![background image](http://html1.mh-extra.com/html/icom/ic-m710rt/ic-m710rt_instruction-manual_2038007013.webp)
4
RECEIVE AND TRANSMIT
9
■
Basic voice receive and transmit
➀
Check the following in advance:
➥
Microphone is connected.
➥
[SPEAKER] switch is turned off.
➥
[SQL] switch is turned off.
➥
[CLARITY] control is set to the center position.
➁
Select the desired channel to be received with the
[GROUP] and [CHANNEL] selectors.
• When receiving a signal, the S-meter shows the signal
strength.
➂
Adjust [VOLUME] to the desired audio level when
receiving a signal.
➃
Push [MODE] to select the desired operating mode,
if the received signal is in a different mode.
➄
Push [TUNE] to tune the antenna tuner, if con-
nected.
• This operation is not necessary when “automatic tuning”
is selected in set mode (p. 13).
➅
To transmit on the channel, push and hold the PTT
switch on the microphone.
• “TUNE” flashes for 1 to 2 sec. for the first transmission
on a channel when an antenna tuner is connected.
➆
After the flashing stops, speak into the microphone
at your normal voice level.
• The RF meter shows the output power according to your
voice level.
➇
Release the PTT switch to return to receive.
microphone
connector
[SQL]
[SPEAKER]
[CLARITY]
■
Functions for transmit
D
Transmit frequency check
When “DUP” appears on the display such as for a
ship-to-shore channel, the transmit frequency differs
from the receive frequency.
In such cases, the transmit frequency should be mon-
itored before transmitting to prevent interference to
other stations.
Push and hold [TX FREQ] to monitor the transmit fre-
quency.
• The display shows the transmit frequency.
TX FREQ
D
Transmit power selection
The transceiver has 3 selectable output powers.*
High power allows longer distance communications
and low power reduces power consumption.
*Only 2 selectable output powers are available with some
versions. In this case, level 1 stands for 60 W (the same as
level 2).
☞
NOTE:
Low power setting affects all channels ex-
cept the 2182 kHz emergency channel.
☞
NOTE:
Although power selection appears possi-
ble with GMDSS versions, only high power is
available.
➀
Push [FUNC] then [TX] to call up the following dis-
play.
➁
Rotate the [CHANNEL] selector to select high or
low output power.
3 : high power (150 W PEP)
2 : middle power (60 W PEP)
1 : low power (20 W PEP)
➂
Push [FUNC] or [CE] to return to the previous dis-
play.
T X
RX
D S C
F
AGC
A L M
IC-M710RT.qxd 02.1.9 9:03 Page 9