Radio Shack Dx-390 Owners Manual

If the tuning knob skips or won't tune "up," it is usually due to dirt in the electrical encoder. This can often be fixed by opening the back and flushing the encoder with 91% isopropyl alcohol while rotating it. "Deaf" Radio:

FM (87.5–108 MHz), LW (150–281 kHz), MW (522–1611 kHz), and SW (1.711–29.999 MHz). Tuning Methods: radio shack dx-390 owners manual

The receiver covers a wide range of frequencies across several bands: 1.711 – 29.999 MHz (continuous). Longwave (LW): 150 – 519 kHz. Medium Wave (AM): 520 – 1710 kHz. If the tuning knob skips or won't tune