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Oil and Fan Cooling Enable 4 kW Attenuation

Oil-Cooled
4 kW RF Attenuator

Bird’s 8329-300 is a rugged, oil-cooled RF attenuator designed for high-power, continuous-duty RF applications—delivering up to:

  • 4 kW with integrated blower cooling

Ideal for:

  • Reducing RF power and VSWR
  • Harmonic and intermodulation analysis
  • Long-duration system and transmitter testing
  • Mission-critical RF environments requiring stable performance

Whether used in standalone form or paired with a blower assembly, the 8329-300 offers durable construction, conservative power ratings, and Bird’s trusted performance—even under sustained, high-load conditions.

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Blower Selection Guide

8329-300 Power handling increases when used with forced convection blower assemblies.

Blower Model
Load
Frequency Range
Max Power Rating with Blower
Power Requirements
Cooling Method
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BA-300-115
8329-300
DC- 500 MHz
4 kW
115 VAC Fan
Forced-air + Oil-cooled
BA-300-230
8329-300
DC- 500 MHz
4 kW
230 VAC Fan
Passive Oil-cooled
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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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