Rohde & Schwarz FSW Series, User Manual

Page: 241 / 371

Remote Commands for Analog Demodulation Measurements
R&S
®
FSW-K7
241 User Manual 1173.9240.02 ─ 17
Example: ADEM:RLEN?
Returns the current record length.
Usage: Query only
[SENSe:]ADEMod:SET <SampleRate> | <RecordLength> | <TriggerSource> |
<TriggerSlope> | <OffsetSamples> | <NoOfMeas>
This command configures the analog demodulator of the instrument.
Parameters:
<SampleRate> numeric value
The frequency at which measurement values are taken from the
A/D-converter and stored in I/Q memory.
Allowed range: refer to
chapter 4.3, "Sample Rate, Measure-
ment Time and Trigger Offset" , on page 29.
*RST: 8 MHz
<RecordLength> Number of samples to be stored in I/Q memory.
Range:
1 to 400001 with AF filter or AF trigger active, 1 to
480001 with both AF filter and AF trigger deactive
*RST: 501)
<TriggerSource> Selection of the trigger source to use for the demodulator. For
details on trigger sources see
"Trigger Source" on page 95.
IMMediate | EXTernal | EXT2 | EXT3 | IFPower | RFPower| AF
| AM | AMRelative | FM | PM
Note:
After selecting IF Power, the trigger threshold can be set
with the
TRIGger[:
​
SEQuence]:
​
LEVel:
​
IFPower
​
command.
*RST: IMMediate
<TriggerSlope> POSitive | NEGative
Used slope of the trigger signal.
The value indicated here will be ignored for <trigger source> =
IMMediate.
*RST:
POSitive
<OffsetSamples> Number of samples to be used as an offset to the trigger signal.
For details refer to
chapter 4.3, "Sample Rate, Measurement
Time and Trigger Offset" , on page 29.
The value indicated here is ignored for <trigger source> =
"IMMediate".
*RST:
0
<NoOfMeas> Number of repetitions of the measurement to be executed. The
value indicated here is especially necessary for the average/
maxhold/minhold function.
Range:
0 to 32767
*RST: 0
Configuring the Measurement