### TRIGger<Ch>...

This subsystem is used to synchronize the analyzer's actions (in particular, the start of a measurement sequence) with events.

Command tree: TRIGger<Ch>

[:SEQuence]

:HOLDoff

:LINK

:SLOPe

:SOURce

:TIMer

#### TRIGger<Ch>[:SEQuence]:HOLDoff <numeric_value>

Sets a delay time between the trigger event and the start of the measurement (Trigger Delay).

<Ch> | Channel number. If unspecified the numeric suffix is set to 1.
<numeric_value> | Delay time.
Range [def. unit] | 0 s to 13680 s [s]. UP and DOWN increment/decrement the trigger delay in 10 ms steps.
*RST value | 0 s
SCPI, Command Types | Confirmed, command or query
Example: | TRIG:SOUR TIM Activate internal timer as trigger source. TRIG:HOLD UP Set a delay time of 10 ms.

#### TRIGger<Ch>[:SEQuence]:LINK
'POINT' | 'SWEEP' | 'PPOINT' | 'SEGMENT'

Selects the Triggered Meas. Sequence. The identifier for the sequence is a string variable.

<Ch> | Channel number.
'SWEep' | | Trigger event starts an entire sweep.
'SEGMent' | | Trigger event starts a sweep segment, if segmented frequency sweep is active (see example below). If another sweep type is active, the trigger event starts an entire sweep.
'POINt' | | Trigger event starts measurement at the next sweep point.
'PPOint' | Trigger event starts the next partial measurement at the current or at the next sweep point.
*RST value | 'SWEep'
SCPI, Command Types | Confirmed, command or query
Example: | SEGM:ADD; SWE:TYPE SEGM Select segmented frequency sweep. TRIG:LINK 'SEGM' Select a trigger segment as triggered measurement sequence.

#### TRIGger<Ch>[:SEQuence]:SLOPe
POSitive | NEGative

Qualifies whether the trigger event occurs on the rising or on the falling edge of the external TTL trigger signal.

<Ch> | Channel number.
POSitive | | Rising edge.
NEGative | Falling edge.
*RST value | POSitive
SCPI, Command Types | Confirmed, command or query
Example: | TRIG:SOUR EXT Activate external signal as trigger source. TRIG:SLOP NEG Trigger on the negative edge of the (external TTL) trigger signal.

#### TRIGger<Ch>[:SEQuence]:SOURce
IMMediate | EXTernal | TIMer | MANual

Selects the source for the events that the analyzer uses to start a sweep.

<Ch> | Channel number.
IMMediate | Free run measurement without waiting for trigger events
EXTernal | Trigger by external signal applied to pin 2 of the USER CONTROL connector on the rear panel.
TIMer | Periodic internal trigger signal. The period of the timer is specified by the TRIGger[:SEQuence]:TIMer command.
MANual | Trigger signal generated by pressing the Manual Trigger softkey.
*RST value | IMMediate
SCPI, Command Types | Confirmed, command or query.
Example: | TRIG:SOUR MAN Activate manual trigger mode. The analyzer starts the next sweep when the Manual Trigger softkey is pressed.

#### TRIGger<Ch>[:SEQuence]:TIMer <numeric_value>

Sets the period of the internal periodic signal that can be used as a trigger source (TRIGger<Ch>[:SEQuence]:SOURce TIMer
).

<Ch> | Channel number. If unspecified the numeric suffix is set to 1.
<numeric_value> | Timer period
Range [def. unit] | 1E-005 s to 13680 s [s]. UP and DOWN increment/decrement the timer period in 10 ms steps.
*RST value | 1 s
SCPI, Command Types | Confirmed, command or query
Example: | TRIG:SOUR TIM Activate internal timer as trigger source. TRIG:TIM 0.1 Set a timer period of 100 ms.