R&S ESR Series User Manual page 902

Emi test receiver
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®
R&S
ESR
To switch trace display back on, use the
Note: to enable the evaluation functions of the IQ Analyzer, you must also execute the
command TRACe<n>:IQ:EVAL.
Suffix:
<n>
Parameters:
<State>
Example:
Manual operation:
TRACe<n>:IQ:TPISample?
This command determines the time offset of the trigger in the sample (trigger position
in sample = TPIS). This value can only be determined in triggered measurements
using external or IFPower triggers, otherwise the value is 0. The value is not user-
definable.
Suffix:
<n>
Example:
Usage:
Manual operation:
11.6.2 I/Q Gating
Sometimes in spectrum analysis, measurements are based on a certain length of time
called the gate area. With I/Q gating, you can define the gate area using the gate
length, the distance between the periods and the number of periods. The gate length
and the distance between the capture periods are specified in samples.
I/Q gating is only available using remote commands; manual configuration is not possi-
ble.
Using I/Q gating, the gate area can be defined using the following methods:
Edge triggered recording
After a trigger signal, the gate period is defined by a gate length and a gate dis-
tance. All data in the gate period is recorded until the required number of samples
has been recorded.
User Manual 1175.7068.02 ─ 12
Remote Commands in I/Q Analyzer Mode
TRACe<n>:IQ:EVAL
.
irrelevant
ON | OFF
*RST:
OFF
TRAC:IQ ON
Switches on I/Q data acquisition
See
"I/Q Analyzer"
on page 459
.
irrelevant
TRAC:IQ:TPIS?
Query only
See
"Trigger Offset"
on page 378
Remote Control
command.
899

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