Icom IC-905, Basic Manual, Page: 49 / 96

5-1
BASIC MANUAL
4
5
5
SCOPE OPERATION
Spectrum scope screen
The spectrum scope enables you to display the
activity on the selected band, as well as the relative
strengths of various signals in that band.
The transceiver has three spectrum scope modes, the
Center mode, the Fixed mode, and the Scroll mode.
You can also turn the Waterfall display ON or OFF.
In addition, you can select the Mini scope to display
the scope in a smaller size on the screen.
• Center mode screen
• Fixed mode screen
• Scroll mode screen
* When in the SCROLL-C mode, is displayed.
D
Using the Spectrum Scope
Display the SPECTRUM SCOPE screen.
»
SCOPE
Key Action
< 1 >/< 2 > Selects the Function menus.
SPAN
Touch
In the Center mode and the
Scroll-C mode, opens the scope
span window.
L
Touch [+] or [–] to select the
scope span.
L
Touch [SPAN] again to close the
window.
Touch for
1 second Resets to the ±2.5 kHz span.
EDGE
In the Fixed mode and the Scroll-F mode,
selects the Edge frequencies.
L
You can set the upper and lower Edge
frequencies in “Fixed Edges” on the
SCOPE SET screen by touching [EXPD/
SET] for 1 second.
HOLD
Touch
Turns the Hold function ON or
OFF.
•
HOLD
and the Marker are
displayed. Freezes the current
spectrum.
Touch for
1 second Clears the Peak Hold level.
CENT/FIX
Touch Selects the Center or Fixed mode.
Touch for
1 second Selects the Scroll mode.
EXPD/SET
Touch
Selects the Expanded or Normal
screen.
Touch for
1 second
Displays the SCOPE SET screen.
L
See the Advanced manual for
details.
REF
Opens the “REF Level” window.
L
Rotate to adjust the Reference
level.
L
Touch again to close the window.
SPEED
Selects the sweep speed.
• “

” (FAST), “

” (MID), or “

” (SLOW).
MARKER Selects the Marker.
MENU 1: Center/Scroll-C mode
MENU 1: Fix/Scroll-F mode
MENU 2: Center/Fix/Scroll-C/Scroll-F mode
Operating frequency (stays in the Center)
FFT scope zone
(FFT: Fast Fourier Transform)
Waterfall zone
Span (Display range)
Mode icon
Grid (frequency/level)
Span (Display range)
Operating frequency (moves)
FFT scope zone
Waterfall zone
Edge (Lower frequency)
Mode icon
Grid (frequency/level)
Edge (Upper frequency)
Operating frequency (moves)
FFT scope zone
Waterfall zone
Edge (Lower frequency)
Mode icon*
Grid (frequency/level)
Edge (Upper frequency)