Rear Panel Connectors - Yaesu FT-897D Operating Manual

R P
EAR ANEL
INPUT Jack
This is the DC power supply connection for the trans-
ceiver, used when operating the transceiver with an ex-
ternal power supply. Use the supplied DC cable to con-
nect this jack to the car battery or DC power supply,
which must be capable of supplying at least 22A @ 13.8
VDC. For base station operation, the optional FP-30
External AC power supply may be attached to the bot-
tom of the transceiver and connect the output pigtail of
the FP-30 to this jack.
GND Terminal
For best performance and safety, this Ground lug may
be connected to a good earth ground using a short, heavy,
braided cable.
/LINEAR Jack
This 8-pin mini-DIN jack is used for connection to the
FC-30 External Automatic Antenna Tuner or ATAS-100/
-120 Active-Tuning Antenna System. It is also used for
interfacing to a personal computer for control of the trans-
ceiver using the
to the VL-1000 Linear Amplifier.
RESET
TX INH BAND C
RX D GND
TX D
TX GND +13.8V
/TUNER
CAT
DATA Jack
This 6-pin, mini-DIN jack accepts AFSK input from a
Terminal Node Controller (TNC); it also provides fixed-
level Receiver Audio Output, Push-To-Talk (PTT),
Squelch Status, and ground lines.
SQL
DATA OUT
9600bps
GND
Page 18
C
ONNECTORS
system, and for interconnection
BAND D
TX INH BAND C
BAND B GND
BAND A
TX GND +13.8V
LINEAR
DATA OUT
1200bps
PTT
DATA IN
DATA
ACC Jack
This 3.5-mm 3-pin jack accepts external ALC (Automatic
Level Control) voltage from a linear amplifier on the tip
connection, and accepts a "Transmit Request" command
on the ring connection. The main shaft is the ground re-
turn.
The "TX Request" connection, when shorted to ground,
puts the FT-897D into the transmit mode, and sends out
a steady CW carrier, for linear amplifier or manual an-
tenna tuner adjustment.
EXT ALC
TX REQ
KEY Jack
This 3.5-mm, 3-pin jack is used for connection to a CW
keyer paddle or a straight key.
EXT SPKR Jack
This 3.5-mm, 2-pin jack provides variable audio output
for an external speaker. The audio output impedance at
this jack is 4 Ω ~ 16 Ω and the level varies according to
the setting of the front panel's AF control.
SIGNAL
144/430 MHz Antenna Jack
Connect your 144 and/or 430 MHz antenna's 50 Ω co-
axial cable to this M-type ("SO-239") connector.
HF/50 MHz Antenna Jack
Connect your HF and/or 50 MHz antenna's 50 Ω co-
axial cable to this M-type ("SO-239") connector.
FT-897D O
GND
GND
M