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JRC NRD-505

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Desktop Shortwave receiver

The Japan Radio Company NRD-505 was JRCs first non-commercial shortwave receiver geared towards the radio amateur and serious shortwave listener. The NRD-505 tunes 100 kHz to 30 MHz in thirty 1 MHz bands, selected by a large MHz knob. Modes of reception include: RTTY, AM. LSB, USB and CW. This dual conversion superheterodyne circuit provides 0.5 µV 1.6-30 MHz SSB/CW S+N/N=10dB. Digital and analog frequency display is featured. The NRD-505 has an analog S-Meter, RIT, Noise Blanker and attenuator. Supplied filters for AM Wide (4.0 kHz), AM Narrow/SSB/RTTY (2.0 kHz) and optional CW (0.5 kHz). This receiver has modular construction. The rear panel has an SO-239 antenna input jack. There are RCA jacks for Line, Speaker and IF output. There is also a connection for the the matching NSD-505 transmitter. This radio does not have an internal speaker.

Specifications
Type
Desktop Amateur HF Receiver 
Frequency range RX
0.1-30 MHz 
TX
Frequency stability
Tuning steps
Filters
Receiver
Modulations
AM / CW / SSB / RTTY 
Sensitivity
SSB/CW: 0.5 µV (10 dB S+N/N) 
Selectivity
6 > 6 kHz
2.2 > 2.4 kHz
0.5 > optional  
Receiver system
Double conversion superheterodyne 
IF-frequencies
1st: 70.455 MHz
2nd: 455 kHz 
Image rejection
1.6-30 MHz: >70 dB 
Audio output
1 W @ 4 ohms 
Transmitter
Modulations
RF-output
Connections
Antenna
Impedance
50 / 75 Ω 
Electrical
Power requirements
Mains, 110/115/220/230 VAC, 50/60 Hz 
Current drain RX
TX
Physical
Dimensions (w×h×d)
340 × 140 × 300 mm (13.39 × 5.51 × 11.81 in)  
Weight
10 kg (22.1 lbs)  
Form factor
Desktop 
Manufactured
Between 1977 and 1979  
Other features
Memories
Usage
Amateur / Ham radio operators 
Manufacturer
JRC 
Model
NRD-505
Features
RIT, NB 
Manuals, Diagrams and Brochures
 
None available  
 
 
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