: When the radio is set to "Alert," the audio remains muted until a 1050 Hz emergency tone is broadcast by the National Weather Service, at which point the audio will automatically activate.
For , the telescoping antenna does not affect the signal. Instead, rotate the entire body of the radio horizontally. The internal ferrite rod antenna is directional and relies on the physical orientation of the device. 🛠️ Performance Optimization and Maintenance Radio Shack 12 150 Manual