8 Trigger
8.1 Trigger
8.1.6 Absolute Trigger Level
Sets the absolute trigger level for the RF burst envelope.
NOTE
When using the External Mixing path, the Absolute Trigger Level is uncalibrated
because the factory default was set to accommodate the expected IF levels for
the RF path.
Remote Command
:TRIGger[:SEQuence]:RFBurst:LEVel:A
BSolute
<ampl>
:TRIGger[:SEQuence]:RFBurst:LEVel:ABSolute?
Example Set the trigger level of the RF burst envelope signal to the absolute level of 10dBm:
:TRIG:RFB:LEV:ABS 10 dBm
Notes Sending this command does not switch the setting from relative to absolute; to switch it you need to
send :TRIGger[:SEQuence]:RFBurst:LEVel:TYPE
For Bluetooth Mode, the default value is -50 dBm
Dependencies Only appears when RF Burst is selected as the Trigger, Gate or Periodic Sync Source
Couplings This same level is used for the RF Burst trigger source in the Trigger menu, for the RF Burst selection
in the Gate Source menu, and also for the RF Burst selection in the Periodic Sync Src menu
Preset LTEA FDD/TDD modes: -40 dBm or -50 dBm depending on the hardware
5G NR mode: -40 dBm
All other modes: -20 dBm
State Saved Saved in instrument state
Min -200 dBm
Max 100 dBm
Backwards
Compatibility SCPI
:TRIGger[:SEQuence]:FRAMe:RFBurst:LEVel:ABSolute
8.1.7 Relative Trigger Level
Sets the relative trigger level for the RF burst envelope.
In some models, the relative burst trigger function is implemented in hardware. In
other models, without the advanced triggering hardware required, the relative burst
trigger function is implemented in software in some measurements, and is
unavailable in other measurements.
When implemented in software, the relative RF Burst trigger function is
implemented as follows:
1.
The measurement starts with the absolute RF Burst trigger setting. If it cannot
get a trigger with that level, auto trigger fires and the acquisition starts anyway.
2349 Short Range Comms & IoT Mode User's &Programmer's Reference
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