DESCRIPTION
The Bird 8920 Series comprises high-power, oil-cooled RF terminations designed for continuous 5000 Watt RF power dissipation with stable 50 ohm impedance. These self-contained coaxial loads use a thin-film resistive element immersed in dielectric oil and rely on natural convection cooling. The series delivers uniform, low-reflection termination from DC to 1 GHz (VSWR 1.10:1), with “D” variants optimised for UHF broadcast (470–860 MHz, VSWR 1.065:1). Rugged construction and radiator fins ensure dependable operation in transmitter testing, RF calibration, and system alignment environments.
| Model Number | Power Rating | Impedance | Connector | Notes | Availability |
|---|---|---|---|---|---|
| 8921 | 5000 Watt | 50 ohm | QC Type, LC (female) | Standard broadband termination | Enquiry Only |
| 8922 | 5000 Watt | 50 ohm | 1-5/8 inch EIA flanged | Common RF interface | Enquiry Only |
| 8922D | 5000 Watt | 50 ohm | 1-5/8 inch EIA flanged | UHF-optimised (470–860 MHz) | Enquiry Only |
| 8926 | 5000 Watt | 50 ohm | 3-1/8 inch EIA flanged | High-power RF system interface | Enquiry Only |
| 8926D | 5000 Watt | 50 ohm | 3-1/8 inch EIA flanged | UHF-optimised (470–860 MHz) | Enquiry Only |
| 8927 | 5000 Watt | 50 ohm | 3-1/8 inch EIA unflanged | Alternate flange option | Enquiry Only |
| 8927D | 5000 Watt | 50 ohm | 3-1/8 inch EIA unflanged | UHF-optimised (470–860 MHz) | Enquiry Only |