Yaesu FT-747GX User Manual

(5)
AF
OUT
This
pho.no
jack
provides constant
low-level
receiver
audio,
unaffected
by
the
AF
gain
control,
for
tape
recording,
digital
demodula-
tors
capable
of
high
impedance
input
or
an
external
audio
amplifier.
Output
level
is
approximately
50mV
peak
at
10
kilohms.
@nductor
Shield braid
(6)
EXT
ALC
This
phono
jack
accepts
automatic
level
control
voltage
for
the
transmitter
from
a
linear
amplifier.
The applied
voltage
should
be between
0
and -5V
DC, referenced
to
the
outer contact
(chassis
ground).
(7)
PTT
Jack
This
phono
jack
provides access
to
the
PTT
line,
for
external
receive/transmit
switching.
Connecting
the
inner
contact
to
the outer
contact
(chassis
ground)
activates
the
trans-
mitter.
Open circuit
voltage is
about
5V,
and
closed
circuit
current
is about
I mA.
(8)
BAND
DATA
+t3v
TX GND
NC
A]
el
cf
oJ
LINEAR
DIN
connector
provides
parallel
bandswitching
signals
for the
and
FC- 1000
Antenna
Tuners or
Linear
Amplifier.
(s)
DC l3.sv
This 4-pin
connector
accepts
12
to
15V
DC
at
19
amperes
(transmit),
to
power
the
trans-
ceiver.
CAUTION:
AC voltage
or
DC outside
of
this
range
may
damage
the
transceiver.
(10)
ANT
Coaxial
Jack
This type-M
(SO-239)
jack
is
for the
antenna
system,
antenna
tuner or
linear
amplifier
input.
Impedance
requirement
is
50 ohms,
unb a
I anced.
Use only
a
properly
mating
type-M
(PL-259)
plug
and
50- or
52-ohm
coaxial
cable.
(11)
GND
For best
performance
and safety,
connect
this
terminal
to
a
good
earth
ground
through
the
shortest
path
possible.
(r2l
cAr
O
eNo
O
Serial OUT
@
Serial lN
@
prr
@
AGc
@
t'lc
This 6-pin
DIN
jack
provides
access
to
the
serial
data
lines
from
the microcomputer
and
A/D converter,
for control
of
the
transceiver
from
an
external
computer.
See the
CAT
section of this
manual
for details.
O
@
@
@
@
@
o
@
This 8-pin
TT L- level
FC-757AT
rhe
FL-7000

Yaesu FT-747GX Specifications

General

Brand	Yaesu
Model	FT-747GX
Category	Transceiver
Language	English