Keithley 3930A Service Manual page 46

Multifunction synthesizer
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ELECTRICAL SPEClFlCATlONS (CONT.)
Memory
Memory Contents
Number of Memory Units
Battery Backup
Main
Frequency*, amplitude*, DC offset+, waveform, oscillation mode
Sweep-Related
Star?, stop*, center*, span*, marker+, frequency, sweep time*, sweep function
Trigger-Related
Trigger source, internal trigger rate*, burst wave number*, start/stop phase*
Other
n
duty cycle*, AN on/off, beep sound (on/off), output range mode AUTO/PXD Modify
Note: Parameters listed with * show cursor position and step size.
10 units
30 days or more after full charge (stored at room temperature)
Setting Protection When Power is Off
Functions
Parameters in effect prior to power-off are stored and become effective at next power on,
I
Storage Contents
Battery Backup
I (except for waveform outnut on/off).
1.
*
I
1 Same items as in Memory Contents, plus lock (on/off), GPIB address, delimiter.
1 Identical to Memory
Modify
Format
1 Per cursor movement and MODIFY knob.
Up/Down Step Sii
*1
1 In-es
or decreases the cursor position value by 1.
I
Parameters that can't be modified
i5
Increases or decreases the cursor position value by 5.
x+2
Multiplies or divides entire value by 2.
xi-10
Multiples or divides entire value by 10.
Note: The above step sizes apply only to the parameters listed with *in Memory Contents. Others
change step size by fl only, and cursor position is fixed.
Memory number, GPIB address, and delimiter
Display Function
Synchronously displays waveform output on/off, frequency, amplitude, DC offset, waveform, oscillation mode, AM on/off,
and sweep state.
1 Lock
Disables most front panel key entries and operating condition changes. Current parameter values can be displayed. GPIB input and certain
BNC inputs are enabled.

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