Lesson 1. Install or Reinstall AN/GRC-193A Radio Set (IHFR)

Lesson 1

INSTALL OR REINSTALL IHFR RADIO SET AN/GRC-193A

OBJECTIVE

Upon completion of this lesson, you will be able to install or reinstall the

AN/GRC-193A radio set in an MT-6232 rack mounted in an S-280A shelter.

REFERENCES

This subcourse is based on TM 11-5820-924-13, TM 11-2300-475-13&P-2, and other

materials approved for US Army instruction.

However, development and progress

render the text continually subject to change.

Therefore, base your examination

answers on material presented in this subcourse rather than on individual or unit

experience.

1. INTRODUCTION. As maintenance personnel, your job is to ensure that radio sets

are operating at their full potential. In other words, your job is to make sure

that the radio set operates as it should, when it must, and as the mission

dictates.

2. RADIO CONFIGURATION.

There are three primary configurations or variations that

you may encounter.

a. The configuration that is likely to be most common is

mounted on MT-

6232/GRC-193 with the CU-2064 facing forward.

(See Figure

1.) The other

configuration using the MT-6232/GRC-193 has the CU-2064 mounted

in reverse for

convenience in routing the radio frequency (RF) cable to the

(See

Figure 2.)

Figure 1.

AN/GRC-193A (front view).