Receive And Transmit; Operating Ssb; D Convenient Functions For Receive - Icom IC-756PROIII Instruction Manual

4

RECEIVE AND TRANSMIT

■ Operating SSB

[TRANSMIT] [TX] indicator [RX] indicator Band keys
[AF] [MIC GAIN] [SSB]

D Convenient functions for receive

• Preamp (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
operating frequency band)
• Attenuator (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.
• Noise blanker (p. 64)
➥ 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 the tuning dial to ad-
just the threshold level.
• Twin PBT (passband tuning) (p. 60)
➥ Rotate [TWIN PBT] controls (inner/outer).
• Push [PBT CLR] to clear the settings.
33
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.
Tuning dial
• The TX indicator lights red.
y Speak into the microphone at your normal voice
level.
• Adjust the microphone gain with [MIC GAIN] at this step,
if necessary.
u Push [TRANSMIT] or release [PTT] (microphone)
to return to receive.
• Noise reduction (p. 65)
➥ 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.
• Notch filter (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.
• AGC (auto gain control) (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 the tuning dial to adjust the time constant.