Справочник Пользователя для ICOM 318200

61

5

FUNCTIONS FOR RECEIVE

N

The Noise Reduction function reduces random noise 
components and enhances audio signals which are 
buried in noise. The received signals are converted 
to digital signals and then the audio signals are sepa-
rated from the noise.

q Push [NR] to turn ON the Noise Reduction function.

s

w  Rotate the [NR] control to adjust the noise reduc-

tion level.

e  Push [NR] again to turn OFF the function.

s

A large rotation of the [NR] control results in audio 
signal masking or distortion. Set the [NR] control for 
maximum readability.

N

This transceiver has Auto and Manual Notch functions. 
The Auto Notch function uses DSP to automatically at-
tenuate beat tones, tuning signals, etc., even if their 
frequencies are changing. The Manual Notch function 
allows you to manually attenuate a frequency via the 
[NOTCH] control.

±  In the SSB or AM mode, push [NOTCH] to toggle 

the Notch function between auto, manual and 
OFF.

s

abled in the Set mode. (p. 88)

±  In the CW or RTTY mode, push [NOTCH] to turn 

the Manual Notch function ON or OFF.

±  In the FM mode, push [NOTCH] to turn the Auto 

Notch function ON or OFF.

s

s

s

s

[NOTCH] for 1 second to select the wide, mid, or nar-
row manual notch filter width.

N

 The Dial Lock function prevents frequency changes by 
accidental movement of [DIAL] by electronically lock-
ing it.

±  Push [LOCK] to turn the Dial Lock function ON or 

OFF.

s

” appears when the Dial Lock function is ON.

[NR] control

[NR]

[LOCK]

While tuning the manual notch filter, noise may 

be heard. This comes from the DSP unit and 
does not indicate an equipment malfunction.

Desired
signal (CW)

Noise components

[NOTCH] control [NOTCH]