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8251N Bird Termination Used

8251N Bird Termination Used

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Additional Features:

  • Power Rating: 1000 W continuous
  • Frequency Range and VSWR: DC-1 GHz @ 1.1 max.; 1 GHz-2 GHz @ 1.25 max.; 2 GHz to 2.4 @ 1.3 max.
  • Temperature Range: -40 to +45 °C
  • Coolant: 1.1 gal. (4.1 liters) Silicon Oil
  • Product Type: Oil-Cooled
  • Operating Position: Horizontal Only
  • QC-N connector for lower-power testing
  • Dimensions: 17-29/32" x 5-15/16" x 8-1/2" (L x W x H) 455 x 151 x 216 mm
  • Weight: 25 lbs., 8 oz. (11.5 kg)
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Specifications

The Bird 8251N, 1 kW, Oil-Cooled Termination is a portable, self-contained general purpose 50 ohm coaxial transmission line termination requiring no outside power source or additional equipment. The loads are Oil-assisted convection cooling for safe, continuous operation up to 1000W full rated power. They provide accurate, dependable, and practically nonreflective termination for testing and adjusting transmitters under nonradiating 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.

Model No

8251N

Condition

Used

Manufacturer

Bird

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