Bird 300-A-FFE-10 Bi-Directional RF Attenuator

Bird's 300-A-FFE-10 Bi-Directional RF Attenuator is a high-power, fixed 10 dB attenuator in Bird’s convection-cooled 300-A family, designed for laboratory RF testing and high-power signal conditioning. It handles 300 W CW at 40°C (360 W CW at 25°C) with a wide DC-to-2.4 GHz operating range, offering a maximum VSWR of 1.10:1 from DC to 1 GHz and 1.25:1 from 1 GHz to 2.4 GHz, for reliable performance across the spectrum. The unit presents a 50 Ω nominal impedance and is built to operate from −40 °C to +40 °C in any position, making it suitable for benchtop rigs, racks, or external test setups where consistent attenuation is required. Its compact enclosure measures approximately 7.3 in by 5.4 in by 10.9 in and weighs about 12 lb, finished in black anodized aluminum for durability in demanding environments. The 10 dB attenuation value and bi-directional configuration in the 300-A line provide predictable signal reduction in both directions, helping protect receivers and measurement equipment while enabling precise level control during high-power RF tests and equipment characterization.