Nfunction for transmit, Ïmeter function, Ïoutput power and microphone gain – Icom IC-718 User Manual

Page 28

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26

5

RECEIVE AND TRANSMIT

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Meter function

The bar meter in the function display acts as an
S-meter (for relative signal strength) during receive
and can be selected for one of three functions during
transmit.

• Push [SET] one or more times to select the PO,

ALC and SWR meter mode.

DISPLAY

INDICATION

MEASUREMENT

Po

Indicates the relative RF output power.

ALC

Indicates the ALC level. When the
meter movement shows the input signal
level exceeds the allowable level, the
ALC limits the RF power. In such cases,
reduce the microphone gain (see
above).

SWR

Indicates the SWR over the transmis-
sion line.

n

Function for transmit

• Setting output power
q

Push [SET] for 1 sec. to select quick set mode.

w

Push [∫ UP]/[√ DN] one or more times to select

“RF Power”.

e

Rotate the main dial to select the desired output.

• Output power is displayed in 101 steps (L, 1–99 and

H) but is continuously selectable.

• Available power
SSB/CW/RTTY:

2 (or less) –100 W

AM :

2 (or less) –40 W*

*Carrier power

• Setting microphone gain
Microphone gain must be adjusted properly so that
your signal does not distort when transmitted.
q

Select SSB or another phone mode.

w

Push [SET] for 1 sec. to enter the quick set mode.

e

Push [∫ UP]/[√ DN] one or more times to select

“MIC GAIN”.

r

When speaking into the microphone adjust the

mic gain so that the ALC meter does not peak
past the ALC zone.

t

Push [SET] to exit quick set mode.

Maximum output
power is selected.

Microphone gain is
set to 50.

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Output power and microphone gain

ALC zone

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