Radio Shack Dx-390 Owners Manual -

Radio Shack was notorious for its catalog numbers. The DX-390 carries the catalog number 20-201. The original manual was a small, saddle-stitched booklet of approximately 36 pages.

Physical description of the original:

If you are searching on eBay or Etsy for the physical copy, use the search string: "Radio Shack 20-201 manual" or "Radio Shack DX-390 original instructions." radio shack dx-390 owners manual

  • Press SCAN – radio scans upward, stops at next strong signal.

    • The DX-390 does not have a built-in BFO or SSB detection.
    To receive SSB (ham radio, marine, aviation): Radio Shack was notorious for its catalog numbers

  • Reduce power line noise: Use external antenna away from house. Loop antennas help.
  • Improve AM reception: Rotate radio for null on interference, peak on desired station.
  • Use LOCAL/DX correctly: DX for distant, LOCAL for strong locals (reduces overload).

    • The manual provides a detailed diagram of the 21 buttons. Key revelations include: If you are searching on eBay or Etsy

    Manual solution (Page 12): You are entering a frequency out of range. The DX-390 only covers 100 kHz to 29,999 MHz. If you try to enter 30 MHz, you get "Err." Solution: Clear entry with the "CL" button.