Icom IC-7610 Instruction Manual advanced - Page 44

Sweep speed, Adjusting the Reference level

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3. ADVANCED SCOPE OPERATION Spectrum Scope screen (Continued) DDAdjusting the sweep speed Select the sweep speed to change the FFT scope refresh speed and the waterfall speed. LTo change only the waterfall speed, select "Slow," "Mid," or "Fast" in the Waterfall Speed. 1. Display the SPECTRUM SCOPE screen. MENU » SCOPE 2. Touch [] 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. LA 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. DDAdjusting the Reference level When monitoring a weak signal that is buried in the noise floor, or monitoring a strong signal but some 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. MENU » SCOPE 2. Touch [] to display the Menu 2. 3. Touch [REF]. Displayed 4. To exit the SPECTRUM SCOPE screen, push EXIT . 4. Rotate MAIN DIAL 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 EXIT . Difference in the spectrum Reference level (+10.0 dB) (-30.0 dB) +10.0dB ±0.0dB -30.0dB LIf 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. 38

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38
3. ADVANCED SCOPE OPERATION
Spectrum Scope screen (Continued)
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.
MENU
»
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
EXIT
.
D
Adjusting the Reference level
When monitoring a weak signal that is buried in the
noise floor, or monitoring a strong signal but some
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.
MENU
»
SCOPE
2.
Touch [<MENU1>] to display the Menu 2.
3. Touch [REF].
Displayed
4. Rotate
MAIN
DIAL
to adjust the level.
• Adjustable range: –30.0 dB ~ +10.0 dB
L
You can reset to ±0.0 dB by touching [DEF].
5.
To exit the SPECTRUM SCOPE screen, push
EXIT
.
Difference in the spectrum
+10.0dB
±0.0dB
–30.0dB
Reference level
(+10.0 dB)
(–30.0 dB)
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.