Lesson 3/Learning Event 1
LESSON 3
CIRCUIT CONDITIONING TEST SETS
TASK:
Identify the type of the test equipment, describe the
function of the front panel controls and characteristics of
the test and equalizer equipment.
CONDITIONS:
Given information about the type, use, characteristics and
function of the front panel controls for the test and
equalizer equipment used in circuit conditioning.
STANDARDS:
Demonstrate competency of the task skills and knowledge by
responding to the multiple-choice practice exercise; select
the ONE answer that BEST completes the statement or answers
the question, covering circuit conditioning test sets.
(This objective supports Tasks 113-616-3018, Test Circuit for Impulse Noise,
TD-8; 113-616-3020, Test Circuit for Composite Data Transmission Level, TD-
10; 113-616-3026, Determine Test Tone Level; 113-616-3075, Test Circuit for
Basic Noise, TD-6; 113-616--3031, Perform In-Service QC Tests.)
REFERENCES:
Manufacturer's Manual for Transmission Impairment Measuring
Set (TIMS) 4940A, TM 11-6625-602-12, Test Set Telephone
AN/USM-181, TM 11-6625-2463-12, Noise-Level Measuring Set,
TTS-37B, TM 11-6625-2658-12, Oscilloscope AN/USM-281C, TM
11-5805-673-14 & P, Equalizer Group OA-8804
Learning Event 1: TYPES OF TEST INSTRUMENTS.
Within the DCS technical schedules, the large number of parameters
that have to be satisfied for successful circuit conditioning requires a
large variety of generalized and specialized test equipment items. Further,
some test items are limited to use by circuit conditioners, while others are
used by both circuit conditioners and technical controllers.
Almost all
listed instruments use dynamic testing principles; they perform their
functions by measuring or indicating signal characteristics.
a. General test equipment.
Generalized test equipment items include
several commonly used sets that are found in most technical control
facilities.
These include oscilloscopes, VF signal generators, decibel
meters, volume unit indicators, voltmeters,
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