Icom IC-A15S - Side Tone Function; LCD Backlight; Low Battery Indicator; Basic Operation

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BASIC OPERATION
n Side tone function
When using a headset (other manufacture’s products), the
transceiver outputs your transmitted voice to the headset
for monitoring. Connect the optional headset with the trans-
ceiver when using this function (OPC-499 HEADSET ADAPTER
and headset are required). (p. 34)
D Setting the side tone level
q Push [PTT] to turn the transmit mode ON.
w During transmit, push [Y]/[Z] to adjust the level.
• ‘ST--0’ is OFF and ‘ST--10’ is maximum level.
WARNING! NEVER operate the transceiver with a head-
set at high volume/monitor levels for long period. A ring-
ing in your ears may occur. If so, reduce the volume
/monitor level or discontinue use.
n LCD backlight
The IC-A15/S has LCD backlight for convenience during
night time operation.
 Push [LIGHT] to turn the LCD
backlight ON and OFF.
IMPORTANT!
Light OFF the LCD back-
light when no backlight is
necessary.
n Low battery indicator
Low battery indicator appears or blinks when the battery
power has decreased to a specified level. The attached bat-
tery pack requires recharging.
If no battery charging is performed even the low battery in-
dicator blinks, emits a long beep then the transceiver power
will be turned OFF automatically.
[PTT]
[Z]/[Y]
Side tone level is indicated
IMPORTANT!
Select ‘ST--0’ when a speaker
microphone is connected, oth-
erwise your voice will be heard
from the speaker during trans-
mit.
[LIGHT]
Appears when the battery
is nearly exhausted.
Blinks when the battery
recharging is necessary.