GSP-830 User Manual 80 Select Signal Detection Mode Background In order to show the incoming signal on the display, the GSP-830 first converts the input signal to a video signal, digitizes it, then uses a detector to pick up the samples for display. By configuring the detection mode, certain signals can be viewed more clearly and/or sharply. Panel operation 1. Press the Trace key. Trace 2. Press F6 (More). MoreF 6 3. Press F3 (Detection). Detection..F 3 4. Select the signal detection type from F1 to F5 and press it. See below for the description of each type. NormalF 1SampleF 2Peak+F 3AVGF 4QPeakF 5 5. Press F6 (Return) to go back to the previous menu. ReturnF 6 Parameter Normal The default mode. When the signal level is constantly increasing or decreasing, the positive peaks are detected. Otherwise, detecting mode switches between positive peak and negative peaks. Useful for picking up burst phenomenon while avoiding excessive noise. Sample Detects signals randomly. Useful when detecting noise-like signals, but tends to miss burst phenomenon. Peak+ (positive peak) Detects positive peak signals. Useful for detecting sinusoid signals, but tends to pick up more noise than other modes.