Icom IC-7850 Instruction Manual - Page 119
Spectrum scope screen, SCOPE OPERATION
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Previous view 6 SCOPE OPERATION ■■Spectrum scope screen This DSP-based spectrum scope allows you to display the activity on the selected band, as well as the relative strengths of various signals. The IC-7850 has two spectrum scope modes. One is the Center mode, and another one is the Fixed mode. You can also select Dual scope, Single scope, and Waterfall display ON or OFF for your convenience. In addition, there is a mini scope screen to save screen space. NOTE: Spurious signal waveforms may be displayed. They are generated in the internal scope circuit and do not indicate a transceiver malfunction. • Center mode screen Center/Fixed mode icon Span (Display range) Main/Sub band icon Grid (frequency/level) Span (Display range) FFT scope zone (FFT: Fast Fourier Transform) Waterfall zone Display frequency (stays on Center) • Fixed mode screen Center/Fixed mode icon Edge (Lower frequency) Display frequency (moves) Main/Sub band icon Grid (frequency/level) Edge (Upper frequency) FFT scope zone Waterfall zone • Center mode screen (Dual scope: Side by Side) • Fixed mode screen (Waterfall OFF) 6-2