2500 Watts DC to 2.5 GHz
5000 Watts w/BA-300 Optional Blower Assembly
8890-300 Termaline® RF Coaxial Termination
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2.5 kW, Oil-Cooled, LC Female or Type N Female
- Rugged load for high power base station RF testing up to 2.4 GHz.
- Oil-assisted (vented) convection cooling for safe, continuous operation to 2.5KW.
- Add blower option BA-300 for 5 KW Continuous operation
- Add thermal switch for automatic shutdown if overheated 8890-008
- Shipped with LC connector installed, N(F) optional. Compatible with all Bird QC connectors.
- Simple but rugged design minimizes maintenance requirements.
- Ambient Temperature Range: -40Ã‚Â°C to +45Ã‚Â°C
- Connector: QC-LC(F) or Type N(F)
- Finish: Gray powder coat
- Frequency Range and VSWR:
DC to 1 GHz at 1.1 max
1 GHz to 2 GHz at 1.25 max
2 GHz to 2.4 GHz 1.3 max
- Impedance: 50 ohms nominal
- Load Coolant: 2.9 gal. (11 liters) silicone oil (included)
- Nominal Size: 23 1/8" L x 7" W x 17 3/16" H, (587 mm x 178 mm x 437 mm)
- Operating Position: Horizontal Only
- Power Rating: 2500 W continuous (5 kW with optional BA-300 Blower)
- Weight: 57 lbs. (26 kg)
The Model 8890-300 TERMALINE® Load Resistor is a self-contained high-power 50 ohm coaxial transmission line termination requiring no outside power source or additional equipment. It provides accurate, dependable, and practically non-reflective termination for testing and adjusting transmitters under non-radiating conditions. The load consists essentially of a cylindrical film type resistor immersed in a dielectric coolant. The resistor, individually selected for its accuracy, is enclosed in a special tapered housing which provides a linear reduction in surge impedance directly proportional to the distance along the resistor. This produces the uniform, practically reflectionless line termination from dc to 2.4 GHz.
Bird Specifications and Manual