Fsk And Afsk Connections - Icom ic-7300 Full Manual

2
INSTALLATION AND CONNECTIONS

FSK and AFSK connections

The transceiver has a mode key for RTTY. You can use a PC and an application software to operate RTTY using a
USB cable. However, if you want to operate RTTY or other digital modes, you can use the ACC socket on the rear
panel through an interface unit. Refer to the software application's instruction manual for setup details.
( Icom does not guarantee performance of the application software, PC, network device or network settings.)
(1) When using the USB port
Type B
To the
USB port
A user supplied A/B USB cable
TIP:
• If you set the "USB Serial Function" item to "RTTY Decode," the decoded RTTY signals are output from the USB port.
» SET > Connectors > USB Serial Function
MENU
• You can download the USB driver and the installation guide from the Icom website.
http://www.icom.co.jp/world/index.html
(Support > Firmware Updates/Software Downloads > Transceiver)
(2) When using the ACC socket or the microphone connector
• When connecting to [ACC]
ACC
E
SQL
D
D
!3
E C
o !0 !1 !2
A
t y u i
• ACC: Connect to [C]
q w e r
B
• MIC: Connect to [F]
C
B
(Rear panel view)
A
• When connecting to [MIC]
D
E
1 7 F
2 8 6 C
3 5
B
4
(Front panel view)
NOTE: You can operate ONLY
AFSK RTTY when you connect
the circuit to the microphone
connector.
IC-7300
2 kΩ：2 kΩ
Shield cable
2 kΩ：2 kΩ
*1
E C B
4.7 kΩ
*1
E C B
*1 NPN transistor
(2SC1815)
The sections shown in short dashes are required only when Baudot RTTY is used in the FSK (RTTY) mode.
(Not requeired for other digital modes such as SSTV or PSK)
To a USB port
10 kΩ Shield cable
10 kΩ
(Trimpot)
Shield cable
10 kΩ
10 kΩ
(Trimpot)
Shield cable
D-Sub 25
*2
RTS
Pin 4
GND
Pin 7
*2
4.7 kΩ
TXD
Pin 2
Shield cable
*2 Switching diode
(1S1588)
2-5
Install the RTTY
application software
Type A
Interface circuit
example for digital
modes
(User supplied)
Connect to
LINE IN or
MIC IN
No connection
Connect to
SP OUT
No connection
D-Sub 9
Pin 7
Pin 5
Connect to
COM port
L See pages 18-2 to
Pin 3
PC
PC
18-3 for details on
the ACC socket and
MIC connector.