Icom IC-7700 Instruction Manual page 15

@3 RF GAIN CONTROL [RF] (outer control; p. 3-9)
Adjusts the RF gain level.
While rotating the RF gain control, you may hear
noise. This comes from the DSP unit and does
not indicate a malfunction.
Sensitivity
decreases
@4 NOISE BLANKER SWITCH
➥ Switches the noise blanker ON and OFF when
pushed. The noise blanker reduces pulse-type
noise such as that generated by automobile igni-
tion systems. This function cannot be used in FM
mode, or on non-pulse-type noise.
• The [NB] indicator above this switch lights green
while the function is activated.
➥ Enters blanking-width set mode when pushed
and held for 1 sec.
@5 DRIVE GAIN CONTROL [DRIVE] (p. 3-13)
Adjusts the transmitter level at the driver stage. Ac-
tive in all modes
(other than SSB mode with [COMP]
.
OFF)
Push
Decreases
@6 COMPRESSION LEVEL CONTROL [COMP]
(p. 6-5)
Adjusts the speech compression level in SSB.
Push
Compression
gain decreases
@7 MONITOR GAIN CONTROL [MONI GAIN] (p. 6-4)
Adjusts the transmit IF signal monitor level.
Push
Monitor gain
decreases
Sensitivity
increases
(p. 5-16)
NB
Increases
Compression
gain increases
Monitor gain
increases
@8 VOX GAIN CONTROL [VOX GAIN] (p. 6-2)
Adjusts the transmit/receive switching threshold
level for VOX operation.
Push
@9 ANTI VOX CONTROL [ANTI VOX] (p. 6-2)
Adjusts the VOX sensitivity to speaker audio to pre-
vent unwanted VOX activation.
Push
'More sensitive'
and confirm proper operation
#0 LCD CONTRAST CONTROL [CONTRAST]
Adjusts the LCD contrast.
Push
#1 LCD BRIGHTNESS CONTROL [BRIGHT]
Adjusts the LCD brightness.
Push
#2 AUTOMATIC TUNING SWITCH [AUTOTUNE]
(p. 5-19)
Turns the automatic tuning function ON and OFF in
CW and AM modes.
IMPORTANT!
When receiving a weak signal, or receiving a sig-
nal with interference, the automatic tuning func-
tion may tune the receiver to an undesired signal.
1-5
PANEL DESCRIPTION
High
sensitivity
Low
sensitivity
'Less sensitive'
and confirm
proper operation
High
contrast
Low
contrast
Bright
Dark
1