Yaesu FT-2000D, Operating Manual

Page: 19 / 140

Page 17 FT-2000D O
PERATING
M
ANUAL
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.
N
OTE
:
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.
N
OTE
:
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.
A A
A A A
D D D D DVICE VICE VICE VICE 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.
[
RX
]: Normally, the antenna connected to the ANT 1
or 2 jack is used for receive (and always used for trans-
mit). When the [
RX
] 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.
A
DVICE
:
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.
A
DVICE
:
ˆ 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).
ˆ 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.
A
DVICE
:::::
ˆ The Attenuator affects both the Main (VFO-A) and
Sub (VFO-B) receivers.
ˆ
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.
F
RONT
P
ANEL
C
ONTROLS
& S
WITCHES