For shortwave radio enthusiasts, the 1990s represent a golden era of portable receivers. Among the legendary units produced during this time, the Radio Shack DX-390 (also known as the Sangean ATS-818CS) stands out as a fan favorite. With its 100-station memory, dual conversion, and direct keypad entry, this radio was a powerhouse in its day.
Because the front-end FET is sensitive to static zaps from the whip antenna, many owners wire back-to-back diodes from the antenna pad to the negative battery terminal for protection. RadioReference.com Forums Quick Start: Setting the Dual Time Clock
You can find the Radio Shack DX-390 (Cat. No. 20-214) owner’s manual and technical documentation through the following sources: Online Viewing & PDF Downloads radio shack dx-390 owners manual
Press the TIME SET button (hold for ~3 seconds until "SET" flashes).
AC/DC Adapter: Can be powered via a 6V DC (400mA) adapter with a center-pin negative tip. Plugging in an adapter automatically disconnects the internal D batteries. Reference Links & Manuals The Ultimate Guide to the Radio Shack DX-390:
This post provides a quick guide and resource link for the Radio Shack DX-390 (Sangean ATS-806) Owner's Manual. The Collector’s Guide: Radio Shack DX-390 (Realistic)
Sensitivity Boosts: Removing specific resistors (like the 102 surface mount resistor) to enhance LW/MW reception. Because the front-end FET is sensitive to static
control; use this when listening to SSB (Single Sideband) transmissions from ham radio operators to make voices sound natural rather than "robotic." 3. Using the Dual-Time Clock
Below is a draft write-up designed for a product description, archive, or enthusiast site. Radio Shack DX-390 World Band Receiver Introduction