2500W, Oil-Cooled Dry RF Terminations
8890-300 Series, RF Loads are self-contained high-power 50 ohm coaxial transmission line terminations 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.
Features
- Oil-assisted (vented) convection cooling for safe, continuous operation up to 2500W full rated power.
- Compatible with all Bird QC connectors.
- Overload thermoswitch P/N 8890-008 is optional. Free assembly when ordered as a package.
Model Selections
| Model |
Connector |
Dimensions, L x W x H |
Weight |
| 8890-300 |
QC-LC(F) |
25.2 in x 7.5 in x 17.25 in
(638 mm x 190 mm x 437 mm)
|
59 lbs. (27 kg) |
| 8891-300 |
3 1/8 in EIA, Flanged |
25.2 in x 7.5 in x 17.25 in
(638 mm x 190 mm x 437 mm)
|
59 lbs. (27 kg)
|
| 8891D300 |
Digital, 3 1/8 in EIA, Flanged |
25.2 in x 7.5 in x 17.25 in
(638 mm x 190 mm x 437 mm)
|
59 lbs. (27 kg) |
| 8892-300 |
1 5/8 in EIA, Flanged |
25.2 in x 7.5 in x 17.25 in
(638 mm x 190 mm x 437 mm)
|
59 lbs. (27 kg)
|
| 8892D300 |
Digital, 1 5/8 in EIA, Flanged |
25.2 in x 7.5 in x 17.25 in
(638 mm x 190 mm x 437 mm)
|
59 lbs. (27 kg)
|
| 8895-300 |
1 5/8 in EIA, Unflanged |
25.2 in x 7.5 in x 17.25 in
(638 mm x 190 mm x 437 mm)
|
59 lbs. (27 kg)
|