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8 Trigger

8.1 Trigger

8.1.1.21 Prot Event

Selects a protocol frame aligned Base Station Emulation as the trigger. When Prot

Frame Aligned is selected, a new sweep/measurement will start when the protocol

frame aligned data trigger condition is met.

Prot Event Trigger is defined as the Base Station Emulation protocol internal event

such as the starting of a predefined uplink pattern for a relative power control ramp.

With this trigger, the IQ data, and therefore the measurement, is aligned with the

start of the desired uplink pattern.

This trigger type is only available in UXM.

Example

:TRIG:<meas>:SOUR PRTF

Annunciation Prot Frame (in the Meas Bar)

8.1.2 Trigger Level

Sets the amplitude level for Trigger and Gate sources that use level triggering.

When the video signal crosses this level, with the chosen slope, the trigger occurs.

For any given Trigger, Gate, or Periodic Sync Src, the same Trigger Level is used for

the Trigger source in the Trigger menu, for the Gate source in the Gate Source

menu, and for the Periodic Sync source in the Periodic Sync Src menu.

If Video is the selected trigger source, the trigger level displays as a green horizontal

line with the label TRIG LVL just above it on the right:

If the value of trigger level is off screen low this line displays along the bottom of the

graticule. If the value of trigger level is off screen high this line displays above the

graticule but no farther above than 1.5 % of the graticule height (the same as the

trace itself). Note that the TRIG LVL label cannot display above the graticule so the

label itself stops at the top of the graticule.

For the I/Q Triggers, the I/Q reference impedance is used for converting between

power and voltage.

2341 Short Range Comms & IoT Mode User's &Programmer's Reference

Keysight x-series Instruction Manual

Other manuals for Keysight x-series