Icom IC-7610 Instruction Manual basic - Page 44

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. The transceiver has two spectrum scope modes, the Center mode and the Fixed mode. You can also turn the Waterfall display ON or OFF. In addition, you can select the Mini scope to display it in a smaller size on the screen. ••Center mode screen Span (Display range) Span (Display range) Center/Fixed mode icon Grid (frequency/level) Band icon (Main) Display frequency (stays on Center) Waterfall zone FFT (Fast Fourier Transform) scope zone ••Fixed mode screen Edge (Lower frequency) Edge (Upper frequency) Center/Fixed mode icon Grid (frequency/level) Display frequency (mobile) Waterfall zone Band icon (Sub) FFT scope zone DDMarker The marker marks the operating frequencies for both the Main and Sub bands in the SPECTRUM SCOPE screen. M: T he Main band marker ••Marks the Main band frequency. S: The Sub band marker ••Marks the Sub band frequency. T: The TX marker ••Marks the transmit frequency. LIn the Center mode, the operating frequency stays on the center of the screen. Therefore, neither the Main band marker on the Main scope, nor the Sub band marker on the Sub scope are displayed. DDUsing the Spectrum Scope Display the SPECTRUM SCOPE screen. MENU » SCOPE MENU 1: Center mode MENU 1: Fix mode MENU 2: Center/Fix mode Key Action Selects the Function menus. In the Center mode, selects the SPAN Touch scope span. ••Spans: ±2.5, 5.0, 10, 25, 50, 100, 250 and 500 kHz Touch 1 sec. Resets to the ±2.5 kHz span. In the Fixed mode, selects the Edge frequencies. EDGE LYou can set the upper and lower edge frequencies in the "Fixed Edges" item on the SCOPE SET screen by touching [EXPD/SET] for 1 second. Sets the Hold function to ON or OFF. HOLD Touch ••" HOLD " and the marker are displayed. Freezes the current spectrum. Touch 1 sec. Clears the Peak Hold level. CENT/FIX Selects the Center or Fixed mode. MAIN/SUB Selects the Main band or Sub band. DUAL Selects the Dual or Single scope. EXPD/ SET Touch Selects the Expanded or Normal screen. Touch 1 sec. Displays the SCOPE SET screen. REF Opens the Reference level window. LRotate MAIN DIAL to adjust the Reference level. SPEED Selects the sweep speed FAST MID) or "" (SLOW). Selects the Resolution Band Width from NAR (narrow), MID and WIDE. RBW LThis selection is for the filter that visually separates the spectrum. LWhen "NAR" is selected, the signals are finely separated. Selects the Video Band Width from NAR (narrow) and WIDE. VBW LWhen "Wide" is selected, the line drawn on the receive spectrum becomes wide. However, the small edge cannot be drawn. MARKER Selects various Markers. 5-1