Bedienungsanleitung Yaesu FT-2000D (Seite 19 von 140) (Englisch)

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Page 17FT-2000D OPERATING MANUAL

PHONES Jack

A 1/4-inch, 3-contact jack accepts either monaural or

stereo headphones with 2- or 3-contact plugs. When a

plug is inserted, the loudspeaker is disabled. With ste-

reo headphones such as the optional YH-77STA, you

can monitor both Main (VFO-A) and Sub (VFO-B)

receiver channels at the same time during Dual Re-

ceive operation.

NOTE:

When wearing headphones, we recommend that you

turn the AF Gain levels down to their lowest settings

before turning power on, to minimize the impact on

your hearing caused by audio “pops” during switch-

on.

KEY Jack

This 1/4-inch, 3-contact jack accepts a CW key or keyer

paddles (for the built-in electronic keyer), or output

from an external electronic keyer. Pinout is shown on

page 15. Key up voltage is 5 V, and key down current

is 1 mA. This jack may be configured for keyer, “Bug,”

“straight key,” or computer keying interface operation

via Menu item “054 A1A F-TYPE” (see page 121).

There is another jack with the same name on the rear

panel, and it may be configured independently for In-

ternal Keyer or pseudo-straight-key operation.

NOTE:

You cannot use a 2-contact plug in this jack (to do so

produces a constant “key down” condition).

Microphone Connector

This 8-pin jack accepts input from a microphone uti-

lizing a traditional YAESU HF-transceiver pinout.

DIM Switch

Press this button to lower the illumination intensity of

the analog meter and the frequency display. Press it

once more to restore full brightness.

VICEVICE

VICE

Menu Items “008 diSP DIM MTR” and “009 diSP

DIM VFD” allow you to configure the dimming lev-

els for the analog meter and the frequency display in-

dependently, so you can customize the brightness lev-

els.

VOX Switch

This button enables automatic voice-actuated transmit-

ter switching in the SSB, AM, and FM modes. While

activated, the LED inside this button glows red. The

controls affecting VOX operation are the front panel’s

[

VOX

]

and

[

DELAY

]

knobs. By proper adjustment of

these controls, hands-free voice-actuated operation is

possible.

ANTENNA Select Switch

[

1/2

]

: Pressing this selects either the ANT 1 or 2 jack

on the rear panel, and allows convenient antenna

switching at the press of button. The selected antenna

jack is indicated at the upper left corner of the display.

[

]

: Normally, the antenna connected to the ANT 1

or 2 jack is used for receive (and always used for trans-

mit). When the

[

]

switch is pressed, an antenna con-

nected to the RX ANT will be used during receive.

MONI

(

Monitor

)

Switch

This button enables the transmit monitor in all modes.

While activated, the “ ” icon appears in the dis-

play. Adjustment of the Monitor level is accomplished

using the

[

MONI

]

knob.

ADVICE:

When using headphones, the Monitor is highly useful

for making adjustments to the Parametric Equalizer or

other voice quality adjustments, because the voice qual-

ity heard in the headphones is such a “natural” repro-

duction of the transmitted audio quality.

PROC

(

Processor

)

Switch

This button enables the Parametric Microphone Equal-

izer and Speech Processor for SSB/AM transmission.

When the Parametric Microphone Equalizer is acti-

vated, the “ ” icon appears in the display.

When the Speech Processor is activated, the “ ”

and “ ” icons appear in the display. Adjustment

of the Processor level is accomplished using the

[

PROC

]

knob.

ADVICE:

 The Speech Processor is a tool for increasing the

average power output through a compression tech-

nique. However, if the

[

PROC

]

knob is advanced

too far, the increase in compression becomes

counter-productive, as intelligibility will suffer. We

recommend that you monitor the sound of your sig-

nal using the Monitor (with headphones).

 When the optional DMU-2000 Data Management

Unit is connected, you may use the Audio Scope/

Oscilloscope page to help you adjust the setting of

the compression level of the Speech Processor for

optimum performance using your voice and micro-

phone.

KEYER Switch

This button toggles the internal CW keyer on and off.

While activated, the “ ” icon appears in the dis-

play. The Keyer sending speed and the CW Hang Time

are adjusted via the front panel’s

[

SPEED

]

and

[

DE-

LAY

]

knobs.

ATT Switch

This button selects the degree of attenuation, if any, to

be applied to the receiver input.

Available selections are –6 dB, –12 dB, –18 dB, or

OFF, and the selected attenuation level appears in the

ATT column of the Receiver Configuration Indicator

on the display.

ADVICE

 The Attenuator affects both the Main (VFO-A) and

Sub (VFO-B) receivers.

 The Attenuator may be used in conjunction with

the

[

IPO

]

switch to provide two stages of signal

reduction when an extremely strong signal is being

received.

FRONT PANEL CONTROLS & SWITCHES

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