Most owners never read the back of the manual. This section reveals:
Because the original manual was written for 1991 technology, veteran users have created unofficial supplements. Search for the DX-390 Mods Manual by User "R5000" on the RadioReference forums. radio shack dx-390 owners manual
This supplement (often bundled with the original manual) includes: Most owners never read the back of the manual
Unlike modern SDRs (Software Defined Radios) with touch screens, the DX-390 is a button-intensive device. Without the manual, the front panel looks like a cryptic cockpit. Here is what you are missing by going "manual-less": In short, the manual transforms the DX-390 from
In short, the manual transforms the DX-390 from a confusing brick of buttons into a world-class receiver.