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Collins R-392/URR

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Desktop Shortwave receiver

This is the receiver component of another vintage Collins radio system and is usually paired with the T-195 HF transmitter to form GRC-19. It is often said to be a 'little brother' to the venerable R-390 - in the sense that is is ruggedised and simpler but performs just as well. It weighs in at a hefty 55lbs in its water-resistant case and has no power supply of its own - relying on the vehicle it was installed in. It was developed in the late 1940's and fully battle-tried in Korea although stayed in production via Collins licensees (such as Philco, Stewart-Warner and Western Electric) until the mid 1960's.

Specifications
Type
Desktop Military HF Receiver 
Frequency range RX
0.5-32 MHz 
TX
Frequency stability
Tuning steps
Filters
Receiver
Modulations
AM / CW 
Sensitivity
AM: 5-9 µV
CW: 2-3 µV 
Selectivity
Receiver system
Double / triple conversion, 25 tubes 
IF-frequencies
Image rejection
Audio output
Transmitter
Modulations
RF-output
Connections
Antenna
Impedance
50 Ω 
Electrical
Power requirements
25-28V DC 
Current drain RX
3 A max 
TX
Physical
Dimensions (w×h×d)
283 × 293 × 352 mm (11.14 × 11.54 × 13.86 in)  
Weight
23.7 kg (52.3 lbs)  
Form factor
Desktop 
Manufactured
Between 195x and 195x in USA 
Other features
Memories
Usage
Military communication 
Manufacturer
Collins 
Model
R-392/URR
Features
 
Manuals, Diagrams and Brochures
 
None available  
 
 
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