11
4
RECEIVE AND TRANSMIT
■
CW operation
The transceiver has the following CW keying features
selectable in set mode as described on page 15.
➥
Full break-in
(receiving is possible while transmitting)
➥
Delay keying
(automatic transmission with keying)
➥
Off
(manual transmission is necessary before keying)
➀
Connect a CW keyer or an external electronic
keyer to the ACC(1) socket as shown at right.
➁
Select the desired channel to operate CW mode.
➂
When the selected channel is not in A1A mode,
push [MODE] one or more times to select “A1A.”
➃
Operate the CW keyer to transmit a CW signal.
☞
NOTE:
CW mode is not available in some ver-
sions and CW narrow can be selected in set mode
(p. 14) when an optional filter is installed (already
built-in to the GMDSS versions).
CW key connection
2
8
4
5
1
3
6
7
ACC(1) socket
pin 1
pin 2
CW key
■
FSK operation
The transceiver has FSK and J2B modes for FSK op-
eration—use FSK when using the built-in oscillator;
use J2B when using an AFSK terminal unit.
➀
Connect an FSK terminal unit as shown at right.
➁
Select the desired channel.
• FSK ITU channel group, ch 4001 to ch 25040, are avail-
able depending on version.
➂
Push [MODE] one or more times to select the type
of emission, “FSK” or “J2B.”
➃
Operate the FSK terminal unit.
☞
NOTE:
➥
FSK shift frequency and FSK polarity can be
adjusted in set mode (p. 14).
➥
Some transceivers my operate 1.7 kHz higher
than the IC-M710RT’s J2B mode even when
the same displayed frequencies are in use.
FSK terminal unit connection
2
8
4
5
1
3
6
7
ACC(1) socket
FSK terminal unit
FSK keying
AF input
Tx/Rx control
Ground
pin 3
pin 4
pins 2, 5
■
Cross channel operation*
Cross channel operation is available with some ver-
sions to operate different channels for receive and
transmit.
➀
Select the desired channel for receive.
• ITU simplex channels cannot be used.
➁
Push [TX], then select the desired channel for
transmit.
• “
$
” flashes after pushing [TX].
➂
Push [TX] again to stop the blinking.
➃
Operate the transceiver normally.
➄
Change the channel to clear the cross channel set-
ting.
*This function is available for Europe versions only.
Cross channel operation example
D U P
T X
RX
D S C
F
AGC
A
4
3
2
1
0
A L M
D U P
T X
RX
D S C
F
AGC
A
4
3
2
1
0
A L M
While receiving
While transmitting
IC-M710RT.qxd 02.1.9 9:03 Page 11
