CHAPTER 2. RADIO SET AN/FRC-93 CONFIGURATIONS

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CHAPTER 2

RADIO SET AN/FRC-93 CONFIGURATIONS

transported as common luggage. An antenna unit is

2-1. Introduction

provided for this category of configuration only.

The official configurations for Radio Set AN/FRC-

2-3. Fixed Station Category

93(V)1 through 7 are listed in paragraphs which

follow. There are seven configurations grouped into

There are two configurations applicable to this

three categories: Transportable, fixed station, and

category: The 100 watt, and the 1,000 watt output.

mobile.

The antenna system used can be any antenna system

which will work in the frequency range of operation

2-2. Transportable Category

and an unbalanced feed line of 50 ohms impedance.

A 100-watt single-sideband radio station can be

There are two accessory ac primary power regulators

carried in two suitcases and installed wherever there is

available to the user should the primary power source

a power source of either 110/120 volts ac or 12 to 24

prove undependable. Listed below are these two

volts dc. A 1,000-watt single-sideband station is

regulators and the components of the doublet antenna

made up of three suitcases. Each filled suitcase

system, and the technical manuals which support

weighs between 30 and 40 pounds and may be

them.

Item

Qty

References

Regulator, Voltage CN 1146/FRC-93 (For the AN/FRC-93(V)4 configuration)

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Regulator, Voltage CN 1214/G (For the AN/FRC 93(V)5 configuration)

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NOTE

The complete antenna system consists of one doublet and three mast assemblies. See referenced technical

manual for antenna installation instructions and cautions.

Mast, AB 155A/U

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Doublet antenna (Used with AN/TRC-133A)

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2-4. Mobile Category

blanking filter is provided in both mobile

There are two configurations applicable to this

configurations. The antennas used may be any type of

category: 12-volt dc input primary power, and 24-volt

vehicular whip suitably tuned and loaded for the

dc input primary power. Rf power output is 100

frequency in use. A typical vehicular whip antenna is

watts in both configurations. The noise

as follows:

Item

Qty

Reference

Mast Section MS-116A

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Mast Section MS-117A

Mast Section MS-118A

Mast Base AB-652/GR

Mast Bracket MP-49

NOTE

The above sections are actually the radiating elements of the antenna, and are called mast sections for

purposes of identification. For audio reproduction, the loudspeaker in Control Radio Set -6118/FRC-93

is provided with this configuration. If it is impossible to mount this control unit within the vehicle used

PM Loudspeaker LS-1 may be ordered separately and mounted within the vehicle in the locations

provided for commercial AM radio loudspeakers. The loudspeaker used is as follows:

NSN

Item

Qty

Reference

5965-00-990-8669

Loudspeaker, PM, 4 ohm (Collins LS-1)

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