Features an AM Wide/Narrow switch to help filter out interference on crowded bands.
The DX-390 is recognized for its hefty, professional build, measuring nearly 12 inches long and featuring a prominent 4-inch speaker. Its manual details a suite of advanced features for its era, including: radio shack dx-390 owners manual
: Full coverage of the AM broadcast band, FM stereo (via headphones), Longwave (LW), and continuous Shortwave (SW) from 1.6 to 30 MHz. Dual Power Options Features an AM Wide/Narrow switch to help filter