Icom IC-7700 - Manual (Page 15)

1-5
@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.
@4
NOISE BLANKER SWITCH (p. 5-16)
➥
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 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) .
@6 COMPRESSION LEVEL CONTROL [COMP]
(p. 6-5)
Adjusts the speech compression level in SSB.
@7
MONITOR GAIN CONTROL [MONI GAIN] (p. 6-4)
Adjusts the transmit IF signal monitor level.
@8 VOX GAIN CONTROL [VOX GAIN] (p. 6-2)
Adjusts the transmit/receive switching threshold
level for VOX operation.
@9 ANTI VOX CONTROL [ANTI VOX] (p. 6-2)
Adjusts the VOX sensitivity to speaker audio to pre-
vent unwanted VOX activation.
#0
LCD CONTRAST CONTROL [CONTRAST]
Adjusts the LCD contrast.
#1
LCD BRIGHTNESS CONTROL [BRIGHT]
Adjusts the LCD brightness.
#2 AUTOMATIC TUNING SWITCH [AUTOTUNE]
(p. 5-19)
Turns the automatic tuning function ON and OFF in
CW and AM modes.
NB
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.
Dark
Bright
Push
Low
contrast
High
contrast
Push
‘More sensitive’
and confirm proper operation
‘Less sensitive’
and confirm
proper operation
Push
Low
sensitivity
High
sensitivity
Push
Monitor gain
decreases
Monitor gain
increases
Push
Compression
gain decreases
Compression
gain increases
Push
Decreases
Increases
Push
Sensitivity
increases
Sensitivity
decreases
1
PANEL DESCRIPTION