Icom IC-7600, Инструкция по эксплуатации, Страница: 59 / 196

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4
RECEIVE AND TRANSMIT
4
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RTTY (FSK) operation
A DSP-based high-quality Baudot RTTY encoder/
decoder is built-in to the IC-7600. When connecting
a PC keyboard (pp. 18, 19), you can operates RTTY
without an external RTTY terminal or PC.
If you would rather use your RTTY terminal, consult
the equipment manual.
Before transmitting, monitor your selected operating
frequency to make sure you don’t cause interference
to other stations on the same frequency.
q
Push a band key to select the desired band.
w
Push
[RTTY/PSK] to select RTTY.
• After the RTTY mode is selected, hold down
[RTTY/PSK] for 1 second to toggle between the RTTY
and RTTY-R modes.
• “RTTY” or “RTTY-R” appears.
• The RTTY tuning indicator appears.
e
Push [DECODE] (F-3) to display the decode
screen.
• The IC-7600 has a built-in Baudot decoder.
r
Rotate the main dial to tune the desired signal.
• Aim for a symmetrical waveform, and ensure the peak
points align with the mark (2125 Hz) and shift (170 Hz)
frequency lines in the FFT scope.
• The S-meter displays the received signal strength,
when a signal is received.
t
Push
[F12] on the connected PC’s keyboard to
transmit.
• [TX] indicator lights red.
y
Type on the keyboard to enter the contents that
you want to transmit.
• The typewritten contents are indicated in the TX buffer
screen and transmitted immediately.
• The text color will change when transmitted.
• Push one of
[F1]–[F8] on the keyboard to transmit the
TX memory contents.
u
Push [F12] on the keyboard to return to receive.
For your convenience
✓
The transmission contents can be typed before being
transmitted.
q
Perform the steps
q
to
r
above.
w
Type on the connected keyboard to enter the
message that you want to transmit.
• The typewritten contents are displayed on the TX buffer
screen.
e
Push
[F12] of the connected keyboard to transmit
the typewritten contents.
• The color of displayed text, in the TX buffer screen, will
change when transmitted.
• To cancel the transmission, push
[F12] twice.
r
Push [F12] of the keyboard to return to receive.
Main dial
EXIT/SET
F-3
[TX]
indicator
[RX]
indicator Band keys
RTTY/PSK
DECODE
Appears Appears
• Waterfall display
TX buffer screen
TX/RX contents screen
FFT scope
Waterfall