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Advanced connections
• Front panel
• Rear panel
15
2
INSTALLATION AND CONNECTIONS
2001 NEW
2001 NEW
POWER
TRANSMIT
PHONES
ELEC-KEY
MIC
NR
A
/NOTCH
TUNER
ANT
HF/VHF TRANSCEIVER
NR
NOTCH
AF
MIC GAIN
RF PWR
CW PITCH
F 1
F 2
F 3
F 4
F 5
XFC
MP-W
GENE
50
0
21
7
24
8
28
9
14
5
10
4
18
6
3.5
2
1.8
1
7
3
144
ENT
MP-R
TX
RX
LOCK
TWIN PBT
M-CH
RIT
CLEAR
∂
TX
RIT/
∂
TX
TS
SPLIT
PBTC
F-INP
A /B
V / M
MW
M-CL
KEY SPEED
P.AMP/ATT
NB
VOX/BK-IN
MONITOR
CALL
LOCK/
SPCH
RF/SQL
i7400
MENU
SSB
CW/RTTY
AM/FM
FILTER
HEADPHONES
MIC
The AFSK modulation signal
can be input from [MIC]. (p. 77)
AH-2b
AH-4 (p. 76)
ANTENNA 1, 2
(p. 17)
Connects a linear amplifier,
antenna selector, etc.
[SEND], [ALC]
(p. 17)
Used for connecting a
non-Icom linear ampli-
fier.
When using the AH-4, it must
be connected to the [ANT1]
connector.
[REMOTE]
(p. 94)
Used for computer control and transceive operation.
[DATA]
(p. 77)
EXTERNAL SPEAKER
(p. 100)
SP-21
(optional)
ACC SOCKETS
(pgs. 8, 77)
IC-7400.qxd 02.4.2 11:35 Page 15