JRC NRD-505 Desktop Shortwave receiver

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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.

Frequency range

RX-range
0.1-30 MHz
TX-range
-
HAM bands
-
Stability
-
Tuning steps
-
Filters
-

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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
10.00 kg (22.1 lbs)
Form factor
Base Station
Manufactured
Between 1977 and 1979

Other features

Memories
-
Usage
Amateur / Ham radio operators
Features + options
RIT, NB
Accessories
-

Manuals, diagrams and brochures

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