I Remote jack (CI-V) information
• CI-V connection example
The transceiver can be connected through an optional
CT-17
CI-V LEVEL CONVERTER
equipped with an RS-232C port. The Icom Communi-
cations Interface-V (CI-V) controls the following func-
tions of the transceiver.
Up to 4 Icom CI-V transceivers or transceivers can be
connected to a personal computer equipped with an
RS-232C port. See p. 87 for setting the CI-V condition
using set mode.
• Data format
The CI-V system can be operated using the following
data formats. Data formats differ according to com-
mand numbers. A data area or sub command is added
for some commands.
Controller to IC-7400
q
w
FE FE
66
FE FE
E0
q
w
IC-7400 to controller
• Command table
Command
Sub command
00
—
01
Same as
command 06
02
—
03
—
04
—
05
—
06
00
01
02
03
04
05
07
08
07
—
00
01
A0
to a personal computer
e
r
t
y
E0
Cn
Sc
Data area
66
Cn
Sc
Data area
e
r
t
y
Description
Send frequency data
Send mode data
Read band edge frequencies
Read operating frequency
Read operating mode
Set operating frequency
Select LSB
Select USB
Select AM
Select CW
Select RTTY
Select FM
Select CW-R
Select RTTY-R
Select VFO mode
Select VFO A
Select VFO B
Equalize VFO A and VFO B
CONTROL COMMAND
IC-7400
mini-plug cable
OK message to controller
u
FD
FE FE
FD
FE FE
u
NG message to controller
Command
Sub command
07
B0
08
—
0001–0101*
0102
09
—
0A
—
0B
—
0C
—
0D
—
0E
00
01
02
03
12
13
22
23
14
BC-25
(optional)
9–15 V
DC
personal
computer
ct- 17
E0
66
FB
FD
E0
66
FA
FD
Description
Exchange VFO A and VFO B
Select memory mode
Select memory channel
*P1=0100, P2=0101
Select the call channel
Memory write
Memory to VFO
Memory clear
Read offset frequency
Set offset frequency
Scan stop
Programmed/memory scan start
Programmed scan start
∂F scan start
Fine programmed scan start
Fine ∂F scan start
Memory scan start
Select memory scan start
94
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