Icom IC-M88 - Call Channel Programming and Lock Function

■ Receiving and transmitting
CAUTION: Transmitting without an antenna will damage
the transceiver.
q Rotate [VOL] clockwise to turn ON the power.
w Use the squelch function to mute any audio noise if neces-
sary. After holding down [SQL] for 1 second, the squelch
function is cut off until [SQL] is released. (default)
e Hold down [SQL] for 1 second (see “Set mode” on page
19), and rotate volume to set the volume level.
r Push [Y] or [Z] to select a channel.
- While receiving a signal, “ ” appears and audio is heard from
the speaker.
- Further adjustment of [VOL] may be necessary at this point.
t Push [H/L•LOCK] to select the output power if necessary.
- “LOW” is displayed when low power is selected, “MID” is dis-
played when middle power is selected, No indication is dis-
played when high power is selected.
- Choose Low power to conserve the battery power, choose High
power for long range communications.
- Some channels are restricted to Low power only.
y Hold down [PTT] to transmit, then speak into the micro-
phone.
- “TX” appears.
- You cannot transmit on Channel 70.
u Release [PTT] to receive.
IMPORTANT: To maximize the readability of your trans-
mitted signal, pause a few second after holding down
[PTT], hold the microphone 5 to 10 cm (2 to 4 inches) from
your mouth and speak at your normal voice level.
NOTE: The transceiver has a Power Save function to con-
serve the battery power and it cannot be turned OFF. The
Power Save function automatically activates when no sig-
nal is received for 5 seconds.
For USA version: To prevent accidental prolonged trans-
mission, the IC-M88 has a time-out timer function. This
timer cuts the transmission OFF after 5 minutes of contin-
uous transmission.
r Set the
channel
w Open the
squelch
q Power ON
e Set volume
t Set the
output power
y Hold down
to transmit
u Release to
receive
10
4
BASIC OPERATION