Packet (Afsk) Operation; D Frequency Display During Afsk Operation; Data Communication - Icom IC-i7410 Instruction Manual

11

DATA COMMUNICATION

■ Packet (AFSK) operation

Before operating packet (AFSK), be sure to consult the
operating manual that came with your TNC.
q Connect the TNC and PC. (p. 92)
w Select the desired band. (p. 25)
e Push [SSB] or [AM/FM] to select the desired oper-
ating mode.
r Hold down the same key you pushed in step e for
1 second to select the Data mode.
t Rotate [DIAL] to select the desired frequency.
y Transmit your AFSK signals using your PC's key-
board.
• Rotate the [RF PWR] control to set the output power.
• While using a TNC, the relative strength of the transmit-
ted signal is indicated on the Po meter.
• When operating in the SSB data mode, adjust the out-
put power so that the ALC meter reading stays in the
ALC zone.
NOTE: When connecting the TNC to the ACC socket
on the rear panel, select the USB, LSB, AM and FM
data mode, or disconnect the microphone and ro-
tate the [MIC] control fully counterclockwise.
When the "DATA MOD" item is set to "ACC" (default)
in the Set mode, and the data mode is selected,
the audio input from the [MIC] connector is auto-
matically cut. In that case, the audio input from the
[ACC] socket is used.
Also, when the data mode is selected, the fixed set-
tings listed below are automatically selected;
• Speech compressor
• Transmit bandwidth
• Tx tone (Bass)
• Tx tone (Treble)
Frequency display during AFSK operation
D
When operating AFSK in the SSB mode, the displayed
frequency is the signal's carrier point.
93
: OFF
(Fixed to the default value;
: MID
300 Hz to 2700 Hz.)
: 0
: 0
[SSB] [AM/FM]
Appears when the data mode is selected.
M1
A G C
• Example— LSB/LSB data mode
Mark freq.: 2125 Hz
Shift freq.: 200 Hz
2325 Hz
200 Hz
[DIAL]
T O N S C P
2125 Hz
Carrier point
(Displayed frequency)