Icom IC-M412 [15/68] N receiving and transmitting

Icom IC-M412 [15/68] N receiving and transmitting
7
3
BASIC OPERATION
New2001
3
n Receiving and transmitting
CAUTION: Transmitting without an antenna may dam-
age the transceiver.
q
Rotate [VOL] to turn ON the power.
w
Set the audio and squelch levels.
Rotate [SQL] fully counterclockwise.
Rotate [VOL] to adjust the audio output level.
Rotate [SQL] clockwise until the noise just disappears.
While in the DSC operation, please make sure you cor-
rectly set the squelch.
e Push [U/I/C] (both [Y] and [Z]) to change the channel
group. (p. 6)
r
Push [Y] or [Z] to select a desired channel. (pp. 5, 6)
•Whenreceivingasignal, appears and audio is heard
from the speaker.
•Furtheradjustmentof[VOL] may be necessary.
t Push [HI/LO] on the microphone to select the output
power, if necessary.
•“LOW appears when low power is selected.
•Chooselowpowerforshortrangecommunications,choosehigh
power for longer distance communications.
•Somechannelsareforlowpoweronly.
y Hold down [PTT] to transmit, then speak into the micro-
phone (M).
•“ appears.
•Channel70cannotbeusedfortransmissionotherthanDSC.
u Release [PTT] to receive.
IMPORTANT: To maximize the readability of your trans-
mitted signal, pause a few seconds after holding down
[PTT], hold the microphone 5 to 10 cm from your mouth
and speak into the microphone (M) at a normal voice
level.
u
w
re
M
q
y
r
t
M: Microphone
4 NOTE for the TOT (Time-out Timer) function
The TOT function inhibits continuous transmission over a pre-
programmed time period after the transmission starts.
A beep sounds and “TOT” appears on the channel comment
display at the 10 seconds before the transmission will be shut
down by the TOT function. Transmission is disabled for 10
seconds after this transmission shut down.

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