BIRD TERMALINE 8251 Series, Руководство по эксплуатации

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1
Chapter 1 Introduction
Bird 8251 Series Loads are portable, general purpose 50 ohm coaxial RF transmission line terminations. They are
accurate, dependable, and low reflection, dissipating up to 1000 watts of RF power. See
Figure 1 on page 2
for
frequency ranges.
The load has a coolant chamber surrounded by radiator fins. A handle is recessed in the 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.
Applications
Use an 8251 load:

As a substitute antenna for tuning transmitters under nonradiation conditions or for making routine tests
and adjustments.

As a substitute for any circuit loading element.

To measure, with a suitable meter, the power output of coaxially transmitted signals.
Items Supplied

Load Resistor: Pre-filled with coolant at the factory

Shipping Plug

Vent Plug

Instruction Manual