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3
INSTALLATION AND CONNECTIONS
I Advanced connections
• Front panel
HEADPHONES
• Rear panel
RX ANTENNA
TRANSVERTER
(p. 19)
Connects a transverter
for V/UHF band use.
AH-2b
16
TIMER
POWER
S
Po
TRANSMIT
PHONES
TUNER MONITOR
AF
ELEC-KEY
MIC
MIC
The AFSK modulation signal
can be input from [MIC]. (p. 20)
ANTENNA 1, 2 (pgs. 18, 19)
Connects a linear amplifier,
antenna selector, etc.
AH-4/AH-3
(p. 19)
When using the AH-4/AH-3,
it must be connected to the
[ANT1] connector.
HF/50MHz TRANSCEIVER
9
+ 20
5
+ 40
1
+ 60dB
10
25 50
100
0
2
3
1.5
1
10
20
SWR
0
COMP
dB
ALC
i756PRO™
NB
NR
RF/SQL
BAL
NR
F-1
F-2
F-3
SSB
CW/RTTY
AM/FM
MIC GAIN RF POWER
COMP
BK-IN DELAY
KEY SPEED
[REMOTE] (p. 79)
Used for computer control and transceive operation.
ACC SOCKETS (pgs. 13, 20)
EXTERNAL SPEAKER (p. 84)
TWIN PBT
1.8
1
3.5
2
7
3
SPLIT
4
5
6
10
14
18
DUAL
WATCH
8
9
21
7
24
28
MW
CHANGE
PBT CLR
50
0
F-INP
M-CL
GENE
ENT
VFO/
MEMO
NOTCH
MP-W
MP-R
TS
MAIN/
SUB
RX
XFC
TX
LOCK
RIT
RIT/
F-4
F-5
REC/PLAY
LOCK/SPEECH
FILTER
EXIT/SET
[SEND], [ALC]
(p. 18)
Used for connecting a
non-Icom linear ampli-
fier.
SP-21
NOTCH
CW PITCH
TX
CLEAR
TX
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