300 Watt RF Attenutors

300 Watt RF Attenutors

300 Watt | Convection-Cooled RF Attenuators

High-Capacity Attenuation with Rugged, Passive Performance.


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.

Conservatively Rated for 300 Watts

Designed for high-power RF systems where reliability and signal control are critical.

Passive Convection Cooling

Performs under load without fans or power sources just install and go.

Fully Shielded Construction

Minimizes interference and radiation, preserving the accuracy of your system and measurements.


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