Lesson 1
IDENTIFY THE COMPONENTS, AND STATE THE CHARACTERISTICS
AND CAPABILITIES OF RADIO SET AN/GRC-193
OBJECTIVE
After completing this lesson, you will be able to identify
the
components and state the characteristics and capabilities of
the
radio set AN/GRC-193.
REFERENCES
This subcourse is based on the contents of TM 11-5820-924-13 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 the lesson rather than on individual or unit experience.
1. INTRODUCTION. Radio set AN/GRC-193 is a rugged, tactical, high-
frequency (HF), single sideband (SSB) radio that can transmit and
receive voice and digital communications.
This radio can operate
while moving or as a fixed station. In this lesson, we will discuss
the basic components, characteristics, and operating controls of
radio set AN/GRC-193.
Also included in the lesson is a list of
auxiliary equipment and accessories for this radio set.
2. COMPONENTS.
The radio set AN/GRC-193 consists of the following
major components (Fig 1):
Receiver-transmitter RT-1209 (Fig 1 (A)).
Amplifier-converter AM-6879 (Fig 1 (B)).
Power amplifier AM-6545 (Fig 1 (C)).
Antenna coupler CU-2064 (Fig 1 (D)).
3. CHARACTERISTICS. Since you know the components of the radio set
AN/GRC-193, you can now direct your attention to the technical
characteristics of this radio set.
Frequency range - 2 to 29,999.9 megahertz (MHz).
Number of frequencies - 280,000.
Frequency spacing - 10 hertz (Hz).
Modes of operation - upper sideband (USB), lower sideband
(LSB), voice, data, continuous wave (CW), and teletypewriter
(TTY) in receive-transmit or receive-only.
Radio frequency (RF) output power - 100 or 400 watts peak
envelope power (PEP).
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