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Yaesu SM-5000 - APRS Manual page 3

Station monitor
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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.
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
to engage the Scope Menu mode.
The SUB DISPLAY-
I window will show the Group name
SCOPE
SCOPE
SCOPE
SCOPE), while the SUB DISPLAY-
(SCOPE
the Menu item. The SUB DISPLAY-
the setting of the currently-selected Menu item.
2. Rotate the ( VFO-A )[ SELECT ] knob to select the Menu
MODE
MODE
MODE
MODE".
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
SPAN", then rotate the ( VFO-B )[ SELECT ] knob
SPAN
SPAN
SPAN
item "SPAN
to select the desired frequency span to monitor.
Available selections are: 25 kHz
kHz
kHz
500 kHz
500 kHz
1000 kHz
1000 kHz
kHz, 500 kHz
kHz
kHz
500 kHz
500 kHz, 1000 kHz
1000 kHz
1000 kHz, and 2500 kHz
5. Rotate the ( VFO-A )[ SELECT ] knob to select the Menu item
ATT
ATT
ATT
ATT", then rotate the ( VFO-B )[ SELECT ] knob to select
"ATT
the display attenuation value according to current propaga-
tion conditions, your operating frequency, and antenna, etc.
Available selections are: 0 dB
6. Press the [ C.S ] key briefly to save the new setting and
exit to normal operation.
1. Press and hold the FT
onds to engage the Scope Menu mode.
The SUB DISPLAY-
SCOPE), while the SUB DISPLAY-
SCOPE
SCOPE
SCOPE
name (SCOPE
will show the Menu item. The SUB DISPLAY-
dow shows the setting of the currently-selected Menu
item.
2. Rotate the ( VFO-A )[ SELECT ] knob to select the
TRACE
TRACE
TRACE
TRACE", then rotate the ( VFO-
Menu item "TRACE
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.
A
BOUT THE
CTR ( C
U
SING THE
5000 [ C.S ] key for 2 seconds to
II window will show
III window shows
CENTER
CENTER
CENTER
CENTER".
25 kHz
25 kHz, 50 kHz
25 kHz
50 kHz
50 kHz
50 kHz, 100 kHz
100 kHz
100 kHz
100 kHz, 250
25 kHz
50 kHz
100 kHz
2500 kHz
2500 kHz
2500 kHz.
2500 kHz
0 dB, 10 dB
0 dB
0 dB
0 dB
10 dB, and 20 dB
10 dB
10 dB
10 dB
20 dB
20 dB.
20 dB
20 dB
C
HANGING THE
5000 [ C.S ] key for 2 sec-
DX
I window will show the Group
II window
III win-
S
S
PECTRUM
COPE
) D
ENTER
ISPLAY
250
250
250
250
T
M
RACE
ODE
NORMAL:
NORMAL
NORMAL
NORMAL
NORMAL
The real-time signal strength will be displayed.
Normally, you will want to use this mode.
AVERAGE
AVERAGE: The averaged signal strength will be dis-
AVERAGE
AVERAGE
AVERAGE
played.
PEAKHOLD
PEAKHOLD: The signal level will be displayed, with peak
PEAKHOLD
PEAKHOLD
PEAKHOLD
strengths held for a few seconds.
-3-
M
ODE
[ C.S ] Switch
( VFO-A )[ SELECT ] Knob
( VFO-B )[ SELECT ] Knob
OPERATING Mode
Current VFO-A Frequency
CTR
TRACE Mode
NOR: Normal
AVG: Average
PEAK: Peak Hold

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