MDO3000 Programmer Manual.pdf - 第167页

Commands Listed in Alphabetical Order The maximum noi se percent is limited when AFG:AMPLitude is greater than 50% of its maximum setting value for the current function, in accordance wi th the following formula: Noise P…

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Commands Listed in Alphabetical Order
The following v
alues can be set for low level:
AFG:LOWLevel Setting Value
Load Impedance
FIFTY Ohm
Load Impedance
HIGHZ
Min Max Resolution Min Max Resolution
SINE
SQUare
PULSe
RAMP
NOISe
DC
1
HAVERSINe
CARDIac
ARBitrary
-2.5V 1.24V 1mV -5.0V 2.49V 2mV
SINC (Sin(x )/x)
-1.518V 1.248V 1mV -3.036V 2.496V 2mV
LORENtz
-1.233V 1.266V 1mV -2.466V 2.532V 2mV
GAUSsian
ERISe
EDECAy
-1.25V 1.24V 1mV -2.5V 2.5V 2mV
1
When the :AFG:FUNCtion is specified as DC, a change to the AFG:LOWLevel value results in a corresponding c hange to : AFG:OFFset. A corresponding
change to :AFG:AMPLitude is remembered but is not applied until the :AFG:FUNCtion is changed to a function other than DC.
Conditions
MDO3000 series with option MDO3AFG installed and MDO4000C series with
option MDO4AFG installed only.
Group
AFG
Syntax
AFG:LOWLevel <NR3>
AFG:LOWLevel?
Arguments
Floating point number that represents the AFG low level value, in volts.
Examples
AFG:LOWLEVEL 1.0 sets the AFG low level value to 1.00 volts.
AFG:NOISEAdd:PERCent
Sets (or queries) the AFG additive noise level as a percentage. Minimum is 0.0%,
maximum is 100.0% and increment is 1.0%.
2-136 MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual
Commands Listed in Alphabetical Order
The maximum noi
se percent is limited when AFG:AMPLitude is greater than
50% of its maximum setting value for the current function, in accordance with
the following formula:
Noise Percent Max = 100.0 * (Amplitudemax/Amplitude – 1.0)
Conditions
MDO3000 series with option MDO3AFG installed and MDO4000C series with
option MDO4AFG installed only.
Group
AFG
Syntax
AFG:NOISEAdd:PERCent <NR3>
AFG:NOISEAdd:PERCent?
Arguments
Floating point number that represents the AFG additive noise level, as a
percentage.
Examples
AFG:NOISEADD:PERCENT 50 sets the AFG additive noise level to 50 percent.
AFG:NOISEAdd:STATE
Sets (or queries) the AFG additive noise state.
Conditions
MDO3000 series with option MDO3AFG installed and MDO4000C series with
option MDO4AFG installed only.
Group
AFG
Syntax
AFG:NOISEAdd:STATE {0|1|OFF|ON}
AFG:NOISEAdd:STATE?
Arguments
1 orON turns on the AFG additive noise state.
0 or OFF turns it off.
Examples
AFG:NOISEADD:STATE ON turns on the additive noise state.
MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual 2-137
Commands Listed in Alphabetical Order
AFG:OFFSet
Sets (or queries) the AFG offset value, in volts. The offset values that can be
specified for each function and load impedance are in the table below. (To
specify the f
unction and load impedance, use the commands AFG:FUNCtion
and AFG:OUTPut:LOAd:IMPEDance.)
NOTE. The AFG:OUTPut:LOAd:IMPEDance command must be used before
using any of the amplitude/offset/highLevel/lowLevel/Preset commands, so that
saved setups are recalled with the proper load factor applied.
AFG:OFFSet Setting Value
Load Impedance
FIFTY Oh
m
Load Impedance
HIGHZ
Min Max Resolution Min Max Resolution
SINE
SQUare
PULSe
RAMP
NOISe
DC
SINC (
Sin(x)/x)
GAUSsian
LORENtz
ERIS
e
EDECAy
HAVERSINe
CARD
Iac
ARBitrary
-1.25V 1.25V 500uV -2.5V 2.5V 1mV
Conditions
MDO3000 series with option MDO3AFG installed and MDO4000C series with
option MDO4AFG installed only.
Group
AFG
Syntax
AFG:OFFSet <NR3>
AFG:OFFSet?
Arguments
Floating point number that represents the AFG offset, in volts.
2-138 MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual