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Chapter 1
Introduction
Bird 8860 Series Semiconductor Loads are portable 50 ohm coaxial RF transmission line terminations. They are
designed for frequency ranges of DC – 28 MHz, specially calibrated for greater stability at 13.56 MHz. They provide
accurate, dependable, and low reflection line terminations. Up to 1000 watts of RF power can be dissipated.
The load has a coolant chamber surrounded by radiator fins. The front and rear fins form mounting flanges which
can be used as supports for freestanding use or as brackets for fixed mounting. A vent plug at the top of the unit
relieves internal pressure from coolant expansion. The load’s simple and rugged design minimizes maintenance
requirements.
Items Supplied
Load Resistor
Note:
Pre-filled with coolant at the factory
Shipping Plug
Vent Plug
Instruction Manual
Items Required but not Supplied
Coupling Kit:
Connects the load to the RF line
Optional Accessories
Interlock Thermoswitch:
Automatically shuts off the generator to prevent overheating of the load.
Figure
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Bird 8860 Series Outline Drawing
