Product Information
8920 Series, RF Loads are self-contained high-power 50 ohm coaxial transmission line terminations requiring no outside power source or additional equipment. The units provide accurate, dependable, and practically non-reflective termination for testing and adjusting transmitters under non-radiating conditions. The loads consist 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 1 GHz.
- An 8890-008 over-temperature interlock safety switch is optional
- This series includes Models 8922D, 8926D and 8927D for Digital Broadcast (VSWR = 1.065 max., 470-860 MHz)
product specifications:
Item No
8920 Series
Item Name
5 kW, Oil-Cooled Terminations
Power Rating
5000 W continuous
Frequency Range and VSWR
DC – 1 GHz @ 1.1 max.
1.065 max., 470-860 MHz for "D" Models
Temperture Range
-40 to +45 °C
Product Type
Oil-Cooled
Operating Position
Horizontal Only
Connectors
See Model Matrix
Finish
Gray Powder Coat
Dimensions
See Model Matrix
Weight
126 lbs. (57 kg)
Model Selections
| Model | Connector | Diminsions, L x W x H | Weight |
|---|---|---|---|
| 8921 | QC, LC (F) | 30-27/32" x 9-1/2" x 25-13/16" (783 x 241 x 656 mm) |
119 lbs. (54 kg) |
| 8922 | 1-5/8" EIA, Flanged | 30-27/32" x 9-1/2" x 25-13/16" (783 x 241 x 656 mm) |
121 lbs. (55 kg) |
| 8922D | 1-5/8" EIA, Flanged | 30-27/32" x 9-1/2" x 25-13/16" (783 x 241 x 656 mm) |
121 lbs. (55 kg) |
| 8926 | 3-1/8" EIA, Flanged | 32-3/4" x 9-1/2" x 25-13/16" (832 x 241 x 656 mm) |
126 lbs. (57 kg) |
| 8926D | 3-1/8" EIA, Flanged | 32-3/4" x 9-1/2" x 25-13/16" (832 x 241 x 656 mm) |
126 lbs. (57 kg) |
| 8927 | 3-1/8" EIA, Unflanged | 32-3/4" x 9-1/2" x 25-13/16" (832 x 241 x 656 mm) |
126 lbs. (57 kg) |
| 8927D | 3-1/8" EIA, Unflanged | 31-7/8" x 9-1/2" x 25-13/16" (809 x 241 x 656 mm) |
126 lbs. (57 kg) |
Accessories:
QC Series, Quick Change Solderless Connectors
5-1070-2
PMX-200, Silicone Oil