1.0 GHz

5-500 W

± 5% of full scale

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FAQs

Can I use other Bird elements with the 4304A?

What signals can the 4304A measure?

What does the range switch do?

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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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A Legacy of Trust. A Future of Simplicity.

For decades, Bird’s element-based wattmeters have set the standard for accuracy, durability, and technician-trusted performance. That legacy continues—but so does the evolution.

Whether you prefer the familiar reliability of plug-in elements or you're exploring the ease of new generation RF power measurement, Bird is here to support your journey.

Our expanding lineup of RF power measurement tools offers options for every workflow—rooted in accuracy, built for what’s next.

Because in RF, confidence doesn’t come from guessing. It comes from Bird.

calm middleaged amateur radio operator at his station-1