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!7 NOISE REDUCTION LEVEL CONTROL [NR]
(inner control; p. 5-17)
Adjusts the DSP noise reduction level when the
noise reduction function is in use. Set for maximum
readability.
•To use this control, push .
!8 NOISE BLANKER CONTROL [NB]
(outer control; p. 5-16)
Adjust the noise blanker threshold level.
•To use this control, push .
!9 AGC VOLUME SWITCH (p. 5-11)
➥ Push to toggle [AGC] control usage ON and OFF.
• Use [AGC] control to set the AGC time constant when
switched ON.
• The [AGC VR] indicator above this switch lights
green when the control is ON.
➥ Turns the AGC function OFF when pushed and
held for 1 sec.
@0 USB (Universal Serial Bus) CONNECTOR [USB]
(p. 2-4)
➥ Insert USB-Memory* for both reading/storing a
wide variety of the transceiver’s information and
data.
• The indicator above the connectors lights or blinks
when the transceiver reads or writes to the memory
data.
• Unmount operation is necessary before removing the
USB-Memory* (p.12-25).
➥ Connects a PC keyboard for RTTY and PSK31
operations.
•USB keyboard* is supported.
*: USB-Memory or USB keyboard is not supplied by
Icom.
@1 NOISE REDUCTION SWITCH (p. 5-17)
Push to switch DSP noise reduction ON and OFF.
• The [NR] indicator above this switch lights green when
the function is activated.
@2 AF CONTROL [AF] (inner control; p. 3-9)
Varies the audio output level of the speaker or
headphones.
NR
AGC VR
NB
NR
Audio output
increases
Audio output
decreases
Deep
Shallow
Increases
Decreases
1
PANEL DESCRIPTION
POWER
TUNER
TIMER
VOX
SSB CW
RTTY/PSK
AM/FM DATA
AUTO
TUNE
XFC
M.SCOPE
EXIT/SET
REC
PLAY
VOICE MEMORYBRIGHTCONTRASTVOX GAINMONI GAINCOMPDRIVE ANTI VOX
BK-IN MONITOR
TRANSMIT
MIC
ELEC-KEY
PHONES
AF RF
MIC RF
PWR
KEY
SPEED
DELAY
F-1 F-2 F-3 F-4 F-5 F-6 F-7
LOCKTX RX SPLIT
AGC VR
NR
1
1.8 3.5
4
10 14
7
21 24
MP
M
A
GENE
50
NB
i7700
HF/50MHz TRANSCEIVER
AGC SQL NR NB
!7
!8
!9 @2 @3 @5 #2@6 @7 @8 @9 #0 #1@4@0 @1
■ Front panel (continued)