Yaesu Musen 20361X60 Users Manual
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CONTOUR CONTROL OPERATION
(S
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KHZ
)
With reference to Figure “B”, note the initial position
of the contour when the [CONT] button is pushed. You
may observe the “indentation” in the receiver passband
where the contour filter is placing a low-Q “notch” (per
the setting of Menu item “108 RDSP CNTR LV”, ref-
erenced previous page). Counter-clockwise rotation (to
the left) of the [SELECT](contour) knob causes the
indentation to move towered a lower frequency within
the passband, while clockwise rotation (to the right)
causes the indentation to move toward a higher frequency within the passband. By removing interference
or unwanted frequency components on the incoming
signal, it is possible to make the desired signal rise out
of the background noise/interference, enhancing intelligibility.
ABC
IF
BANDWIDTH
IF
BANDWIDTH
IF
BANDW IDTH
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IF SHIFT OPERATION
IF Shift allows you to vary the DSP filter passband higher or lower, without changing the pitch of the incoming signal, so as
to reduce or eliminate interference. Because the carrier tuning frequency is not varied, there is no need to re-tune the
operating frequency when eliminating the interference. The total passband tuning range for the IF Shift system is ±1 kHz.
VFO-A IF SHIFT Operation
Press the (VFO-A)[SHIFT] button. The center posi-
tion of the IF passband will appears in the SUB DIS-
II. The
PLAY-
functions as the IF SHIFT knob.
Rotate the (VFO-A)[SELECT] knob to the left or right
to reduce the interference.
Press the (VFO-A)[CLEAR] button to move the filter
passband to center. When the filter passband is set to
band center, the imbedded LED in the (VFO-
A)[SHIFT] button is glows red.
(
VFO-A)[SELECT] knob will now
(
VFO-A)[SHIFT] Button
[
CLEAR] Button
(
SSB/CW/RTTY/PKT/AM MODES
VFO-B IF SHIFT Operation
Press the (VFO-B)[SHIFT] button. The center posi-
tion of the IF passband will appears in the SUB DIS-
III. The
PLAY-
functions as the IF SHIFT knob.
Rotate the (VFO-B)[SELECT] knob to the left or right
to reduce the interference.
Press the (VFO-B)[CLEAR] button to move the filter
passband to center. When the filter passband is set to
band center, the imbedded LED in the (VFO-
B)[SHIFT] button is glows red.
(
VFO-B)[SELECT] knob will now
)
(
VFO-B)[SHIFT] Button
[
CLEAR] Button
(
VFO-A)[SELECT] Knob
Referring to Figure “A”, note the depiction of the IF
DSP filter as the thick line with the no shift (with the
imbeded LED of the [SHIFT] button is glows red). In
Figure “B”, an interfering signal has appeared inside
the original passband. In Figure “C”, you can see the
effect of rotating the [SELECT](shift) knob so as to
reduce the interference level by moving the filter passband so that the interference is outside of the passband.
(
VFO-B)[SELECT] Knob
ABC
Desired Signal Desired Signal Desired Signal
QRMQRM
IF
BANDWIDTH
IF
BANDWIDTH
IF
BANDW IDTH
Page 60 FTDX5000 OPERATING MANUAL
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WIDTH (IF DSP BANDWIDTH
)
UNING (SSB/CW/RTTY/PKT MODES
T
)
The IF Width tuning system allows you to vary the width of the DSP IF passband, so as to eliminate interference. Moreover,
the bandwidth may actually be expanded from its default setting, should you wish to enhance incoming signal fidelity when
interference on the band is low.
VFO-A WIDTH Operation
Press the (VFO-A)[WIDTH] button. The current band-
width will appears in the SUB DISPLAY-
(
VFO-A)[SELECT] knob will now functions as the
WIDTH knob.
Rotate the (VFO-A)[SELECT] knob to the left or right
to reduce the interference.
Press the (VFO-A)[CLEAR] button to set the band-
width to default. When the bandwidth is set to default,
the imbedded LED in the (VFO-A)[WIDTH] button is
glows red.
(
VFO-A)[WIDTH] Button
II. The
[
CLEAR] Button
VFO-B WIDTH Operation
Press the (VFO-B)[WIDTH] button. The current band-
width will appears in the SUB DISPLAY-
(
VFO-B)[SELECT] knob will now functions as the
WIDTH knob.
Rotate the (VFO-B)[SELECT] knob to the left or right
to reduce the interference.
Press the (VFO-B)[CLEAR] button to set the band-
width to default. When the bandwidth is set to default,
the imbedded LED in the (VFO-B)[WIDTH] button
is glows red.
(
VFO-B)[WIDTH] Button
III. The
[
CLEAR] Button
(
VFO-A)[SELECT] Knob
Referring to Figure “B”, you can see the default bandwidth (with the imbeded LED of the [WIDTH] button
is glows red).
By rotating the [SELECT](width) knob to the left, the
bandwidth will narrow (see Figure “A”), while rotation of the [SELECT](width) knob to the right, as depicted in Figure “C,” will widen the bandwidth.
The default bandwidths, and total bandwidth adjustment range, will vary according to the operating mode
and [NAR] button setting:
MODE
LSB/USB
CW
RTTY(LSB
PKT(LSB/USB
1.8 kHz - 4.0 kHz / 16 steps (2.4 kHz
500 Hz - 2.4 kHz / 7 steps (2.4 kHz
)
500 Hz - 2.4 kHz / 7 steps (500 Hz
)
500 Hz - 2.4 kHz / 7 steps (500 Hz
Ú
OFF
: Default (the imbeded LED of the [WIDTH] button is glows red)
BANDWIDTH
NAR SWITCH
Ú
)
200 Hz - 1.8 kHz / 9 steps (1.8 kHz
Ú
)
50 Hz - 500 Hz / 10 steps (500 Hz
Ú
)
50 Hz - 500 Hz / 10 steps (300 Hz
Ú
)
50 Hz - 500 Hz / 10 steps (300 Hz
(
VFO-B)[SELECT] Knob
ABC
IF
ON
IF
BANDWIDTH
Ú
)
Ú
)
Ú
)
Ú
)
IF
BANDW IDTH
NOTE:
When rotating the [SELECT](WIDTH) knob counterclockwise, the transition between 50 Hz and 25 Hz bandwidth may be accompanied by a “ping” sound, depending
on the amount of noise present. This is a normal condition, and you should turn down the volume, when wearing
headphones, to minimize the amplitude of this momentary
sound.
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USING IF SHIFT AND WIDTH TOGETHER
The IF Shift and Variable IF Width features together form a very effective interference-fighting filtering system.
For example, in Figure “A” you can see how interference
has appeared both on the high and low sides of the desired
signal. By rotating the [SELECT](width) knob after pressing the [WIDTH] button (the imbeded LED of the
[
WIDTH] button is glows red), as shown in Figure “B”,
the interference from one side can be eliminated, then press
the by [SHIFT] button to change the function of the [SE-
LECT] knob as the SHIFT knob (the imbeded LED of the
[
SHIFT] button is glows red. However, the IF Width func-
tion still works). Now, re-positioning the [SELECT](shift
knob (Figure “C”), the interference on the opposite side
can be removed, without re-introducing the interference
previously eliminated in Figure “B”.
ADVICE:
For best interference reduction, the Width and Shift features are the primary tools you should use. After narrowing the bandwidth (width) and/or adjusting the center of
the passband (shift), the Contour control may also yield
additional signal-enhancement benefits on the net residual
bandwidth. What’s more, the IF Notch Filter (see the next
section) may also be utilized, in conjunection with the three
other filter systems, to significant advantage.
)
(
SSB/CW/RTTY/PKT/AM MODES
ABC
Desired Signal Desired Signal Desired Signal
QRM
BANDWID TH
IF
BANDWIDTH
QRMQRM
IF
BANDWIDTH
)
QRMQRMQRM
IF
Page 62 FTDX5000 OPERATING MANUAL
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IF NOTCH FILTER OPERATION
The IF Notch filter is a highly-effective system that allows you to slice out an interfering beat note or other carrier signal
from inside the receiver passband.
VFO-A IF Notch Operation
Press the (VFO-A)[NOTCH] button. The imbedded
LED in the (VFO-A)[NOTCH] button is glows red,
and current “null” (or “Peak”) position of the IF notch
(
filter will appears in the SUB DISPLAY-
A)[SELECT] knob will now functions as the notch
adjustment knob.
Rotate the (VFO-A)[SELECT] knob to adjust the cen-
ter frequency of the IF notch filter.
Press the (VFO-A)[CLEAR] button to move the “null”
position to center.
To switch the IF notch filter off, press the (VFO-
A)[NOTCH] button once more.
II . The
(
VFO-A)[NOTCH] Button
VFO-
[
CLEAR] Button
(
SSB/CW/RTTY/PKT/AM MODES
VFO-B IF Notch Operation
Press the (VFO-B)[NOTCH] button. The imbedded
LED in the (VFO-B)[NOTCH] button is glows red,
and current “null” (or “Peak”) position of the IF notch
filter will appears in the SUB DISPLAY-
(
VFO-B)[SELECT] knob will now functions as the
notch adjustment knob.
Rotate the (VFO-B)[SELECT] knob to adjust the cen-
ter frequency of the IF notch filter.
Press the (VFO-B)[CLEAR] button to move the “null”
position to center.
To switch the IF notch filter off, press the (VFO-
B)[NOTCH] button once more.
)
III. The
(
VFO-B)[NOTCH] Button
[
CLEAR] Button
(
VFO-A)[SELECT] Knob
ADVICE:
The width of the IF notch null may be adjusted using
Menu item “110 RDSP NOTCH WI”. Both “Wide”
and “Narrow” selections are available, with “Narrow”
providing the least disruption of the “desired” signal.
When the optional DMU-2000 Data Management Unit
is connected, the effect of the IF notch filter may be
observed on the Audio Scope (on the “Oscilloscope”
page). The notch will be observed as a “dip” in the
noise platform observed. What’s more, the “Waterfall”
display may be used to observe the effect of the IF
notch filter, which will appear as a white area in the
colored background area. The tuning rate for the IF
notch is somewhat slow while you adjust the
[
SELECT](notch) knob, so the use of the Waterfall
display to confirm proper adjustment is highly recommended.
(
VFO-B)[SELECT] Knob
The performance of the IF notch filter is shown in
Figure “A”, where the effect of rotation of the
[
SELECT](notch) knob is depicted. In Figure “B”,
you can see the notching effect of the IF notch filter as you rotate the [SELECT](notch) knob to
eliminate the incoming interference.
AB
Desired Signal Desired Signal
QRM
(Heterodyne)
IF
BANDWID TH
QRM
(Heterodyne)
IF
BANDWID TH
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DIGITAL NOISE REDUCTION (DNR) OPERATION
The Digital Noise Reduction (DNR) system is designed to reduce the level of random noise found on the HF and 50 MHz
bands, and it is especially effective during SSB operation. By rotating the [DNR] knob, any of 15 different noise-reduction
algorithms can be selected; each of these algorithms was created for dealing with a different noise profile, and you will want
to experiment with the DNR system to find the best setting according to the noise currently being experienced.
)
VFO-A DNR Operation
Press the (VFO-A)[DNR] button. The imbedded LED
in the (VFO-A)[DNR] button is glows red, and current noise-reduction algorithm will appears in the SUB
(
DISPLAY-
functions as the notch adjustment knob.
Rotate the (VFO-A)[SELECT] knob to select the set-
ting that most effectively reduces the noise level.
Press the (VFO-A)[CLEAR] button to set the noise-
reduction algorithm to default.
To switch the DNR system off, press the (VFO-
A)[NOTCH] button once more.
II . The
VFO-A)[SELECT] knob will now
(
VFO-A)[DNR] Button
[
CLEAR] Button
(
VFO-A)[SELECT] Knob
VFO-B DNR Operation
Press the (VFO-B)[DNR] button. The imbedded LED
in the (VFO-B)[DNR] button is glows red, and current noise-reduction algorithm will appears in the SUB
(
DISPLAY-
functions as the notch adjustment knob.
Rotate the (VFO-B)[SELECT] knob to select the set-
ting that most effectively reduces the noise level.
Press the (VFO-B)[CLEAR] button to set the noise-
reduction algorithm to default.
To switch the DNR system off, press the (VFO-
B)[NOTCH] button once more.
II . The
VFO-B)[SELECT] knob will now
(
VFO-B)[DNR] Button
[
CLEAR] Button
(
VFO-B)[SELECT] Knob
DIGITAL NOTCH FILTER (DNF) OPERATION
The Digital Notch Filter (DNF) is an effective beat-cancelling filter that can null out a number of interfering beat notes
inside the receiver passband. Because this is an Auto-Notch feature, there is no adjustment knob associated with this filter.
ADVICE:
If a very strong interfering carrier is encountered, we recommend you first use the IF notch filter, as it is the most effective
notching tool in the receiver section.
VFO-A DNF Operation
Press the (VFO-A)[DNF] button. The imbedded LED
in the (VFO-A)[DNF] button is glows red, confirming
that the DNF system is engaged.
To switch the DNF system off, press the (VFO-
A)[DNF] button once more.
(
VFO-A)[DNF] Button
VFO-A DNF Operation
Press the (VFO-B)[DNF] button. The imbedded LED
in the (VFO-B)[DNF] button is glows red, confirming
that the DNF system is engaged.
To switch the DNF system off, press the (VFO-
B)[DNF] button once more.
(
VFO-B)[DNF] Button
Page 64 FTDX5000 OPERATING MANUAL
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NARROW (NAR) ONE-TOUCH IF FILTER SELECTION
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)
KHZ
VFO-A “One-Touch Narrow” Operation
Press the [A] button (the imbedded LED in the [A
button is glows red), if desired.
Pressing the [NAR] button provides one-touch, mode-
specific selection of a narrow IF DSP filter setting that
does not depend on the setting of the [WIDTH] knob.
Pressing the [NAR] button once more returns the band-
width control to the Width/Shift system. The factory
default of the bandwidth is as shown below.A
ADVICE:
When the narrow bandwidth is selected, the “
will appear in the display, and the bandwidth on the SUB
DISPLAY-
II will be reduced if the SUB DISPLAY-II in-
dicates the bandwidth.
[A]
Button
[
NAR] Button
DVICE:
” icon
VFO-B “One-Touch Narrow” Operation
]
Press the [B] button (the imbedded LED in the [B
button is glows orange).
Pressing the [NAR] button provides one-touch, mode-
specific selection of a narrow IF DSP filter setting that
does not depend on the setting of the [WIDTH] knob.
Pressing the [NAR] button once more returns the band-
width control to the Width/Shift system. The factory
default of the bandwidth is as shown below.
ADVICE:
When the narrow bandwidth is selected, the “
will appear in the display, and the bandwidth on the SUB
DISPLAY-
III will be reduced if the SUB DISPLAY-III
indicates the bandwidth.
[B]
Button
[
NAR] Button
]
” icon
MODE
LSB/USB
CW
RTTY(LSB
PKT(LSB/USB
PKT(FM
AM
FM
)
OFF
2.4 kHz (1.8 kHz - 4.0 kHz / 16 steps
2.4 kHz (500 Hz - 2.4 kHz / 7 steps
)
500 Hz (500 Hz - 2.4 kHz / 7 steps
)
500 Hz (500 Hz - 2.4 kHz / 7 steps
25 kHz (±5.0 kHz Deviation)
25 kHz (±5.0 kHz Deviation)
9 kHz
NAR BUTTON
Ú
)
1.8 kHz (200 Hz - 1.8 kHz / 9 steps
Ú
)
500 Hz (50 Hz - 500 Hz / 10 steps
Ú
)
300 Hz (50 Hz - 500 Hz / 10 steps
Ú
)
300 Hz (50 Hz - 500 Hz / 10 stepsÚ)
ON
12.5 kHz (±2.5 kHz Deviation)
6 kHz
12.5 kHz (±2.5 kHz Deviation)
Ú
)
Ú
)
Ú
)
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IF NOISE BLANKER (NB) OPERATION
The FTDX5000 includes an effective IF Noise Blanker, which can significantly reduce noise caused by automotive ignition
systems.
)
VFO-A NB Operation
Press the [A] button (the imbedded LED in the [A
button is glows red), if desired.
Press the [NB] button briefly to reduce short duration
pulse noise such as from switching transients, auto-
mobile ignitions and power lines. The “
appear in the display to confirm that the Narrow-NB is
operating.
Press and hold in the [NB] button for two seconds to
reduce longer-duration man-made pulse noise. The
“
after will appear continuously, to confirm that the WideNB is operating.
Rotate the (VFO-A
offending noise is best reduced or eliminated.
To end Noise Blanker operation, press the [NB] but-
ton once more. The “
turn off, confirming that the Noise Blanker is no longer
in operation.
” icon will blink for three seconds, and there-
[NB]
)
knob to the point where the
” (or “ ”) icon will
[A]
Button
” icon will
[NB]
Knob
VFO-B NB Operation
]
Press the [B] button (the imbedded LED in the [B
button is glows orange).
Press the [NB] button briefly to reduce short duration
pulse noise such as from switching transients, auto-
mobile ignitions and power lines. The “
appear in the display to confirm that the Narrow-NB is
operating.
Press and hold in the [NB] button for two seconds to
reduce longer-duration man-made pulse noise. The
“
after will appear continuously, to confirm that the WideNB is operating.
Rotate the (VFO-B
offending noise is best reduced or eliminated.
To end Noise Blanker operation, press the [NB] but-
ton once more. The “
off, confirming that the Noise Blanker is no longer in
operation.
” icon will blink for three seconds, and there-
[NB]
)
knob to the point where the
” (or “ ”) icon will turn
[B]
Button
” icon will
[NB]
]
Knob
(
VFO-A)[NB] Knob
(
VFO-B)[NB] Knob
Page 66 FTDX5000 OPERATING MANUAL
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AGC (AUTOMATIC GAIN CONTROL
The AGC system is designed to help compensate for fading and other propagation effects, with characteristics that can be
of particular value on each operating mode. The basic objective of AGC is to maintain a constant audio output level once
a certain minimum threshold of signal strength is achieved.
VFO-A AGC Selection
Press the [A] button (the imbedded LED in the [A
button is glows red), if desired.
Move the [AGC] knob up and down to set the desired
receiver-recovery time constant of the VFO-A receiver.
The selected receiver-recovery time will be indicated
in the AGC column of the Block Diagram Display on
the display.
Hold up or hold down the [AGC] knob for two sec-
onds to disable the AGC (for testing or weak-signal
reception).
For most operation, we recommend the “AUTO” mode
by pressing the [AGC] knob briefly or move the [AGC
knob to select the ATT display to the “AUTO” position.
[
AGC] Knob
[A]
Button
]
]
VFO-B AGC Selection
Press the [B] button (the imbedded LED in the [A
button is glows orange).
Move the [AGC] knob up and down to set the desired
receiver-recovery time constant of the VFO-A receiver.
The selected receiver-recovery time will be indicated
in the AGC column of the Block Diagram Display on
the display.
Hold up or hold down the [AGC] knob for two sec-
onds to disable the AGC (for testing or weak-signal
reception).
For most operation, we recommend the “AUTO” mode
by pressing the [AGC] knob briefly or move the [AGC
knob to select the ATT display to the “AUTO” position.
)
[
AGC] Knob
[B]
Button
]
]
HIJKHIJKHIJKHIJKHIJKHIJKHIJKHIJKHIJKHIJKHIJKHIJKHIJKHIJKHIJKHIJKHIJKHIJKHIJKHIJKHIJKHIJKHIJKHIJKHIJKHIJKHIJKHIJK
NOTE:
When the AGC receiver-recovery time is set to “OFF”,
the S-meter will no longer deflect. Additionally, you
will likely encounter distortion on stronger signals, as
the IF amplifiers and the following stages are probably being overloaded.
Normally, the “AUTO” selection is satisfactory for
most situations, but in the event of operation on a
crowded band where you wish to receive a weak signal, you may wish to change the setting (to “FAST”,
for example). The “AUTO” mode selections are:
OPERATING MODE
LSB
USB
CW
AM
FM
RTTY
PKT (FM
PKT (LSB
)
)
AUTO AGC SELECTION
SLOW
SLOW
FAST
FAST
FAST
SLOW
FAST
SLOW
ADVICE:
When a received signal becomes degraded due to pulse
type noise, you may improve signal readability by setting
the Menu items “002 AGC FST HLD”, “004 AGC MID
HLD”, and “006 AGC SLW HLD” to “0 msec”.
QUICK POINT
Several aspects of AGC performance may be configured
via the Menu. However, because AGC can have such a
profound impact on overall receiver performance, we generally do not recommend any changes to the AGC Menu
selections until you are thoroughly familiar with the performance of the FT
TERMINOLOGY:
Automatic Gain Control, or AGC, is a circuit that senses
the incoming signal strength, and then limits the gains of
the RF and IF stages so as to keep the output audio volume at a more-or-less constant level. AGC also protects
the RF, IF, Audio, and DSP stages from overload, as it
limits the signal strength that is allowed to flow, irrespective of the input signal level.
DX5000.
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AGC (AUTOMATIC GAIN CONTROL
)
SLOPED AGC Operation
In traditional AGC systems, the audio output from the transceiver becomes essentially fixed once the threshold for
AGC action is reached (usually several dozen dB above the no-signal noise
floor). The FT
tem on the VFO-A receiver, that allows the audio volume to rise and fall
slightly according to signal strength. Although the rise/fall slope is not dramatic, it is sufficient to allow you to use your ear to discern and separate
signals according to signal strength, not just audio frequency.
Using Sloped AGC
1. Press the [MENU] button briefly to enter the Menu
mode.
2. Use the (VFO-A)[SELECT] to select Menu item
“103 ROUT AGC SLP”.
3. Rotate the (VFO-B)[SELECT] to change the setting to “SLOPE”.
4. Press and hold in the [MENU] button for two seconds to save the new setting and exit to normal operation. You will now be using the Sloped AGC
system.
DX5000, however, includes an innovative Sloped AGC sys-
t
u
p
t
u
O
o
i
d
u
A
Input Signal
(
[
MENU] Button
(
SLOPED
NORMAL
VFO-A)[SELECT] Knob
VFO-B)[SELECT] Knob
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MUTE FEATURE
There may be occasions, during Dual Receive operation,
when you want to silence the VFO-A receiver temporarily
so as to concentrate on what’s being received on the VFOB receiver. The Mute feature makes this simple to accomplish.
Press the (VFO-A)[RX] button, located to the upper left
of the Main Tuning Dial knob. The VFO-A receiver will
be silenced, and the green LED in the (VFO-A)[RX] button will blink.
To restore reception on the VFO-A receiver, just press the
blinking (VFO-A)[RX] button once more.
ADVICE:
If you press the [POWER] switch momentarily while the
transceiver is turned on, the transceiver’s audio will be
muted for three seconds.
(
MAIN (VFO-A) BAND
[
POWER] Switch
)
[A]
Button
Page 69FTDX5000 OPERATING MANUAL
SSB/AM MODE TRANSMISSION
[
MOX] Button
[
MIC] Knob
[
RF PWR] Knob
[
METER] Switch
[A]
Button
[B]
1. The operating mode is selected using the [MODE
]
buttons, and the VFO (A or
B) to which the selection is
applied is selected by the [A
]
or [B] button, located to the
upper left of the Main Tuning Dial knob. Usually,
the [A] button glows
red, signifying that the
VFO-A is being adjusted. Similarly, pressing the [B] button will
cause its indicator to
glows orange, signifying VFO-B adjustment. Therefore, press the [A] or [B] button to select the desired
VFO, then press the [LSB] or [USB] button to select
one of the SSB modes. For AM operation, press the
[
AM/FM] button repeatedly until the “
” icon ap-
pears in the display.
QUICK POINT:
By convention, LSB is used in the 7 MHz and lower
Amateur bands for SSB communication, and USB is
used on the 14 MHz and higher bands (the 10 MHz
band is used for CW and data modes only).
2. Rotate the Main Tuning Dial knob to adjust the operating frequency. Alternatively, you may use the [UP]/
[
DWN] scanning buttons on the MH-31
B8 Hand Mi-
crophone to sweep up or down the current band.
3. Press the microphone’s PTT (Push To Talk) switch to
begin transmission; speak into the microphone in a
normal voice level.
ADVICE:
The “ ” indicator will light up in the frequency
display area, confirming that transmission is in
progress.
When transmitting in the AM mode, rotate the [RF
PWR] knob so as to set a maximum (carrier) power
output of 25 Watts.
Button
Main Tuning Dial knob
4. In the SSB mode, adjust the micro-
5. Release the PTT switch at the end of your transmis-
[
MODE] Buttons
phone amplifier gain to match the
microphone and your voice level,
set the [METER] switch to the
“ALC” position, close the PTT
switch, speak into the microphone in
a normal voice level, and adjust the
[
MIC] (gain) knob so that the ALC
voltage stays within the blue ALC
zone of the meter (up to 2/3 of full
scale deflection) on voice
peaks.
ADVICE:
The microphone gain of
the AM mode has been programmed, at the factory, to a level that should be satisfactory for most
situations. However, using Menu item “047 A3E
MICGAIN,” you may set a different fixed value,
or choose the “MCVR” option, which then lets you
use the front panel [MIC] knob to set the microphone gain in the AM mode. In this case, the [MIC
knob should not be advanced to the point where
the ALC meter deflects. In many cases, the same
setting as used on SSB will be satisfactory.
The SUB DISPLAYs will show the relative Mi-
crophone Gain level for 3 seconds whenever the
[
MIC] knob is turned.
You may disable this feature (displaying the relative Microphone Gain level) via Menu item “015
DISP LVL IND”. See page
??? for details.
sion. The transceiver will return to the receive mode.
]
Page 70 FTDX5000 OPERATING MANUAL
SSB/AM MODE TRANSMISSION
ADVICE:
ALC meter deflection may be caused by excessive drive
power, but also by reflected power detected in the antenna system. If the impedance presented to the transceiver is different from 50 Ohms, ALC meter action
may be observed that is not related to the proper setting of the [MIC] (gain) knob. Therefore, we recommend that you make [MIC] knob adjustments into a
dummy load or antenna system presenting an impedance very close to 50 Ohms.
Rotate the [RF PWR] knob to set the desired power
output. Clockwise rotation of the [RF PWR] knob will
increase the power. The adjustment
range is between 10 Watts and 200
Watts, and you should always use the
minimum power necessary for maintaining reliable communications.
The SUB DISPLAYs will show the RF Power Output
for 3 seconds whenever the [RF PWR] knob is turned.
You may disable this feature (displaying the RF Power
Output) via Menu item “015 DISP LVL IND”. See
??? for details.
page
The analog PO meter indicates the average power out-
put level. SSB transmit average talk power is normally
10% to 50% of the peak power output. Voice characteristics, microphone qualities, parametric equalizer
and compression settings affect actual talk power output.
When performing tests (such as the setup of the [MIC
or [RF PWR] knobs), be sure to check the frequency
before transmitting, so as to avoid interference to others who may already be using the frequency.
Four techniques for exercising Transmit/Receive con-
trol are provided on the FT
choose the technique(s) that best suit your operating
needs:
Pressing the microphone’s PTT switch will engage
the transmitter.
The rear panel PTT jack may be connected to a
foot switch or other manual switching device in
order to engage the transmitter.
Pressing the front panel [MOX] button will lock
the transmitter on. Press the [MOX] button again
to return to receive.
The VOX (Voice Operated Xmit) circuit will en-
gage the transmitter automatically when you speak
into the microphone. For details of VOX operation, see page 74.
DX5000, and you may
]
Page 71FTDX5000 OPERATING MANUAL
USING THE AUTOMATIC ANTENNA TUNER
The Automatic Antenna Tuner (hereinafter referred to as the “ATU”) built into each FTDX5000 is crafted to ensure a 50Ohm load for the final amplifier stage of the transmitter. We recommend that the ATU be used whenever you operate on the
FT
DX5000.
ADVICE:
The ATU of the FT
the station end of your coaxial cable feedline. It does not “tune” the SWR at the antenna feedpoint itself. When designing and building your antenna system, we recommend that every effort be made to ensure a low SWR at the antenna
feedpoint.
The ATU of the FT
Amateur band, so that each band has at least one setting preset for use on that band. The remaining 89 memories are
reserved for the 89 most-recent tuning points, for quick frequency change without the need to retune the ATU.
The ATU in the FT
ing to an SWR of 3:1 or less on the HF amateur bands (6 m amateur band: 25 Ohms to 100 Ohms, corresponding to an
SWR of 2:1 or less). Accordingly, simple non-resonant whip antennas, along with random-length wires and the “G5RV”
antenna (on most bands) may not be within the impedance matching range of the ATU.
1. Rotate the [RF PWR] knob fully clockwise (to the
right).
2. Use the Main Tuning Dial knob to set the radio to the
desired operating frequency within the Amateur band.
3. Press the [TUNE] button briefly to place the ATU in
the transmit line (no adjustment/tuning will occur yet).
The “
QUICK POINT:
The momentarily press of the [TUNE] button will turn
the tuner on, and the microprocessor will automatically
select the tuning point closest to the current operating
frequency.
4. Press and hold in the [TUNE] button for two seconds
to begin automatic tuning. The transmitter will be engaged, and the “
in progress. When the optimum tuning point has been
reached, the radio will return to receive, and the
“
blinking).
5. While tuning around the band using the Main Tuning
Dial knob, you will observe that the “
blinks momentarily every 10 kHz. This momentary
blinking indicates that a new tuning window has been
entered. If you want to save tuning data associated with
this 10 kHz window, repeat step 4 (above) for each
such window. On bands like 1.8 MHz where the impedance may change rapidly, the storage of a number
of tuning points is recommended.
6. To disconnect the ATU from the transmit line, press
the [TUNE] button briefly. The “
off, confirming that the ATU has been turned off. In
the “Off” mode, the transceiver will be directly connected to the coaxial cable connected to your antenna,
and will operate based on whatever impedance is
present at the station end of the coax.
” icon will again glow steadily (instead of
DX5000, being located inside the station, only adjusts the impedance presented to the transceiver at
DX5000 includes 100 memories for tuning data. Eleven of these memories are allocated, one per
DX5000 is designed to match impedances within the range of 16.5 Ohms to 150 Ohms, correspond-
ATU OPERATION
[
TUNE] Button
” icon will appear in the display.
[
RF PWR] Knob
ADVICE:
The ATU circuit is located between the final amplifier and
the rear-panel antenna jack; reception is not affected by
the ATU.
” icon will blink while tuning is
” icon
” icon will turn
QUICK POINT:
As shipped from the factory, only one ATU alignment
point is saved on each Amateur band. This was memorized during the final alignment and performance verification stages on the production line.
The momentary flickering of the “
whenever you cross over into a new 10 kHz ATU
memory window.
NOTE:
Please check the operating frequency before beginning the
tuning process, to be sure you are not interfering with others who may already be using the frequency.
TERMINOLOGY:
Antenna Tuner Memories: The microprocessor of the ATU
makes a note of the positions of the tuning capacitors and
the selected inductors, and stores the data for each 10 kHz
window in which tuning has occurred. This eliminates the
need to re-tune every time you return to a frequency on
which you already have completed the tuning process.
” icon occurs
Page 72 FTDX5000 OPERATING MANUAL
USING THE AUTOMATIC ANTENNA TUNER
ABOUT ATU OPERATION
Figure 1 depicts a situation where normal tuning via the ATU has been successfully completed, and the tuning data has been
stored in the ATU memory. The antenna system as seen by the transmitter is shown.
In Figure 2, the operator has changed frequency, and the “
” icon has become appeared. The operator presses and
holds in the [TUNE] button for two seconds to begin impedance matching using the ATU.
If a high SWR conditions exists (above 3:1), corrective action must be taken in the antenna system to bring the impedance
closer to 50 Ohms. Besides the fact that the ATU will refuse to memorize settings on frequencies where the SWR exceeds
3:1, the high SWR may indicate a mechanical failure in the feed system, and such failures can lead to the generation of
spurious signals causing TVI, etc.
SWR: 2.0
Feed Point SWR
SWR: 1.5
SWR: 1.0
Frequency
SWR after ATU Tuning
FIGURE 1
Memorized ATU Tuning
SWR: 3.0
SWR: 2.0
SWR: 1.0
Frequency
FIGURE 2
About ATU Memories
SWR (Post-tuning) Less than 1.5:1
The tuning settings are committed to the ATU memory.
The “ ” icon appears on the display
when you t ransmit on this frequency
SWR: 3.0
Retuned Setting
SWR (Post-tuning) Greater than 1.5:1
Tuning data will not be retained in memory. If you return to the same frequency, the tuning process must be repeated.
SWR (Post-tuning) Greater than 3:1
The “
” icon will light up, and tuning settings, if achieved, will not be memorized. Please investigate and
resolve the high SWR condition before attempting further operation using this antenna.
Page 73FTDX5000 OPERATING MANUAL
ENHANCING TRANSMIT SIGNAL QUALITY
PARAMETRIC MICROPHONE EQUALIZER
(
SSB/AM/FM MODES
)
The FTDX5000 includes a unique Three-Band Parametric Microphone Equalizer, that provides precise, independent control over the low-, mid-, and treble-ranges in your voice wave-form. You may utilize one group of settings for when the
speech processor is off, and an independent group of settings for when the speech processor is on.
Setup of the Parametric Microphone Equalizer
1. Connect the microphone to the MIC jack.
2. Set the [RF PWR] knob to its minimum value, so as
not to cause interference to other users during adjustment.
ADVICE:
We recommend you consider connecting a dummy
load to one of the Antenna jacks, and monitor your
signal on a separate receiver, so as to prevent interference to other users.
You will have the best chance of hearing the ef-
fects of adjustments if you wear headphones (connected to the monitor receiver) while monitoring
your transmitted signal.
3. To adjust the Parametric Microphone Equalizer while
the speech processor is disabled, press the [PROC
button until the “
” icon appears (or blinks) in
the display. To adjust the Parametric Microphone
Equalizer with the speech processor engaged, press the
[
PROC] button until the “
” and “ ” icon
appears in the display.
ADVICE:
A blinking “
” icon indicates the Parametric
Microphone Equalizer menu setting have all been set
to “OFF”, described later.
4. Press the [MONI] button, if you want to listen on the
DX5000’s internal monitor. Adjust the monitor level
FT
by the [MONI] knob.
5. Press the [MENU] button briefly. The Menu list will
appear in the display.
6. Rotate the (VFO-A)[SELECT] knob to find the
“TAUD” Menu area, containing Menu items “145”
through “153”; these parameters apply to the adjustment of the Parametric Microphone Equalizer when
the speech processor is disabled. Menu items “154”
through “162” apply to the adjustment of the Parametric Microphone Equalizer when the speech processor
is engaged.
7. Rotate the (VFO-B)[SELECT] knob to perform adjustments to a particular Menu item.
[
MONI] Button
[
[
PROC] Button
MONI] Knob
[
MENU] Button
]
8. Press the PTT switch, and speak into the microphone
while listening to the effects of the changes you are
making (in step 6). Because the overall effect on the
sound will change with each adjustment you make, you
should make several passes through each adjustment
area, to be sure that you are achieving the optimum
setting.
9. When you have completed all adjustments, press and
hold in the [MENU] button for two seconds to save
the new settings and exit to normal operation. If you
only press the [MENU] button momentarily to exit,
any changes you performed will not be stored.
ADVICE:
To roll off excessive bass response in a wide-range studio
microphone, try putting a 10 dB null at 100 Hz with a
bandwidth of “1” or “2,” do about a 3 dB null centered on
800 Hz with a bandwidth of “3,” and then put an 8 dB
peak centered on 2100 Hz with a bandwidth of “1.” These
are starting recommendations; each microphone and user’s
voice will be different, often requiring different settings.
(
VFO-A)[SELECT] Knob
(
VFO-B)[SELECT] Knob
QUICK POINT:
The Parametric Equalizer is a unique technique for adjusting the signal quality. Because the three ranges may be adjusted
so precisely, it is possible to craft a response that provides a more natural and pleasant sound than you have ever experienced before. Effective “talk power” can also be significantly enhanced.
The aspects of configuration that you may adjust on the Parametric Equalizer are:
Center Frequency: The center frequency of each of the three bands may be adjusted.
Gain: The amount of enhancement (or suppression) within each band may be adjusted.
Q: The bandwidth over which the equalization is applied may be adjusted.
Page 74 FTDX5000 OPERATING MANUAL
ENHANCING TRANSMIT SIGNAL QUALITY
PARAMETRIC MICROPHONE EQUALIZER
Activating the Parametric Microphone Equalizer
1. Adjust the [MIC] (gain) knob for SSB use, as described
on page
2. Press the [PROC] button briefly. The “
will appear in the display, confirming that the Parametric Microphone Equalizer is engaged.
ADVICE:
A blinking “
Microphone Equalizer menu setting have all been set
to “OFF” (“145 TAUD EQ1 FRQ”, “148 TAUD EQ2
FRQ”, and “151 TAUD EQ3 FRQ”).
3. Press the PTT switch on the microphone, and speak
into the microphone in a normal voice level.
4. To switch the Parametric Microphone Equalizer off,
press the [PROC] button repeatedly until the “
icon disappears.
??.
20
” icon
” icon indicates the Parametric
”
Center Frequency “145 TAUD EQ1-FREQ”(Low)“100” (Hz) ~ “700” (Hz
Parametric Gain “146 TAUD EQ1-LVL”
Q (Bandwidth
Center Frequency “154 TAUD PE1-FREQ”(Low)“100” (Hz) ~ “700” (Hz
Parametric Gain “155 TAUD PE1-LVL”
Q (Bandwidth
3-STAGE PARAMETRIC EQUALIZER ADJUSTMENTS
“148 TAUD EQ2-FREQ”(Mid)“700” (Hz) ~ “1500” (Hz
“151 TAUD EQ3-FREQ”(High)“1500” (Hz) ~ “3200” (Hz
“149 TAUD EQ2-LVL”
“152 TAUD EQ3-LVL”
)
“147 TAUD EQ1-BW”
“150 TAUD EQ2-BW”
“153 TAUD EQ3-BW”
3-STAGE PARAMETRIC EQUALIZER ADJUSTMENTS
“157 TAUD PE2-FREQ”(Mid)“700” (Hz) ~ “1500” (Hz
“160 TAUD PE3-FREQ”(High)“1500” (Hz) ~ “3200” (Hz
“158 TAUD PE2-LVL”
“161 TAUD PE3-LVL”
)
“156 TAUD PE1-BW”
“159 TAUD PE2-BW”
“162 TAUD PE3-BW”
(
SSB/AM/FM MODES
[
PROC] Button
[
MIC] Knob
(
SPEECH PROCESSOR: “OFF”
(
Low)“–20” (dB) ~ “+10” (dB
(
Mid)“–20” (dB) ~ “+10” (dB
(
High)“–20” (dB) ~ “+10” (dB
(
Low)“1” ~ “10”
(
Mid)“1” ~ “10”
(
High)“1” ~ “10”
(
SPEECH PROCESSOR: “ON”
(
Low)“–20” (dB) ~ “+10” (dB
(
Mid)“–20” (dB) ~ “+10” (dB
(
High)“–20” (dB) ~ “+10” (dB
(
Low)“1” ~ “10”
(
Mid)“1” ~ “10”
(
High)“1” ~ “10”
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
+10dB
Parametric Gain
0 dB
-10dB
-20dB
QQ
Q
QQQ
f3f2f1
100 700Hz㨪700 1500Hz㨪1500 3200Hz
㨪
Page 75FTDX5000 OPERATING MANUAL
ENHANCING TRANSMIT SIGNAL QUALITY
USING THE SPEECH PROCESSOR
(
SSB/AM MODES
)
The Speech Processor is designed to increase “talk power” by increasing the average power output via a sophisticated
compression technique. The result is improved intelligibility when conditions are difficult.
1. Adjust the [MIC] (gain) knob for SSB use, as described
on page
??.
2. Press the [PROC] button repeatedly until the “
and “
” icons appear in the display, confirming
”
[
MONI] Button
[
PROC] Button
that the Speech Processor is engaged.
ADVICE:
A blinking “ ” icon indicates the Parametric
Microphone Equalizer menu setting have all been set
to “OFF” (“154 TAUD PE1 FRQ”, “157 TAUD PE2
FRQ”, and “160 TAUD PE3 FRQ”).
[
METER] Switch
[
MIC] Button
[
MONI] Knob
[
PROC] Knob
3. Adjust the [PROC] knob between 9:00 to 12:00
o’clock position.
ADVICE:
The SUB DISPLAYs will show the relative compres-
sion level of the Speech Processor for 3 seconds whenever the [PROC] knob is turned.
You may disable this feature (displaying the relative
compression level) via Menu item “015 DISP LVL
IND”. See page
??? for details.
4. Rotate the [METER] switch fully to the left, so as to
select “COMP” (Compression).
5. Press the PTT switch on the microphone, and speak
into the microphone in a normal voice level. Confirm
that the compression level is within the 5 dB to 10 dB
range.
ADVICE:
We recommend that adjust the [PROC] knob between
9:00 to 12:00 o’clock position as described previously.
5. To switch the Speech Procesor off, press the [PROC
button repeatedly until the “
” and “ ”
]
icons disappears.
ADVICE:
Excessive advancement of the [PROC] knob will re-
sult in a degradation of the transmitted signal’s signalto-noise ratio, thereby reducing intelligibility at the
other end of the circuit.
The Transmit Monitor is very helpful way of verifying
proper adjustment of the compression level. Pressing
the [MONI] button then adjusting the [MONI] knob
for a comfortable listening level while you are transmitting, you will be able to hear the difference in sound
quality as you make adjustments.
The [RF PWR] knob still controls the RF power out-
put, whether or not the Speech Processor is engaged.
When the optional DMU-2000 Data Management Unit
is connected, you may observe the effect of your compression level adjustments by viewing the wave-form
on the “Oscilloscope” page.
Page 76 FTDX5000 OPERATING MANUAL
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