Newer Kenwood transceiver (since TS-570) have a 9 pin SUB-D connector and operate with
V24 levels for transceiver control. It´s intended for direct connection to a COM port of a PC.
Also these transceivers can easily be controlled by the PTC-IIIusb. Just solder a 9 pin
connector to the attached cable as shown in the table below.
3.6.2
Connections PTC - ICOM
Many ICOM's use a 3.5 mm jack socket for remote control. Bi-directional communication is
carried out over a single wire. Different transceivers have different addresses, so it is possible
for more than one transceiver to be connected to the remote control cable. Further information
can be found in the appropriate literature from ICOM.
Signal
PTC
ICOM
PIN 6
GND
PIN 13
This cable is available completely assembled.
Refer to chapter
3.6.3
Connections PTC - YAESU
Some YAESU's like the FT-890 or FT-990 use a 6 pin DIN socket for remote control:
Older transceivers (like the FT-757) support serial input only. In this case the PTC-IIIusb
adjusts the frequency but can not read it out.
Signal PTC
TxD
PIN 3
RxD
PIN 8
CTS
PIN 4
RTS
PIN 2
GND
PIN 13 orange
This cable is available completely
assembled. Refer to chapter
Table14: KENWOOD V24
Color
black
inner
orange
outer
5
on page 49.
Table15: ICOM
Signal
PTC
TxD
PIN 9
RxD
PIN 1
GND
PIN 13
Table 16: YAESU FT-890/990
Signal
PTC
TxD
PIN 9 pink
GND
PIN 13 orange
Table 17:
Color
KENWOOD
yellow
PIN 3
red
PIN 2
green
PIN 8
white
PIN 7
PIN 5
5
on page 49.
ICOM
Color
YAESU
pink
PIN 3
violet
PIN 2
orange
PIN 1
Color YAESU
PIN 3
PIN 1
YAESU FT-757
3. Installation
GND
ICOM-Signal
Figure 5: ICOM plug
45