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CHAPTER 1
INTRODUCTION
Section I. GENERAL INFORMATION
1-4. Preparation for Storage or Shipment
1-1.
Scope
This manual describes Radio Set AN/PRC-68 (fig. 1-1)
Refer to Chapter 2, section VI for administrative
and provides instructions for organizational and direct
storage instructions.
support maintenance.  Maintenance allocation chart
1-5. Reporting Equipment Improvement
(MAC) is included in appendix B.
Recommendations (EIR)
1-2. Maintenance Forms, Records, and
EIR can and must be submitted by anyone who is aware
Reports
of an unsatisfactory condition with the equipment
Department of the Army forms and procedures used for
design or use. It is not necessary to show a new design or
equipment maintenance will be those prescribed by TM
list a better way to perform a procedure, just simply tell
38-750. The Army Maintenance Management System.
why the design is unfavorable or why a procedure is dif-
Marine Corps units should refer to the current edition
ficult. EIR maybe submitted on standard Form (SF) 368
of TM 4700-15/1.
(Quality Deficiency Report). Mail directly to Comman-
1-3. Destruction of Army Materiel to Pre-
er, US Army Communications - Electronics
vent Enemy Use
ATTN: DRSEL-ME- MQ, Fort
Comnand,
Monmouth, NJ 07703. Marine Corps units mail to Com-
Demolition and destruction of electronic equipment will
manding Gereral, Marine Corps Logistics Base (P840),
be under the direction of the commander and in accor-
Albany, GA 31704. A reply will be furnished to you.
dance with TM 750-244-2.
Section II. EQUIPMENT DESCRIPTION AND DATA
1-6. Equipment Characteristics, Capa-
1-7. Location and Description of Major
bilities, and Features
Components
Radio Set AN/PRC-68 (radio set) is a hand-held
Figure 1-2 shows the major components of the radio
receiver-transmitter that provides ground-to-ground
set. The unit consists of: the rt unit, which contains the
voice communications in the 30 megahertz (MHz) to 79.
eight modules and all necessary operating controls and
95 MHz band. The unit is capable of secure speech
connectors; the module cover, held by two captive
operation when it is used with the secure voice module
screws to the chassis frame, which also holds the fre-
(svm). The radio set can be used with a short or long
quency changing and alignment tool; the battery, which
antenna, with a standard military handset such as H-
snaps onto mating connectors on chassis frame; the bat-
138/U, H-189/U or H-250/U, or with its built-in speak-
tery case, held on by two latches; and the short antenna.
er-microphone.
GENERAL
Long antenna ------------------------------------------ 1 mile ( 1.6 Kilo-
Frequency -------------------------------------------------30.00 MHz--79.95
meters)
MHz
Operating temperature range ------------------------- - 40F to + 159F
Available
channels--------------------------------------1000
(-40C to +
Channel spacing
-----------------------------------------50 kHz
65C)
Preset channels-------------------------------------------10
Weight (including battery and antenna,
Preset channel spacing----------------------------------200 kHz
no headset)---------------------------------------------- 40oz. (1.30 kg)
Modulation ------------------------------------------
frequency modula-
Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . 8.35 in (212.0 mm)
tion (fro)
x 3.80 in (96.0
Range
mm)
Short antenna -----------------------------------------330 yards (300
x 1.52 in (38.6
meters)
mm)
Change 1 1-1


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