Radio Shack Dx-390 Owners Manual Jun 2026

Requires a 6V DC adapter (400mA) with a center-negative tip.

A: No. The manual is clear: The DX-390 is an AM/FM/LW/SW receiver. It has BFO (Beat Frequency Oscillator) for CW (Morse code) but not true SSB. To listen to ham radio voice on SSB, you need the DX-392 or an external down-converter.

Ensure the whip antenna is fully extended. In high-interference areas, you may need a long-wire antenna connected to the external antenna jack. radio shack dx-390 owners manual

This article serves as a comprehensive guide to the Radio Shack DX-390 owner’s manual. You'll learn about the manual's contents, where to find a copy, how to use it to operate the radio, and why it's a critical tool for restoring and maintaining your DX-390.

Tune to the desired station. Press the MEMORY button, then press one of the preset number buttons while the display flashes. Requires a 6V DC adapter (400mA) with a center-negative tip

One of the standout features of the DX-390 is its ability to copy Single Sideband (SSB) signals, which are used by amateur radio operators, maritime traffic, and aviation. How to Receive SSB Signals

To keep your DX-390 in top shape, always remove the 'D' batteries if you plan to store the unit for more than a few weeks. Battery leakage is the most common cause of death for these vintage units. Additionally, ensure the 'AA' backup batteries are fresh, or you will lose your presets every time you unplug the AC adapter. It has BFO (Beat Frequency Oscillator) for CW

: The radio uses a Phase-Locked Loop (PLL) synthesizer for precise tuning. You can tune stations in three primary ways:

Digital LCD display with frequency, signal strength, and clock/timer.

Over the span of decades, dust and oxidation can settle inside the physical volume, tone, and RF gain sliders. This can be resolved by turning off the radio, removing the batteries, and spraying a small amount of electronic contact cleaner (such as DeoxIT) into the slider tracks, then moving the sliders back and forth rapidly fifty times to clear away the debris.