2-9
2
INSTALLATION AND CONNECTIONS
■
Transverter jack information
When 2 to 13.8 V is applied to pin 6 of [ACC 2], the
[X-VERTER] connector is activated for transverter op
-
eration and the antenna connectors do not receive or
transmit any signals.
While receiving, [X-VERTER] connector can be acti
-
vated as an input terminal from an external transverter.
While transmitting, the [X-VERTER] connector out
-
puts signals of the displayed frequency at –20 dBm
(22 mV) as signals for the external transverter.
■
FSK and AFSK connections
The transceiver has a Modem function for RTTY and
PSK. However, if you want to use a PC to operate these
digital modes, it is necessary to prepare the following
interface circuit, or use a similar 3rd party device.
Refer to the instruction manual for the device prior to
connecting it.
D
When using the ACC socket or the microphone connector
Transverter connector
PC
８
２
７
６
１
３
５
４
C
E
B
No connection
No connection
Shield cable
2 k
˘
：
2 k
˘
10 k
˘
2 k
˘
：
2 k
˘
ACC1
10 k
˘
4.7 k
˘
4.7 k
˘
RTS
GND
10 k
˘
(Trimpot)
10 k
˘
(Trimpot)
Connection to
COM port of PC
D-Sub25
D-Sub9
Pin 4
Pin 7
Pin 7
Pin 5
Pin 2
Pin 3
Shield cable
Shield cable
Shield cable
Shield cable
C
E
B
TXD
The sections shown in squares are required
only when Baudot RTTY is used in FSK (RTTY) mode.
(Other digital mode operations such as SSTV or PSK are not required.)
*1 NPN transistor
(2SC1815)
(Rear panel view)
(Front panel view)
¡
When connecting to [ACC1]
¡
When connecting to [MIC]
*2 switching diode
(1S1588)
*1
*1
*2
*2
A
A
B
B
C
C
D
D
E
E
1
2
3
4
5
6
7
8
B
F
E
D
C
*3 Connect to [C] when using ACC1.
Connect to [F] when using the microphone connector.
Example interface circuit for digital modes
(Not provided by Icom)
*3
Connection to
LINE IN or MIC
IN of PC
Connection to
SP OUT of PC
NOTE:
You cannot operate RTTY
(FSK) operation when you
connect the circuit to the
microphone connector.
