Military AN/PRC-140 Handheld Shortwave Transceiver

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Successor of the Military RT-671/PRC-47, developed by Hughes.

The PRC-104 consists of the RT 1209 / URC Transceiver and AM-6874 / PRC-104 Amplifier and tuner.

The RT 1209 / URC is a miniturized SSB- transceiver in USB. LSB or Data mode from 2 to 29.999.9 MHz 100 Hz increments. Connections are provided for handset, headset, CW key or data input. The transmitter's output is a carrier of 250 mW. 26.5V, needed for the transceiver, are provided by the amplifier / tuner unit.

The AM-6874 / PRC-104 Amplifier and tuner amplifies the 0.25W from the transceiver to 20 W, has a built- in tuner and can switch the antenna output to different antennas.

Frequency is selected by decade push buttons.

Unlike its predecessors, there are no operational elements or lamps on the front. These functions are checked by the radio itself, and monitored as special tones to the handsets- especially useful at a tactical blackout.

Frequency range

RX-range
2-29.9999 MHz
TX-range
2-29.9999 MHz
HAM bands
-
Stability
1 ppm
Tuning steps
0.1 kHz
Filters
-

Receiver

Modulations
AM   CW   USB   LSB   FSK  
Sensitivity
SSB: 0.7 µV for 10 dB SINAD
AM: 3 µV for 10 dB SINAD
Selectivity
-
Receiver system
-
IF-frequencies
-
Image rejection
75 dB
Audio output
20 mW max

Transmitter

Modulations
AM   CW   USB   LSB   FSK  
RF-Output
20 W PEP

Connections

Antenna
BNC + Proprietary (military)
Impedance
50Ω

Electrical

Power requirements
20-32V DC
Current drain RX
-
TX
-

Physical

Dimensions (w×h×d)
31.75 × 26.67 × 6.66 mm (1.25 × 1.05 × 0.26 in)
Weight
6.36 kg (14.0 lbs)
Form factor
Handheld
Manufactured
Between 1976 and 19xx in by Hughes and Tadiran
MPN

Other features

Memories
-
Usage
Military communication
Features + options
-
Accessories
-

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