ICOM 217800 Manuale Utente

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q Push a band key to select the desired band.
w Push [SSB] to select LSB or USB.

• “LSB” or “USB” appears.
• Below 10 MHz LSB is automatically selected; above

10 MHz USB is automatically selected.

e Rotate the tuning dial to tune a desired signal.

• The S-meter indicates received signal strength when

signal is received.

r Rotate [AF] to set audio to a comfortable listening

level.

t Push [TRANSMIT] or [PTT] (microphone) to trans-

mit.

• The TX indicator lights red.

y Speak into the microphone at your normal voice

level.

• Adjust the microphone gain with [MIC] at this step, if

necessary.

u Push [TRANSMIT] or release [PTT] (microphone) to

return to receive.

[TRANSMIT]

[SSB]

[AF] [MIC GAIN]

Tuning dial

[TX] indicator [RX] indicator Band keys

(p. 57)

➥ Push [P.AMP] several times to set the preamp

OFF, preamp 1 ON or preamp 2 ON.

• “P.AMP1” or “P.AMP2” appears when the preamp 1 or

preamp 2 is set to ON, respectively. (depending on op-
erating frequency band)

(p. 57)

➥ Push [ATT] several times to set the attenuator in

6 dB steps.

• “ATT” and attenuation level appear when the attenua-

tor is set to ON.

(p. 62)

➥ Push [NB] switch to turn the noise blanker ON

and OFF.

• Noise blanker indicator (in [NB] switch) lights when the

noise blanker is set to ON.

➥ Push [NB] for 1 sec. to enter the noise blanker

level set mode, then rotate tuning dial to adjust
the threshold level.

(p. 60)

➥ Rotate [TWIN PBT] controls (inner/outer).

• Push [PBT CLR] to clear the settings.

(p. 64)

➥ Push [NR] switch to turn the noise reduction ON

and OFF.

• Rotate [NR] control to adjust the noise reduction level.
• Noise reduction indicator (in [NR] switch) lights when

the noise reduction is set to ON.

(p. 64)

➥ Push [NOTCH] switch to turn the auto or manual

notch function ON and OFF.

• Rotate [NOTCH] control to set the attenuating fre-

quency for manual notch operation.

• Notch indicator (in [NOTCH] switch) lights when either

the auto or manual notch is set to ON.

(p. 59)

➥ Push [AGC] switch several times to select

AGC FAST, AGC MID or AGC SLOW.

➥ Push [AGC] for 1 sec. to enter the AGC set mode.

• Rotate tuning dial to adjust the time constant.