Icom IC-905, Основное руководство

Страница: 51 / 96

5-3
BASIC MANUAL
SCOPE OPERATION
5
5
Spectrum scope screen
D
Touch screen operation
By touching the FFT scope zone or the waterfall zone
in the SPECTRUM SCOPE screen, the area will be
zoomed in. Then you touch the signal in the zoomed
area, you can directly tune your frequency to the
signal.
L
Holding down changes the transmit frequency.
1. Display the SPECTRUM SCOPE screen.
»
SCOPE
2. Touch the Scope screen.
• The area around the touched point is zoomed in.
3. Touch the signal in the zoomed area.
L
Information
• In the Center mode, the operating frequency changes
to the touched point, and the point moves to the
screen center.
• In the Fixed mode, the operating frequency and
marker change to the touched point.
• Touch out of the zoomed area to close the zoomed
window.
D
Mini scope screen
The Mini scope screen can be simultaneously
displayed with another function displays, such as
the RTTY DECODE screen and the AUDIO SCOPE
screen.
Push to turn the Mini scope screen ON or
OFF.
L
Hold down for 1 second to display the
SPECTRUM SCOPE screen.
Audio scope screen
This audio scope enables you to display the received
signal’s frequency component on the FFT scope, and
its waveform components on the Oscilloscope. The
FFT scope also has a waterfall.
Display the AUDIO SCOPE screen.
»
AUDIO
Key Action
ATT
Touch
Selects the attenuator for the FFT
scope.
• 0 (OFF), 10, 20, or 30 dB
Touch for
1 second Turns OFF the attenuator. (0 dB)
HOLD
Turns the Hold function ON or OFF.
•
HOLD
is displayed and freezes the current
audio spectrum.
LEVEL
Selects the Oscilloscope level.
• 0, –10, –20, or –30 dB
TIME
Selects the Oscilloscope sweep time.
• 1, 3, 10, 30, 100, or 300 ms/Div
EXPD/SET
Touch
Selects the Expanded or Normal
screen.
Touch for
1 second
Displays the AUDIO SCOPE SET
screen.
L
See the Advanced manual for
details.
• AUDIO SCOPE screen
Waterfall zone
FFT scope zone
Oscilloscope