Rear Panel - Yaesu FT DX 3000 Operating Manual

ANT 1/2/3 Jacks
Connect your main antenna(s) here, using type-M
(PL-259) connectors and coaxial feed lines. The in-
ternal antenna tuner affects only the antenna(s) con-
nected here, and only during transmission.
Warning!
The 100V RF voltage (@100 W/50 ) is applied to
the TX RF section of the transceiver while trans-
mitting. Do not touch the TX RF section while
transmitting.
DC IN Jack
This is the DC power supply connection for the
transceiver. Use the supplied DC cable to connect di-
rectly to a DC power supply, which must be capable
of supplying at least 23 A @13.8 VDC.
GND
Use this terminal to connect the transceiver to a good
earth ground, for safety and optimum performance.
Use a large diameter, short braided cable for making
ground connections, and please
other notes about proper grounding.
To prevent the damage from lightning, at-
mospheric electricity, electrical shock, etc.,
please provide a good earth ground.
µ-TUNE Jacks
These jacks are used to connect the optional RF
µTuning Kit, signal in and signal out.
+13.8 V Jack
This RCA output jack provides regulated, separately
fused 13.8 VDC at up to 200 mA,
ternal device such as a packet TNC. Make sure your
device does not require more current (if it does, use
a separate power source).
F T 30 00 O
DX peraTing
refer to page 9 for
to power an ex-
M
anual
r
PTT Jack
This RCA input jack may be used to provide manual
transmitter activation using a footswitch or other
switching device. Its function is identical to the
[ MOX ] button on the front panel. The same line is
available at the RTTY/PKT jack for TNC control.
Open-circuit voltage is +5 VDC, and closed-circuit
current is 2 mA.
EXT ALC Jack
This RCA input jack accepts negative-going exter-
nal ALC (Automatic Level Control) voltage from
a linear amplifier to prevent over-excitation by the
transceiver. Acceptable input voltage range is 0 to –4
VDC.
IF OUT Jack
This RCA jack outputs the receiver 9 MHz IF signal.
This signal does not pass through the roofing filter.
TX GND Jack
This RCA jack's center pin is closed to ground while
the transceiver's transmitter is engaged. The transis-
tor open collector circuit used for this jack is capable
of switching a DC voltage of 60 V at 200 mA, or DC
30 V at up to 1Amp.
RX OUT Jack
This RCA jack provides output of the receiver signal
lines from the Antenna jack.
LINEAR Jack
This 15-pin output jack provides band selection data,
which may be used for control of optional accesso-
ries such as the VL-1000 Solid-state Linear Ampli-
fier.
p
ear anel
Page 29