Icom IC-M803

14
5
BASIC OPERATION
■ CW operation
The transceiver has the following CW keying features
selectable in the Set mode, as described on page 67.
z Full: Immediately returns to receive when
you release the key.
z Delay: Returns to receive after 0.5 seconds
has passed after you stop keying.
z OFF: Manual transmission with the
microphone’s [PTT] switch, or
grounding the SEND line of the [ACC]
connector is necessary before keying.
D Connecting a CW key
1. Connect a CW key or an external electric keyer to
the [ACC] socket, as shown to the right.
2. Select the desired channel to operate in the CW
mode.
3. Push [◄] or [►] until is displayed in the
Software Key area.
4. Push several times to select “CW.”
5. Operate the CW key to transmit a CW signal.
CW key connection
1
2
3
4
5
6
7
8
■ FSK operation
The transceiver has FSK and AFSK modes for FSK
operation. Select “FSK” when using the built-in
oscillator, and select “AFSK” when using an AFSK
terminal unit.
D Connecting an FSK terminal unit
1. Connect an FSK terminal unit to the [ACC] socket,
as shown to the right.
2. Select the desired channel to operate in the FSK
mode.
L ITU FSK channel group, Ch 4001 to Ch 22026, are
usable only when the “ITU FSK CH” setting is set to
“ON.” (p. 66)
3. Push [◄] or [►] until is displayed in the
Software Key area.
4. Push several times to select “FSK” or
“AFSK.”
5. Operate using the FSK terminal unit.
FSK terminal unit connection
1
2
3
4
5
6
7
8
PTT
L Manual transmission switch for
when “OFF” is selected in the
“CW break-in” setting. (p. 67)
To pin 1
To pin 2
To pin 1
To pin 3
To pin 2 and 5
Ground
TX/RX control
FSK keying
AF ground
AF input
FSK terminal unit