Receive And Transmit; Operating Ssb; D Convenient Functions For Receive - Icom IC-7700 Instruction Manual

4

RECEIVE AND TRANSMIT

■ Operating SSB

[MIC] [TX] indicator [RX] indicator
[AF]
TRANSMIT SSB
Appears
D D Convenient functions for receive
• Preamp (p. 5-9)
➥ Push [P.AMP]
(MF3)
amp OFF, preamp 1 ON or preamp 2 ON.
• Push and hold [P.AMP] (MF3) for 1 sec. to turn the
preamp function OFF.
• "P.AMP1" or "P.AMP2" appears when the preamp 1 or
preamp 2 is ON, respectively.
• Attenuator (p. 5-9)
➥ Push [ATT]
several times to set the attenu-
(MF4)
ator in 6 dB steps.
• Push and hold [ATT] (MF4) for 1 sec. to turn the
attenuator function OFF.
• "ATT" and attenuation level appear when the attenu-
ator is ON.
• Noise blanker (p. 5-16)
➥ Push
to turn the noise blanker ON and
NB
OFF, and then rotate [NB] control to adjust the
threshold level.
• Noise blanker indicator (above
when the noise blanker is ON.
• Push and hold
NB
set mode.
• Twin PBT (passband tuning) (p. 5-12)
➥ Rotate [TWIN PBT] controls (inner/outer).
• PBT indicator (above
PBT is in use.
• Push and hold
PBT-CLR
Band keys
Main dial
several times to set the pre-
switch) lights
NB
for 1 sec. to enter noise blanker
switch) lights when
PBT-CLR
for 1 sec. to clear the settings.
q Push a band key to select the desired band.
w Push
to select LSB or USB.
SSB
• "USB" or "LSB" appears.
• Below 10 MHz LSB is automatically selected; above
10 MHz USB is automatically selected.
e Rotate the main dial to tune a desired signal.
• The S-meter indicates received signal strength when a
signal is received.
r Rotate [AF] to set audio to a comfortable listening
level.
t Push
TRANSMIT
• [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
return to receive.
• Audio tone control (p. 12-4)
➥ Push [SET]
F-7
set mode. Select an item with [Y]
then rotate the main dial to adjust the audio tone.
• Noise reduction (p. 5-17)
➥ Push
to turn the noise reduction ON and
NR
OFF.
• Rotate [NR] control to adjust the noise reduction
level.
• Noise reduction indicator (above
when the noise reduction is ON.
• Notch filter (p. 5-18)
➥ Push
NOTCH
function ON and OFF.
• Rotate [NOTCH] control to set the "valley" frequency
for manual notch operation.
• Notch indicator (above
either the auto or manual notch is ON.
• AGC (auto gain control) (p. 5-11)
➥ Push [AGC]
(MF5)
AGC FAST, AGC MID or AGC SLOW.
➥ Push
AGC VR
manual setting ON and OFF.
• Rotate [AGC] control to adjust the time constant.
• VSC (voice squelch control) (p. 9-3)
➥ Push [VSC]
(MF7)
and OFF.
• The VSC indicator appears when the voice squelch
function is set to ON.
4-2
or [PTT] (microphone) to transmit.
or release [PTT] (microphone) to
then [LEVEL] to enter level
F-1
F-1
switch) lights
NR
to turn the auto or manual notch
switch) lights when
NOTCH
switch several times to select
to turn the AGC time constant
to turn the VSC function ON
/[Z]
F-2