Yaesu FTDX9000D Operation Manual page 39

+13.8V
This gold-plated output jack provides regulated, sepa-
rately fused 13.8 VDC at up to 200 mA, to power an
external device such as a packet TNC. Make sure your
device does not require more current (if it does, use a
separate power source).
PTT
This gold-plated 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 avail-
able at the PACKET and RTTY jacks for TNC con-
trol. Open-circuit voltage is +13.5 VDC, and closed-
circuit current is 5 mA.
PATCH
This gold-plated RCA input jack accepts transmitter
audio - either AFSK or voice - for transmission. This
line is mixed with the microphone audio input line, so
the microphone should be disconnected if using this
jack and mixing is not desired. The optimum imped-
ance is 500 ~ 600 Ohms, and the nominal input level
should be 1 mV.
EXT SPKR
The EXT SPKR two-contact output jacks are goldd
plated, providing audio from the Main (VFO-A) and
Sub(VFO-B) receivers for an external loudspeaker or
speakers, such as the SP-8. Inserting a plug into one
of these jacks disables the corresponding internal loud-
speaker. Impedance is 4 ~ 8 Ohms.
AF OUT
This gold-plated 3-contact jack provides dual-chan-
nel low-level receiver output, for recording or exter-
nal amplification. Peak signal level is 3 Vrms at 10
kOhms. Main band (VFO-A) receiver audio is on the
left channel (tip), and sub band (VFO-B) receiver au-
dio is on the right channel (ring). A stereo amplifier or
recorder is recommended, to record each receiver's
audio separately when dual reception is enabled (au-
dio from either receiver, or both, may be used via this
jack). The front panel AF GAIN knobs do not affect
the signals at this jack.
RTTY
This 4-pin input/output jack provides connections for
an RTTY terminal unit. Pinout is shown on page 123.
The receiver audio level at this jack is at a constant
100-mV (@600 Ohms) level. FSK keying at this jack
is accomplished by a closure of the SHIFT line to
ground by the terminal unit.
PACKET
This 5-pin input/output jack provides receiver audio
and squelch signals, and accepts transmit (AFSK) au-
dio and PTT control, from an external Packet TNC.
Pinout is shown on page 122. The receiver audio level
at this jack is approximately 100 mV (@600 Ohms).
FT 9000D O
DX PERATION
M
ANUAL
R
EAR
TRV
This gold-plated RCA jack provides a low level RF
output for use with a transverter. Maximum output is
approximately 0 dBm (1 mW) at 50 Ohms.
ACC
This is an accessory jack which is used at the factory
for adjustment of the radio. Please do not connect any
cable or accessory to this terminal.
TXGND
This jack's center pin is closed to ground while the
transceiver's transmitter is engaged. It may be used
for control of a peripheral device, most typically a
linear amplifier. To enable this jack, please set Menu
item "TX GNRL 157 EXT AMP TX-GND" to the
"ENABLE" selection. This RCA connector is gold-
plated, and the specifications are shown below.
BAND DATA
BAND DATA1
This 7-pin output jack used for control of the VL-1000
Solid-state Linear Amplifier.
BAND DATA2
This 8-pin output jack provides band selection data
which may be used for control of optional accessories
such as the VL-1000 Solid-state Linear Amplifier.
EXT ALC
This gold-plated RCA input jack accepts negative-go-
ing external 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.
ROTATOR
This 5-pin MINI-DIN Jack accepts a cable connected
to a YAESU G-800DXA/-1000DXA/-2800DXA An-
tenna Rotator. You may control the antenna azimuth
rotation (and rotation speed) using the Function but-
tons on the front panel. (Listed models are current as
of early 2005).
P
ANEL
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