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Page 118 FT-991 OperaTing Manual
exAMple oF dAtA coMMunicAtionS device
Use commercial or free computer software for PSK data communications. See the illustration below for connecting the
FT-991
transceiver to a computer.
Be sure to read the instruction manual of the interface device to be connected to the radio and computer.
Data (psk) operation
DATA-AFSK
(PSK, OLIVIA, CONTESTIA, RTTY etc.)
FT-991 Settings
1. Press the
MODE
button, and then touch the corre-
sponding key on the LCD to select the USB operat-
ing mode. The “
USB
” icon appears in the display.
Advice:
USB is the conventional mode for AFSK transmis-
sion on all bands, however some users may be using
LSB.
2. Press the
F(M-LIST)
button to display the function
list.
3. Touch
[
MONI
]
on the LCD. The Monitor function
will be set to “ON”. The
MULTI
knob will function
as the MONITOR adjustment knob.
4. Press the
MENU(SETUP)
button. The Menu list
will appear in the display.
5. Rotate the
MULTI
knob to select Menu item
110
SSB PTT SELECT
”. Touch
[
SELECT
] on the LCD,
then rotate the
MULTI
knob to set this Menu item to
RTS
”. Touch
[
ENTER
]
on the LCD.
6. Rotate the
MULTI
knob to select Menu item
111
SSB PORT SELECT
”. Touch
[
SELECT
]
on the
LCD, then rotate the
MULTI
knob to set this Menu
item to “
USB
”. Touch
[
ENTER
]
on the LCD. Press
the
MENU(SETUP)
button or touch
[
BACK
]
on the
LCD to exit to normal operation.
note:
All other SSB and DATA settings remain at their de-
fault.
Connect a USB Cable from the FT-991 USB port
and your computer
Advice:
Before connecting the USB cable you must down load
the SCU-17 Drivers. The Drivers can be found on the
FT-991
FILES page at the Yaesu Web page, www.
yaesu.com. Once the Drivers have been installed con-
nect the USB cable to the computer and then to the ra-
dio. At your computers Device Manager you will nd
a Standard Driver and Enhanced Driver installed.
Computer Settings
Soundcard
At your Computer Control Panel Sound set your
Speaker Audio default to USB AUDIO CODEC.
COM PORT
Check your Com Port assignments at your Computer’s
Device Manager to be sure you have the Enhanced
and Standard Drivers. Make a note of the Com Port
numbers assigned.
RTTY/DATA JACK
DATA IN (Pin 1)
GND (Pin 2)
DAKY (Pin 3)
SHIFT (Pin 4)
RTYO (Pin 5)
BUSY (Pin 6)
DAKY
RTYO
Interface de-
vice commer-
cially available
To LINE IN/MIC IN,
LINE OUT/MIC OUT,
COM port, etc.
Commercially available
USB cable
To USB port
Advice:
The
FT-991
allows for PSK, Olivia, Contestia, etc. digital mode to be sent by the Data method or SSB. The conven-
tional method is to use USB, except RTTY, however the Data method allows for more accurate carrier frequency con-
trol, which is helpful in a Contest or DX environment.
120


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