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14
INSTALLATION AND CONNECTIONS
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Required connections
• Front panel
• Rear panel
i7400
POWER
F 1
MENU
SSB
F 2
CW/RTTY
F 3
AM/FM
F 4
FILTER
F 5
XFC
MP-W
GENE
50
MP-R
0
21
7
24
8
28
9
10
4
14 5
18
6
1.8
1
3.5
2
7
3
144 ENT
TS
A/B
SPLIT
F-INP
V/M
M-CL
PBTC
MW
TWIN PBT
M-CH
LOCK/
SPCH
∂
TX
RIT
CLEAR
RIT/
∂
TX
CALL
MONITOR
VOX/BK-IN
NB
P.AMP/ATT
KEY SPEED
CW PITCH
RF PWR
MIC GAIN
HF/VHF TRANSCEIVER
TRANSMIT
PHONES
ELEC-KEY
MIC
TUNER
ANT
NR
NOTCH
AF
RF/SQL
NR
A
/NOTCH
CW KEY
MICROPHONES
(p. 100)
A straight key can be used
when the internal electronic
keyer is turned OFF in keyer
set mode. (p. 34)
HM-36
SM-20
(optional)
(dot)
(com)
(dash)
GROUND
(p. 13)
Use the heaviest gauge wire or
strap available and make the
connection as short as possible.
Grounding prevents electrical
shocks, TVI and other problems.
ANTENNA 1, 2
(pgs. 13, 74)
[Example]: ANT1 for 1.8–18 MHz bands
ANT2 for 21–50 MHz bands
DC POWER SUPPLY
STRAIGHT KEY
PS-125
(Optional)
144 MHz ANTENNA
(pgs. 13, 74)
Connect a VHF
(60–144 MHz)
antenna;
impedance: 50
Ω
.
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IC-7400.qxd 02.4.2 11:35 Page 14