Rtty (Fsk) OperatOn - Icom IC-7600 Instruction Manual

■ RTTY (FSK) operation
A DSP-based hgh-qualty Baudot RTTY encoder/
decoder s bult-n to the IC-7600. When connectng
a PC keyboard (pgs. 18, 19), RTTY operaton can be
performed wthout an external RTTY termnal, TNC or
PC.
If you would rather use your RTTY termnal or TNC,
consult the manual that comes wth the RTTY term-
nal or TNC.
q Push a band key to select the desred band.
w Push [RTTY/PSK] to select RTTY.
• After the RTTY mode s selected, push and hold
[RTTY/PSK] for 1 sec. to toggle between the RTTY
and RTTY-R modes.
• "RTTY" or "RTTY-R" appears.
• The RTTY tunng ndcator appears.
e Push [DECODE] (F-3) to dsplay the decode
screen.
• The IC-7600 has a bult-n Baudot decoder.
r To tune the desred sgnal, am for a symmetrcal
waveform and ensure the peak ponts algn wth
the mark (2125 Hz) and shft (170 Hz) frequency
lnes n the FFT scope.
• The S-meter dsplays the receved sgnal strength,
when a sgnal s receved.
t Press [F12] on the connected PC's keyboard to
transmt.
• [TX] ndcator lghts red.
y Type on the keyboard to enter the contents that
you want to transmt.
• The typewrtten contents are ndcated n the TX buffer
screen and transmtted mmedately.
• The text color wll change when transmtted.
• Press one of [F1]–[F8] on the keyboard to transmt the
TX memory contents.
u Press [F12] on the keyboard to return to receve.
✔ For your convenience
The transmsson contents can be typed before beng
transmtted.
q Perform the steps q to r above.
w Type on the connected keyboard to enter the mes-
sage that you want to transmt.
• The typewrtten contents are dsplayed on the TX buf-
fer screen.
e Press [F12] of the connected keyboard to transmt
the typewrtten contents.
• The color of dsplayed text, n the TX buffer screen, wll
change when transmtted.
• To cancel the transmsson, press [F12] twce.
r Press [F12] of the keyboard to return to receve.
RECEIVE AND TRANSMIT
[TX] [RX]
DECODE
indicator indicator
F-3
RTTY/PSK EXIT/SET
Appears
TX buffer screen
FFT scope
TX/RX contents screen
Water-fall
4
Band keys
Main dial
Appears
2 12 5 / 1 70
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