Icom CT-23 Instruction Manual - page 2
1-1-32 Kamiminami, Hirano-ku, Osaka 547-0003, Japan.
A-6775D-1EX Printed in Japan
© 2009 Icom Inc.
CONNECTIONS
Connect the components to the CT-23 in the fol-
lowing order:
q
PC connection
Connect the microphone jack of the Remote
Communicator (PC) to the PC connector using
the supplied audio cable.
The sound card of the PC must cover the
frequency response range of up to 20 kHz,
and have a sampling rate of 48 kHz, for
the PTT and monitor functions to operate
correctly.
w
External switch connection
If desired, connect a separately purchased
external switch to the EXT-CTRL connector,
for remote PTT and Monitor switch operation.
e
Microphone connection
Connect the SM-25 or HM-152 to the MIC
connector.
You can use the following functions for your
IDAS system, depending on the microphone.
• PTT function
[SM-25, HM-152]
• Monitor function
[SM-25]
• The microphone ON hook (mute) and OFF
hook (unmute) functions
[HM-152]
Connect the hanger to the CT-23’s
ground, to use the functions.
r
AC adapter connection
Connect one of the AC adapters in the
BC-147S series that matches your AC volt-
age requirements.
• The POWER/TRANSMIT indicator lights green.
Be sure to connect the AC adapter last.
DIMENSIONS AND INSTALLATION
Mount the CT-23 by inserting the 2 supplied
screws through the mounting holes and screw-
ing them into a solid flat surface.
SPECIFICATIONS
• Power Supply voltage : 12 V DC
(supplied from the AC adapter)
• Operating temp. range : 0˚C to +40˚C;
+32˚F to +104˚F
• Relative humidity
: 5% to 95%
• Weight (approx.)
: 93 g; 3.28 oz
• Length of the audio cable (approx.)
: 1 m; 3 ft 3
3
⁄
8
in
Remote
Communicator
(PC)
External switch
(purchase separately)
to the microphone jack
to the EXT-CTRL
connector
to the MIC
connector
to the DC IN jack
Supplied
audio cable
to the PC connector
r
q
e
w
Microphone*
(SM-25 or HM-152)
GND
PTT
MONITOR
POWER/TRANSMIT indicator
• Lights green when the power
is ON.
• Lights red while transmitting.
AC adapter*
(BC-147S series)
SM-25 stand
microphone
HM-152 hand
microphone
HM-152 hand
microphone*
SM-25 stand
microphone*
to the MIC
connector
HM-152*
SM-25*
* Purchase separately from an Icom dealer.
3.2 mm;
1
⁄
8
in (mounting hole diameter)
110.0 mm; 4
11
⁄
32
in
36.1 mm; 1
13
⁄
32
in
71.0 mm;
2
25
⁄
32
in
63.0 mm;
2
15
⁄
32
in
All stated specifications are subject to change without notice or obligation.
GND
(Common)
PTT
MONITOR
EXT-CTRL CONNECTOR
The PTT function is activated when the PTT
switch is closed, and the monitor function is acti-
vated when the MONITOR switch is closed.
To control the monitor function from the
external switch, connect the specified micro-
phone to the CT-23.
Specifications
Use wires with diameter of 0.4 to 1.2 mm;
1⁄32 to 1⁄16 in.
Open terminal voltage
3.3 V DC
Terminal current when ON Max. 1 mA
Connector type
One-touch termi-
nal (3 poles)
• Dimensions (approx.)
☞
Information
When the HM-152 is connected, you can transmit the microphone audio not only with the micro-
phone’s [PTT] switch, but also with the Remote Communicator’s [PTT] button, or the external switch.
INFORMATION
You may experience the following problems with
the CT-23, depending on the sound card of the PC.
• If the [PTT] switch of the microphone or the
external switch doesn’t work.
➥
Disable the filtering system of the sound
card.
• If the CT-23 produces a disturbing noise.
➥
Disable the Mic boost of the sound card.
For setting details, refer to the equipment
manual, or contact the sound card or PC
manufacturer.
Icom, Icom Inc. and the Icom logo are registered trademarks of Icom Incorporated (Japan) in Japan, the United
States, United Kingdom, Germany, France, Spain, Russia and/or other countries.
IDAS is a trademark of Icom Incorporated.