Rear Panel; Tuner/Linear; Ant; Gnd - Yaesu FT-710 Operation Manual

Rear Panel

TUNER/LINEAR

This 8-pin output
jack is used to con-
nect to the FC-40
External Automatic
Antenna Tuner or a
Linear Amplifier.
Refer to the table below for the BAND DATA termi-
nal levels when using a linear amplifier.
BAND DATA
BAND
A B C
400k H L H
1 L H H
1.8 H L L
3.5 L H L
5 / 7 H H L
10 L L H
14 H L H

ANT

Connect the main antenna here, using type-M (PL-
259) connectors and coaxial feed lines. The internal
antenna tuner affects only the antenna connected
here, and only during transmission.

GND

Use this terminal to connect the transceiver to a
good earth ground, for safety and optimal perfor-
mance.

EXT SPKR

This 3.5-mm, 2-contact, jack
provides audio output for a
supplied external loudspeak-
er "SP-40". The impedance
at the jack is 4-8 Ohms.

REM/ALC

By plugging the FH-2 Remote Control Keypad into
this jack, direct access to the FT-710 CPU is pro-
vided for control functions of the contest memory
keying, and also frequency and function control.
When a device such as a linear amplifier is con-
nected, this is an external ALC current input jack.
14
RESET （BAND D）
TX INH BAND C
RX D(BAND B) GND
TX GND +13V OUT
TX D(BAND A)
BAND DATA
BAND
D A B C
H 18 L H H
H 21 H H H
L 24.5 L L L
L 28 H L L
L 50 L H L
H 70 H H H
L
SIGNAL GND

KEY

This 3.5-mm, 3-contact jack accepts a CW key or
keyer paddle. A two-contact plug cannot be used
in this jack. Key-up voltage is +5.0V DC, and key-
down current is 3mA.
When connecting a single straight key
D
L
L
When connecting an electronic keyer paddle
H
H

RTTY/DATA

H
H
This 6-pin input/output jack accepts AFSK input
f r o m a Te r m i n a l N o d e
Controller (TNC); it also
provides fixed level receiv-
er audio output, and FSK
keying line.

USB

Connecting to a computer from this jack with a
commercially available USB cable allows remote
control by CAT commands from a computer. The
jack can also be used for input and output of audio
signals and transmitter control. A USB driver is re-
quired for remote control from a computer. Down-
load the driver from the Yaesu website (http://www.
yaesu.com).

USB Jack

Connect a USB A type keyboard or mouse. They
can be used to select items on the screen or to en-
ter characters.

EXT-DISPLAY

DVI-D connector for connecting an external moni-
tor.
When using an external monitor, set the setting
menu item "EXT DISPLAY" to "ON".
Connect a monitor that supports 800 x 480
resolution or 800 x 600 resolution.

DC IN

This is the DC power supply connection for the
transceiver.
Use the supplied DC cable to
connect directly to a DC power
supply, which must be capable
of supplying at least 25 A @13.8
VDC.
KEY
NC
GND
DOT
DASH
COMMON
DATA IN
PTT
DATA OUT
GND
SHIFT
SQL