Icom IC-7600 Instruction Manual - Page 53

■ RTTY (FSK) operation, RTTY/PSK], DECODE]

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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 (pgs. 18, 19), RTTY operation can be performed without an external RTTY terminal, TNC or PC. If you would rather use your RTTY terminal or TNC, consult the manual that comes with the RTTY terminal or TNC. q Push a band key to select the desired band. w Push [RTTY/PSK] to select RTTY. • After RTTY mode is selected, push and hold [RTTY/PSK] for 1 sec. to toggle between RTTY and RTTY-R modes. • "RTTY" or "RTTY-R" appears. • RTTY tuning indicator appears. e P ush [DECODE] (F-3) to display the decode screen. • The IC-7600 has a built-in Baudot decoder. r T o 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 indicates received signal strength when signal is received. t P ress [F12] on the connected PC's keyboard to transmit. • [TX] indicator lights red. y T ype from 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 be changed when transmitted. • Press one of [F1]-[F8] on the keyboard to transmit the TX memory contents. u Press [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 T ype from the connected keyboard to enter the message that you want to transmit. • The typewritten contents are indicated in the TX buffer screen. e P ress [F12] of the connected keyboard to transmit the typewritten contents. • The color of displayed text, in the TX buffer screen, will be changed when transmitted. • To cancel the transmission, press [F12] twice. r Press [F12] of the keyboard to return to receive. 4 RECEIVE AND TRANSMIT [TX] [RX] DECODE indicator indicator F-3 Band keys RTTY/PSK Appears EXIT/SET Main dial Appears TX buffer screen FFT scope TX/RX contents screen Water-fall 2125/170 1905 2515 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 46

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■
RTTY (FSK) operation
A DSP-based h±gh-qual±ty Baudot RTTY encoder/
decoder ±s bu±lt-±n to the IC-7600. When connect±ng
a PC keyboard (pgs. 18, 19), RTTY operat±on can be
performed w±thout an external RTTY term±nal, TNC or
PC.
If you would rather use your RTTY term±nal or TNC,
consult the manual that comes w±th the RTTY term±-
nal or TNC.
q
Push a band key to select the des±red band.
w
Push
[RTTY/PSK]
to select RTTY.
•
After RTTY mode ±s selected, push and hold
[RTTY/PSK]
for 1 sec. to toggle between RTTY and
RTTY-R modes.
• “RTTY” or “RTTY-R” appears.
• RTTY tun±ng ±nd±cator appears.
e
Push
[DECODE]
(F-3)
to d±splay the decode
screen.
• The IC-7600 has a bu±lt-±n Baudot decoder.
r
To tune the des±red s±gnal, a±m for a symmetr±cal
waveform and ensure the peak po±nts al±gn w±th
the mark (2125 Hz) and sh±ft (170 Hz) frequency
l±nes ±n the FFT scope.
•
The S-meter ±nd±cates rece±ved s±gnal strength when
s±gnal ±s rece±ved.
t
Press
[F12]
on the connected PC’s keyboard to
transm±t.
• [TX] ±nd±cator l±ghts red.
y
Type from the keyboard to enter the contents that
you want to transm±t.
•
The typewr±tten contents are ±nd±cated ±n the TX buffer
screen and transm±tted ±mmed±ately.
• The text color w±ll be changed when transm±tted.
•
Press one of
[F1]
–
[F8]
on the keyboard to transm±t the
TX memory contents.
u
Press
[F12]
on the keyboard to return to rece±ve.
✔
For your convenience
The transm±ss±on contents can be typed before be±ng
transm±tted.
q
Perform the steps
q
to
r
above.
w
Type from the connected keyboard to enter the
message that you want to transm±t.
•
The typewr±tten contents are ±nd±cated ±n the TX buffer
screen.
e
Press
[F12]
of the connected keyboard to transm±t
the typewr±tten contents.
•
The color of d±splayed text, ±n the TX buffer screen, w±ll
be changed when transm±tted.
• To cancel the transm±ss±on, press
[F12]
tw±ce.
r
Press
[F12]
of the keyboard to return to rece±ve.
Main dial
EXIT/SET
F-3
[TX]
indicator
[RX]
indicator
Band keys
RTTY/PSK
DECODE
Appears
Appears
2125/170
1905
2515
FFT scope
TX buffer screen
TX/RX contents screen
Water-fall
46
4
RECEIVE AND TRANSMIT
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