About this manual
This manual covers the NRD-505 all‑wave receiver from JRC, detailing its technical specifications, features, and recommended installation practices. It includes sections on the control panel layout, connection of antenna, speaker, power line, and optional accessories.
Operational guidance explains manual and preset reception, frequency reading, calibration, and combined use with transmitters. Maintenance and checking procedures, as well as optional equipment such as the speaker NVA-50S and frequency memory unit, are also described.
What's inside
- Specifications
- Features
- Preparation for Operation
- Description of Control Panel
- Operation
- Maintenance and Checking
- Optional Equipments
- Drawings
Specifications
| Frequency Range for Reception | 100 kHz to 30 MHz, continuously variable |
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| Modes of Operation | AM, SSB (USB and LSB), CW, RTTY |
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| Second IF Stage | 455 kHz |
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| Antenna Input Impedance | 50 Ω to 75 Ω, unbalanced |
Frequently asked questions
How many frequency memory channels are available?
The optional frequency memory unit can store up to four frequencies.
What is the frequency stability after warm‑up?
Frequency stability is less than 100 Hz change per hour after warm‑up.