Freedom R8100 SERIES, Operator'S Manual

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1/DeltaT – The numeric reading shows the inverse of the time difference between markers which can be
used to determine the frequency of a repetitive waveform.
Toggle Marker
Cycles through the available markers to select the active one (yellow) for positional adjustment on the
display. The active marker is moved using the Left/Right (◄►) cursor control buttons.
Trigger Mode
Selects the trigger mode for the horizontal sweep via a submenu. The choices are as follows:
Auto – If a signal satisfying the Trigger Edge and Trigger Level settings is present the display will sweep
as in Normal mode. If no signal satisfying the Trigger Edge and Trigger Level settings is present then the
display sweeps continuously until a signal satisfying the settings is acquired.
Normal – The display sweeps only when the input signal satisfies the Trigger Edge and Trigger Level
settings.
Single – The display sweeps once after a key press is performed on the Single soft key if the signal satisfies
the Trigger Edge and Trigger level settings.
Trigger Level
Adjusts the signal threshold at which a horizontal sweep is initiated. The soft key activates a numeric
entry box and the Left/Right (◄►) keys move the highlight over the desired number field. Numeric
changes are entered directly using the keypad, or in steps with the Up/Down (▲▼) keys or spin knob.
Trigger Position
Adjusts the amount of pre-trigger waveform displayed on the screen via selections on a horizontal
submenu. The choices are 10%, 50%, or 90% of the display allocated to the waveform preceding the
trigger threshold.
Trigger Edge
Determines which waveform edge is used to trigger the modulation scope sweep via selections on a
horizontal submenu. The selections are Rising, Falling, or Either.
Scope Mode
Selection of the Monitor or Generator modulation waveform in Duplex mode.
Vertical Position
Adjusts the vertical position of the waveform on the display using a horizontal submenu. Pressing the
Move Up and Move Down soft keys shifts the waveform position by fixed increments.
2.2.4.3 Oscilloscope settings
The R8100 analyzer provides a general purpose oscilloscope with calibrated vertical input sensitivities
and automatic or triggered horizontal sweep rates. Use the scope to analyze waveforms, detect asymmetric
modulation or audio distortion, trace signals, and troubleshoot subsystems or circuits. The Meter In port
serves as the vertical input for the Oscilloscope.