Bird - The RF Experts
8860 Series

1.5 kW, Oil-Cooled RF Terminations

8860 Series, RF Loads are self-contained high-power 50 ohm coaxial transmission line RF terminations requiring no outside power source or additional equipment. They provide 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 series includes Models 8862D and 8864D for Digital Broadcast
(VSWR = 1.056 max., 470-860 MHz)

Model Selections
Model Connector
8860 LC, Female
8861 1-5/8" EIA, Unflanged
8862 1-5/8" EIA, Flanged
8862D 1-5/8" EIA, Flanged
8863 3-1/8" EIA, Unflanged
8864 3-1/8" EIA, Flanged
8864D 3-1/8" EIA, Flanged
product specifications:
Item No
8860 Series
Item Name
1.5 kW, Oil-Cooled Terminations
Power Rating
1500 W continuous
Frequency Range and VSWR
DC - 1 GHz @ 1.1 max., 1 GHz - 2 GHz @ 1.25 max.
(1.065 max., 470-860 MHz for "D" Models)
Temperture Range
-40 to +45 °C
1.5 gal. (5.68 liters) Silicone Oil
Product Type
Digital, Oil-Cooled
Operating Position
Horizontal Only
See Model Matrix
Gray Powder Coat
18-5/8" x 7-1/2" x 13-1/8" (L x W x H)
473 x 184 x 333 mm
31 lbs. (14.1 kg)