Bedienungsanleitung Yaesu FT-DX9000 (Seite 39 von 156) (Englisch)

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Page 37FT DX 9000D OPERATION MANUAL

+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

available at the PACKET and RTTY jacks for TNC

control. 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 gold

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

loudspeaker. 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 k-

Ohms. 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 af-

fect 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).

REAR PANEL

TRV

This gold-plated RCA jack provides a low level RF

output for use with a transverter. Maximum output is

approximately –20 dBm (0.01 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).

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Yaesu FT-DX9000 Seite 39

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