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3. ADVANCED SCOPE OPERATION
D Adjusting the sweep speed
Select the sweep speed to change the FFT scope
refresh speed and the waterfall speed.
L To change only the waterfall speed, select “Slow,”
“Mid,” or “Fast” in the Waterfall Speed.
1. Display the SPECTRUM SCOPE screen.
» SCOPE
2. Touch [<MENU1>] to display Menu 2.
3. Touch [SPEED] several times until the desired
sweep speed is selected.
• Selectable speeds: FAST, MID, or SLOW
L“,” “,” or “” indicates FAST, MID, or SLOW.
L A popup window is displayed in the center of the
SPECTRUM SCOPE screen and displays the
selected sweep speed for 1 second.
“,” “,” or “” is displayed.
Displays the sweep speed.
4. To exit the SPECTRUM SCOPE screen,
push
.
D Adjusting the Reference level
When monitoring a weak signal that is buried in the
stronger signals are nearby, adjusting the Reference
level of the screen helps you to see these signals.
• Even if this setting is changed, it does not affect the
input signal level.
• When you adjust the Reference level, the signal
strength for the waterfall also appears to change.
1. Display the SPECTRUM SCOPE screen.
» SCOPE
2. Touch [<MENU1>] to display the Menu 2.
3. Touch [REF ].
Displayed
4. Rotate
to adjust the level.
• Adjustable range: –30.0 dB ~ +10.0 dB
LYou can reset to ±0.0 dB by touching [DEF].
5. To exit the SPECTRUM SCOPE screen, push
.
Difference in the spectrum
+10.0dB
±0.0dB
–30.0dB
Reference level
L If you adjust this setting to a positive level, all
signal levels appear stronger.
Or, if you adjust to a negative level, all signal
levels appear weaker.
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