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High-capacity attenuation with rugged, passive performance.

300 Watt RF Attenuators

Bird’s 300 Watt Convection-Cooled RF Attenuators are built for applications that demand serious power handling and consistent performance. Whether isolating devices under test, protecting components, or analyzing signals, these attenuators deliver broadband coverage, robust construction, and maintenance-free operation—even in high-load environments.

With full shielding to prevent stray radiation and a self-cooling design that requires no external power or fans, the 300W Series provides long-term, reliable attenuation trusted by RF professionals worldwide.

 

Why Choose the 300 W Series?

Explore the 300 W Series Line Up

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DC to 2.4 GHz | Bi-Directional Attenuators

300‑A Series

Rugged, bi-directional attenuator with connectors on the same side—ideal for high-power test setups and rackmount systems.

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DC to 2.4 GHz | Bi-Directional Attenuators

300‑WA Series

Uni-directional with a straight-through layout, built for system-level integration where space, shielding, and clarity all matter.

Compare Models

Find the right RF attenuator for your test setup.

Model Number
Frequency Range
Attenuation
RF Connector
Buy Now
300-A-FFN-10 button_text
DC to 2.4 GHz
10 dB
N
300-A-FFN-20 button_text
DC to 2.4 GHz
20 dB
N
300-A-FFN-30 button_text
DC to 2.4 GHz
30 dB
N
300-A-FFN-40 button_text
DC to 2.4 GHz
40 dB
N
300-A-FMN-30 button_text
DC to 2.4 GHz
30 dB
N
300-A-MFN-10 button_text
DC to 2.4 GHz
10 dB
N
300-A-MFN-20 button_text
DC to 2.4 GHz
20 dB
N
300-A-MFN-30 button_text
DC to 2.4 GHz
30 dB
N
300-A-MFN-40 button_text
DC to 2.4 GHz
40 dB
N
300-WA-FFN-10 button_text
DC to 2.4 GHz
10 dB
N
300-WA-FFN-20 button_text
DC to 2.4 GHz
20 dB
N
300-WA-FFN-30 button_text
DC to 2.4 GHz
30 dB
N
300-WA-FFN-40 button_text
DC to 2.4 GHz
40 dB
N
300-WA-MFN-10 button_text
DC to 2.4 GHz
10 dB
N
300-WA-MFN-20 button_text
DC to 2.4 GHz
20 dB
N
300-WA-MFN-30 button_text
DC to 2.4 GHz
30 dB
N
300-WA-MFN-40 button_text
DC to 2.4 GHz
40 dB
N
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Buy it once. Measure right. Keep moving.

Reliable Attenuation for Critical RF Systems

In RF, a weak link costs time, damages equipment, and compromises results. That’s why professionals trust Bird attenuators—to perform where failure isn’t an option.


Whether you need air-cooled for quick swaps, oil-dielectric for high power, or convection-cooled for silent lab precision, Bird delivers proven durability, fast availability, and real support from RF engineers.

Talk to us to get the right attenuator—and get it right the first time.

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