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8920 Series – 5 kW, Oil-Cooled RF Terminations

5 kW, Oil-Cooled RF Terminations

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.

Features

  • An 8890-008 over-temperature interlock safety switch is optional
  • This series includes Models 8922D8926D and 8927D for Digital Broadcast (VSWR = 1.065 max., 470-860 MHz)

Model Selections

Model Connector Dimensions, L x W x H Weight
8921 QC-LC(F) 32.8 in x 9.5 in x 26.9 in
(832 mm x 241 mm x 681 mm)
119 lbs. (54 kg)
8922 1 5/8 in EIA, Flanged 32.8 in x 9.5 in x 26.9 in
(832 mm x 241 mm x 681 mm)
119 lbs. (54 kg)
8922D 1 5/8 in EIA, Flanged 32.8 in x 9.5 in x 26.9 in
(832 mm x 241 mm x 681 mm)
119 lbs. (54 kg)
8926 3 1/8 in EIA, Flanged 32.8 in x 9.5 in x 26.9 in
(832 mm x 241 mm x 681 mm)
119 lbs. (54 kg)
8926D 3 1/8 in EIA, Flanged 32.8 in x 9.5 in x 26.9 in
(832 mm x 241 mm x 681 mm)
119 lbs. (54 kg)
8927 3 1/8 in EIA, Unflanged 32.8 in x 9.5 in x 26.9 in
(832 mm x 241 mm x 681 mm)
119 lbs. (54 kg)
8927D 3 1/8 in EIA, Unflanged 32.8 in x 9.5 in x 26.9 in
(832 mm x 241 mm x 681 mm)
119 lbs. (54 kg)

 

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Product Specifications
Product Description
Item No 8920 Series
Item Name 5 kW, Oil-Cooled Terminations
Power Rating 5000 W continuous
Frequency Range and VSWR DC - 1 GHz @ ≤ 1.10 max.
1.065 max., 470-860 MHz for "D" Models
Temperature 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 12 lb (5.7 kg)

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