Bird Technologies 3128A - Manual (Page 13)

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Chapter 1 Introduction
This publication refers to the Wattcher RF Monitor/Alarm models 3126A, 3127A, and 3128A. The differences between mod-
els are listed in the specifications. All models will generally be referred as a Wattcher Unit throughout this manual.
The information in this instruction book pertains to all models except noted differences referred to in the text.
The Bird Wattcher RF Monitor/Alarm—when installed with a dual port Thruline Line Section and two elements—is
designed for the protection and monitoring of radio frequency transmission systems. The line section is selected to
be compatible with the RF coaxial line used in the transmission system. The elements are selected by the user to
cover the desired power levels and frequency ranges.
Purpose and Function
Abnormal loading conditions cause the transmitter to quickly shutdown, a user selectable audible alarm to sound,
and an alarm LED to flash.
Remote access is available for resetting audible and visual alarms. Fail-safe or non fail-safe modes are user select-
able and the reflected power trip level is adjustable. "Operating Instructions" on page 11 detail these features.
Figure 1 Outline Drawing