18-1
18� ADVANCED 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. See the interface circuit diagram below for details.
Refer to the software application’s instruction manual for setup details.
( Icom does not guarantee the performance of the application software, PC, network device, or network
settings.)
TIP:
• To operate RTTY through your PC’s USB port, set the following item.
»
SET > Connectors > USB SEND/Keying
• Download the USB driver and the installation guide from the Icom website.
https://www�icomjapan�com/support/
To a USB port
To the [microUSB] port
USB cable
PC
When using the microUSB port
When using the [SP] jack, [MIC] jack, and [SEND/ALC] jack
TIP: We recommend using the SEND terminal on the [SEND] jack to change receiving and transmitting.
If you use the PTT terminal on the [MIC] jack, the data may be cut off.
PC
CE B
Connect to
LINE IN or
MIC IN
Connect to
SP OUT
No connection
No connection
Shield cable
Shield cable
Shield cable
2kΩ：2kΩ 10kΩ
2kΩ：2kΩ
10kΩ
4.7kΩ
RTS
GND
10kΩ
(Trimpot)
10kΩ
(Trimpot)
Connect to
COM port
D-Sub25
D-Sub9
Pin 4
Pin 7
Pin 7
Pin 5
Shield cable
Shield cable
★1: NPN transistor
(2SC1815)
★2: Switching diode
(1S1588)
★1
★2
F
D
C
A
B
2.5 mm
Connecting to [MIC]
CD
E
3.5 mm (1/8 inch)
Connecting to
［
SEND/ALC
］
FE
3.5 mm (1/8 inch)
Connecting to [SP]
BA
Interface circuit example for digital modes (User supplied)
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