Icom IC-746PRO User manual

IC-746PRO
• Thank you for checking the interactive view of the
IC-746PRO.
– Use your mouse to navigate through the presentation by
clicking the desired control or function.
– To start this tour click either the Front Panel or Rear Panel
view.
– Use the arrow button at the bottom of each page to return
to the previous slide.

Front Panel
Rear Panel

Rear Panel
Front Panel

POWER Connector
• Accepts 13.8 V DC through the supplied DC
power cable (OPC-025D).

TX Indicator
• Lights red while transmitting.

RX Indicator
• Lights green while receiving a signal and
when the squelch is open.

Lock Indicator
• Lights when the dial lock function is activated.
• The dial lock function prevents accidental changes caused by
the tuning dial.
– Push [LOCK/SPCH] to turn the dial lock function ON and OFF.
– “LOCK” indicator lights while the dial lock function is activated.
– Lights while the dial lock function is activated.

Split Indicator
• Lights during split operation.
• Split frequency operation allows you to transmit and receive in the
same mode on two different frequencies.
• The split frequency operation is basically performed using 2
frequencies in VFO A and VFO B.
• [SPLIT] Lights during split operation

Frequency Input Indicator
• Lights during frequency input from the keypad is enable.
• The transceiver has a keypad for direct frequency.
– Push [F-INP].
• F-INP indicator lights
– Input the desired frequency.
– Input “•” (decimal point) between the MHz units and kHz units.
– Push [144 ENT] to enter the input frequency.
• To cancel the input, push [A/B] instead of [144 ENT].
– Lights when keypad input is activated.

POWER Switch
• Push momentarily to turn power ON.
– Turn the optional DC power supply ON in advance.
• Push for 1 sec. to turn power OFF.

AH-4 Connector
• Connection for the AH-4
Automatic Antenna Tuner.

ACC Connectors
• Connectors used for
Accessories

Ground Connectors
• To prevent electrical shock, television interference (TVI), broadcast
interference (BCI) and other problems, ground the transceiver through
the GROUND terminal on the rear panel.
• For best results, connect a heavy gauge wire or strap to a long earth-
sunk copper rod. Make the distance between the [GND] terminal and
ground as short as possible.
–WARNING: NEVER connect the [GND] terminal to a gas or electric
pipe, since the connection could cause an explosion or electric shock.

Remote Connector
• The transceiver can be connected through an optional CT-17 CI-V
LEVEL CONVERTER to a personal computer equipped with an RS-
232C port. The Icom Communications Interface-V (CI-V) controls the
following functions of the transceiver.
• Up to 4 Icom CI-V transceivers or transceivers can be connected to a
personal computer equipped with an RS-232C port.

External Speaker
• Jack for an External speaker.
– 2-conductor
• 3.5 (d) mm
•8W
• More than 2.0 W at 10% distortion
with an 8Ωload

SEND Connector
• Goes to ground while transmitting to
control external equipment such as a
linear amplifier.
– Max. control level: 16 V DC/0.5 A

ALC Connector
• Connects to the ALC output jack of a non-
Icom linear amplifier.
–WARNING: Set the transceiver output
power and linear amplifier ALC output
level referring to the linear amplifier
instruction manual.
• The ALC input level must be in the range 0
V to –4 V, and the transceiver does not
accept positive voltage.

Key Jack Rear
• Jack to be used for Keying via a Straight Key or Computer.

Data Connector
• Data connection for Packet operation.

TRANSMIT FREQUENCY CHECK
• Monitors the transmit frequency when pushed and held.
– While pushing this switch, the transmit frequency can be changed with the
tuning dial, keypad or memo pad.
– When the split lock function is turned ON, pushing [XFC] cancels the dial
lock function.