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Yaesu FT-991A User Manual

Yaesu FT-991A
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Page 117FT-
991



A YAESU

,

or a commercially available GPS receiver/antenna may be con-
nected to the

jack on the rear panel.
The

jack connector is illustrated below.

TXD (Serial data output) (FT1XD/FT1D FT-991A)
RXD (Serial data input) (FT1XD/FT1D FT-991A)
GND
GPS/CAT Jack
(CT-169 Option)
FT1XD/FT1D

TXD (Serial data output) (FTM-400XD/FTM-400D
FT-991A)
RXD (Serial data input)(FTM-400XD/FTM-400D FT-991A)
GND
GPS/CAT Jack
(CT-165 Option)
FTM-400XD/
FTM-400D
TXD (Serial data output)
(FTM-400XD/FTM-400D FT-991A)
RXD (Serial data input)
(FTM-400XD/FTM-400D FT-991A)
GND
GND (Heavy black line)
TXD (Blue)
RXD (Gray)
GPS/CAT Jack
(CT-167 Option)FTM-400XD/
FTM-400D
1. Press the front panel

switch to turn the
transceiver o.
2. Plug the connector of the external device into the

jack on the rear panel.
3. Press and hold in the front panel

switch to
turn the transceiver on.
4. Press the


button to enter the Menu
mode.
5. Rotate the

knob to select Menu item “
028
GPS/232C SELECT
”.
6. Touch
[

] on the LCD, then rotate the

knob to set this Menu item to “
GPS1
” or
GPS2
(
the default setting is “
GPS1
)
.
GPS1
: Enables connection to an external GPS de-
vice.
GPS2
: Enables connection to an external GPS de-
vice, and displays the location information in
real time.
7. Touch
[

]
on the LCD to save the new setting.
8. Press the


button or touch
[

]
on the LCD to exit to normal operation.
When the external device acquires three or more
satellites, the “ ” icon will be displayed on the top
right of the screen.
GPS/CAT Jack
ON/OFF Switch MENU
(
SETUP
)
Button
MULTI Knob

When connecting to an external GPS device, refer to
the operating manual of the connected device as well.
When using an external GPS device, separate the

transceiver away from the external GPS
device to reduce the possibility of RF interference.


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Yaesu FT-991A Specifications

General IconGeneral
TypeHF/VHF/UHF Transceiver
Receiver TypeTriple Conversion Superheterodyne
Antenna Impedance50 Ohms, Unbalanced
Supply Voltage13.8V DC ±15%
IF DSPYes
Real-Time Spectrum ScopeYes
Automatic Antenna TunerYes
WaterproofNo
Built-in Sound CardYes
USB PortYes
ModesAM, FM, SSB, CW
Weight4.3 kg
Antenna ConnectorSO-239
Current Consumption22A (Transmit)
Output Power100W (HF/50MHz), 50W (VHF/UHF)
Display3.5 inch TFT Full Color LCD

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