LESSON 1
Prepare/Operate Communications Security Equipment
TASK: Prepare and Operate TSEC/KY-57.
CONDITIONS:
1.
Performance: Given a TSEC/KY-57, KYK-13 W/TEK, fill cable, battery box, handset, Lesson 1
materials, extracts of TM 11-5810-256-10 and TM 11-5810-256-OP-2, and a qualified SOJT monitor.
2.
Performance oriented: Given lesson materials, extracts of TM 11-5810-256-10 and TM 11-5810-
256-OP-2, paper, pencil, and without supervision.
STANDARDS:
1.
Performance: Correctly assembles and loads the TSEC/KY-57 IAW performance measures 1
through 13 within one out of two attempts and within 10 minutes.
2.
Performance oriented: Demonstrates competency of the task skills and knowledge by correctly
responding to 70 percent of the multiple choice practice exercise examination covering Lesson 1.
References: TM 11-5810-256-10, TM 11-5810-256-OP-2
Learning Event 1:
Prepare and Operate the TSEC/KY-57.
1.
Situation: In a tactical environment, you are required to provide secure radio communications from
1st Plt to the company CP. You will use Communications Security Equipment TSEC/KY-57 and its
ancillary devices to secure your radio transmissions. You will assemble and load the KY-57 to prepare
it for use with a designated combat net radio.
2.
Communications Security Equipment, TSEC/KY-57 and its ancillary devices, is used to secure FM
radio communications. Present day doctrine dictates that all FM radio communications must be secure
to afford them protection from interception and deception. VINSON, the KY-57 and associated devices,
accomplishes secure operation through the use of TEK (random code). In order to communicate, both
stations must be using the same key. Let's look at this equipment.
1
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