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11-5820-919-40-1
NOTE
REFERENCE
DATA.
The following paragraphs provide
1-9.
Use only test equipment that is
Failure
properly calibrated.
the reference data required for planning
maintenance of the radio set and related
to do so may provide erroneous
and misleading performance or
equipment.
fault
indications.
TECHNICAL
CHARACTERISTICS.
Tech-
1-14.
The special tools, materials,
nical characteristics for the radio set
fabricated test cables and fixtures
are listed in table 1-1.
required for field maintenance of the
The radio
EQUIPMENT
SUPPLIED.
radio set are listed in table 1-5.
set and accessory equipment that is sup-
SPECIAL
MAINTENANCE
FACILITY
plied in the transit case are listed in
There are no, special
REQUIREMENTS.
maintenance facility requirements for
EQUIPMENT NOT SUPPLIED.
Table
the radio set.
1-3 lists the equipment used with the
LIST OF PUBLICATIONS.
radio set that is not supplied in the
lists the current publications applica-
transit case.
ble to the radio set.
The test
SUPPORT
EQUIPVENT.
equipment required to perform field
maintenance of the radio set is listed
Equivalent test equipment
in table 1-4.
may be used.
TECHNICAL
CHARACTERISTICS
Description
Characteristic
I
RADIO SET
AN/PRC-104 (Radio Set)
2.0000 to 29.9999 MHz in 0.0001 MHz (100 Hz)
Frequency
Range
increments (280,000 possible frequency
settings)
1 ppm for -51F (-46C) to 1600F (+710C )
Accuracy
(*2 to 30 Hz of setting) from 2 to 30 MHz,
respectively
Single
Sideband
(selectable
USB
or
LSB)
Operating
Modes
Voice/cw (Morse or burst cw at 300 wpm)
Data (FSK or DPSK Up to 2,400 bps),
compatible with 75 baud military teletype
Receive
only
(inhibits
transmit
operation)
150 ohms, -56 dbm (voice), or 6 mv rms
Audio
Input
600 ohms, 0 dbm (data), or 0.77 vrms
and
Level
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