-3-
A
BOUT
THE
S
PECTRUM
S
COPE
The
SM-5000
Spectrum Scope provides a visual display of an amateur band segment tuned by the VFO-A receiver. The default
bandwidth allows you to see both strong and weak signals clearly depicted on the monitor screen. During transmission, the
transmitter’s waveform will be displayed,
except when the frequency span is set to 2500 kHz in the CTR (Center) display
mode or set to 1000/2500 kHz in the FIX (Fixed) display mode
.
The LBWS (Limited Band Width Sweep) function provides very high-speed signal detection over a limited segment of the
currently displayed spectrum. The CTR (Center) display mode will let you monitor signals close to your current frequency (your
frequency is located at the center of the screen). When the FIX (fixed) mode is engaged, the left band edge frequency is fixed, and
your operating frequency may be indicated within the displayed bandwidth. These features have been carefully considered for
their utility in actual Amateur Radio operation.
Note:
The vertical axis of the Spectrum Scope display is approximately 10 dB per division.
U
SING
THE
CTR
(
C
ENTER
)
D
ISPLAY
M
ODE
In the CTR mode, the operating frequency is shown at the center of the monitor screen. The selected Spectrum Scope frequency
bandwidth is displayed across the monitor screen. Signals received on the VFO-A band are shown. (To show signals more clearly
and easily, the LBWS (Limited Band Width Sweep) function lets you perform a high-speed, high-resolution sweep of a limited
band segment (See page 4 for details).
1. Press and hold the
FT
DX
5000
[
C.S
] key for 2 seconds to
to engage the Scope Menu mode.
The
SUB DISPLAY-
I
window will show the Group name
(
SCOPE
), while the
SUB DISPLAY-
II
window will show
the Menu item. The
SUB DISPLAY-
III
window shows
the setting of the currently-selected Menu item.
2. Rotate the (
VFO-A
)[
SELECT
] knob to select the Menu
item “
MODE
”.
3. Rotate the (
VFO-B
)[
SELECT
] knob to select “
CENTER
”.
The current VFO-A frequency is displayed at the center
of the screen.
4. Rotate the (
VFO-A
)[
SELECT
] knob to select the Menu
item “
SPAN
”, then rotate the (
VFO-B
)[
SELECT
] knob
to select the desired frequency span to monitor.
Available selections are:
25 kHz
,
50 kHz
,
100 kHz
,
250
kHz
,
500 kHz
,
1000 kHz
, and
2500 kHz
.
5. Rotate the (
VFO-A
)[
SELECT
] knob to select the Menu item
“
ATT
”, then rotate the (
VFO-B
)[
SELECT
] knob to select
the display attenuation value according to current propaga-
tion conditions, your operating frequency, and antenna, etc.
Available selections are:
0 dB
,
10 dB
, and
20 dB
.
6. Press the [
C.S
] key briefly to save the new setting and
exit to normal operation.
(VFO-A)[SELECT] Knob
(VFO-B)[SELECT] Knob
[C.S] Switch
1. Press and hold the
FT
DX
5000
[
C.S
] key for 2 sec-
onds to engage the Scope Menu mode.
The
SUB DISPLAY-
I
window will show the Group
name (
SCOPE
), while the
SUB DISPLAY-
II
window
will show the Menu item. The
SUB DISPLAY-
III
win-
dow shows the setting of the currently-selected Menu
item.
2. Rotate the (
VFO-A
)[
SELECT
] knob to select the
Menu item “
TRACE
”, then rotate the (
VFO-
B
)[
SELECT
] knob to select the desired trace mode.
Available selections are shown at the right.
3. Press the [
C.S
] key briefly to save the new setting and
exit to normal operation.
C
HANGING
THE
T
RACE
M
ODE
NORMAL
:
The real-time signal strength will be displayed.
Normally, you will want to use this mode.
AVERAGE
:
The averaged signal strength will be dis-
played.
PEAKHOLD
: The Peak signal level will be displayed and
held until the frequency is changed.
Current VFO-A Frequency
TRACE Mode
NOR: Normal
AVG: Average
PEAK: Peak Hold
OPERATING Mode
CTR
