Bird - The RF Experts

500 Watt, Oil-Cooled RF Termination

8201, RF Load is a portable, self-contained general purpose 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 2.5 GHz.

  • Rugged portable Bench load for medium power base station RF testing up to 2.5 GHz
  • Oil-assisted convection cooling for safe, continuous operation up to 500W full rated power
  • Quick Change (QC) connectors to minimize the need for adaptors when making critical measurements
  • Low-profile housing with handle for trouble-free operation in the most demanding environments
product specifications:
Item No
Item Name
500 Watt, Oil-Cooled Terminations
Power Rating
500 W continuous
Frequency Range and VSWR
DC to 1 GHz @ 1.10 max.
1 GHz to 2.5 GHz @ 1.25 max.
Temperture Range
-40 to +45 °C
0.9 gal. (3.42 liters) Refined Mineral Oil
Product Type
Operating Position
Horizontal Only
Gray Powder Coat
16.8 in x 6 in x 8.5 in (427 mm x 151 mm x 216 mm)
21 lb (9.5 kg)