158 Keysig ht N9923-90001 User’s GuidePulse Measurements Mode – Option 330Pulse Measurement SettingsPulse TopPulse Top is NOT the same as the pulse Peak. Pulse Top is used to set andreport the reference power level. You enter a value in percent, and the PulseTop value is reported in the Auto Analysis table in dB down from 100% of thereference power level.How to set Pulse Top— Press Mrk ->/Tools— Then Pulse Top— Then enter a percent value between 0 and 100 using the numeric keypad,the arrows, or the rotary knob.— When set to 10%, 10 dB down from the 100% reference level isreported.— When set to 50%, 3 dB down from the 100% reference level isreported.— When set to 90%, 0.5 dB down from the 100% reference level isreported.GridEnables and disables the display of a 10 x 10 grid on the FieldFox screen.How to enable Grid display— Press Mrk ->/Tools— Then Grid— OFF Grid OFF— ON A grid of X/Y lines appears on the screen.Trace MemoryA memory trace is a pulse measurement Tr 1 data trace (NOT the trace in theZoom window) that has been stored in the FieldFox volatile memory. It thenbecomes static, meaning it is not updated with normal pulse measurements. Itcan be displayed on the screen by itself, or with a pulse trace for comparisonpurposes.The Tr 1 data trace is displayed in yellow.The memory trace is displayed in blue.How to display data and memory traces— Press Trace 6.
