Press the [NB] button briefly to reduce short duration pulse noise such as from switching transients, automobile ignitions and power lines. The "NB ON" will appear in the display to confirm that the Narrow-NB is operating. Press the [NB] button again to reduce longer-duration man-made puls noise. The "NBW ON" will appear in the display to confirm that the Wide-NB is operating. If desired you may adjust the Noise Blanker level via Menu item "034 NB LEVEL" to the point where the offending noise is best reduced or eliminated. See box below for details. To end Noise Blanker operation, press the [NB] button once more. The "NB OFF" will appear in the display, confirming that the Nois Blanker is no longer in operation.

Adjusting the Noise Blanker Level Press the [MENU] button to engage the Menu mode. Rotate the [VFO-B/CLAR] knob (or press the ▲ / ▼ button) to select Menu item "034 NB LEVEL". Press the [SELECT] button. Rotate the [VFO-B/CLAR] knob (or press the ▲ / ▼ button) to the point where the offending noise is best reduced or eliminated. Press the [SELECT] button, then press the [MENU] button to lock in the new stting and exit to normail operation. End of "IF Noise Blanker (NB) Operation"