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Icom IC-746 Instruction Manual

Icom IC-746
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31
4
USING DIFFERENT OPERATING MODES
Band keys
[MIC GAIN]
[RF PWR]
Connect microphone here
[AM/FM]
[TRANSMIT]
ı TRANSMITTING
Before transmitting, monitor your selected operating
frequency to make sure transmitting wont cause inter-
ference to other stations on the same frequency.
Connect a microphone to the [MIC] connector.
Push a band key to select the desired band.
Push [AM/FM] to select AM.
Pushing [AM/FM] toggles between AM and FM.
Rotate [AF] to set audio to a comfortable listening
level.
Push [TRANSMIT] or push and hold [PTT] to trans-
mit, then speak into the microphone to transmit.
The P0 meter indicates transmitted AM signal strength.
Push [TRANSMIT] or release [PTT] to return to re-
ceive.
Convenient functions for transmit
q Speech compressor (p. 46) The speech compressor compresses the transmitter
audio input to increase the average audio output level.
Therefore, talk power is increased. This function is ef-
fective for long distance communication or when prop-
agation conditions are poor.
w VOX (voice activated transmit) (p. 43) The VOX function starts transmission without pushing
the transmit switch or PTT switch when you speak into
the microphone; then, automatically returns to receive
when you stop speaking.
e Transmit quality monitor (p. 45) This function allows you to monitor the quality of your
transmitted signal.

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Icom IC-746 Specifications

General IconGeneral
ModeSSB, CW, RTTY, AM, FM
Receiver TypeDouble conversion superheterodyne
Antenna ConnectorSO-239
Voltage13.8 V DC ±15%
Impedance50 ohms
Output Power100 W (SSB, CW, FM, RTTY), 40 W (AM)
Current DrainTX: 20 A
SensitivityAM: 2 µV
SelectivityCW: 500 Hz (-6 dB)

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