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Chapter 1
Introduction
Purpose and Function
The Model 8792 Termaline Load Resistors are designed as compact, low-reflection, and non-radiating termination
for RF transmission lines. Cooled by internal water flow, it generates almost no surface heat, making installation
space minimal and convenient. They can safely dissipate up to 80 kilowatts of continuous power when used in a 50
ohm coaxial transmission line system.
Each model is designed for use with a standard connector of the types common to 6-1/8 inch coaxial lines, and will
maintain a VSWR of less than 1.15 to 1.0 from 1000 Hz up to 800 MHz. These loads are intended for use on CW, AM,
FM, SSB, and W modulation envelopes, and within certain limitation on radar or pulse modes. Information on
applications involving pulse-type signals should be obtained directly from Bird Electronic Corporation.
Description
The Model 8792 equipment consists of a load resistor unit. They have field replaceable resistive element. The
replacement procedure is included in
Optional Equipment
An accessory protective Control System is available as optional equipment. When properly installed, this system
protects the load by shutting off the RF power when water flow is too low or interrupted. Discussions of the flow
control pertaining to
should be ignored when not
applicable.
Direct Power Measurement
When used in conjunction with a Bird Model 6810 Series Thruline Wattmeter or 3127 Series Panel Meters, these
load resistors may be used for direct reading power measurements up to 80 kilowatts.
Emergency and First Aid Procedures for Ethylene Glycol
Eye
Contact —
Immediately flush eyes with plenty of water for at least 15 minutes while holding eyelids open.
Get medical attention.
Skin Contact —
Flush skin with water. If irritation occurs, get medical attention.
Inhalation —
Remove victim to fresh air and provide oxygen if breathing is difficult. Get medical attention.
Ingestion —
Do not give liquids if victim is unconscious or very drowsy. Otherwise, give no more than two glasses
of water and induce vomiting by giving 30 cc (2 tablespoons) syrup of Ipecac. If Ipecac is unavailable, give two
glasses of water and induce vomiting by touching finger to back of victim's throat. Keep victim's head below hips
while vomiting. Get medical attention.
