Icom IC-7600 Instruction Manual - Page 89

4 RECEIVE AND TRANSMIT ■ Noise reduction The noise reduction function reduces random noise components and enhances desired signals which are buried in noise. The DSP performs the random noise reduction function. q Push [NR] to turn the noise reduction ON. • The indicator on this switch lights green. w R otate the [NR] control to adjust the noise reduction level. e P ush [NR] to turn the noise reduction OFF. [NR] NR control • The indicator goes off. Noise reduction OFF Noise reduction activated 1 Large rotations of the [NR] control results in audio signal masking or distortion. Set the [NR] control for maximum readability. Noise components Desired signal (CW) 2 3 4 ■ Dial lock function 5 The dial lock function prevents frequency changes by accidental movement of the tuning dial. The lock function electronically locks the dial. ➥ Push and hold [SPEECH/LOCK] for 1 sec. to toggle the dial lock function ON and OFF. • The [LOCK] indicator lights when the dial lock function is in use. • While split frequency operation is ON, the split lock function may be turned ON. (p. 89) NOTE: When "LOCK/SPEECH" is selected in [[SPEECH/LOCK] Switch] item in others set mode, pushing [SPEECH/LOCK] activates the dial lock function. (p. 131) 6 7 [LOCK] indicator 8 9 10 11 SPEECH LOCK 12 13 14 15 16 17 18 19 20 21 82