Anritsu ML2430A operation manual Trigger Menu, External

OPERATION TRIGGER MENU

NOTE

External trigger is only effective at 800 KHz or lower.

Setup

NOTE

Simultaneous trigger channels guarantee identical sampling for both channels, essen- tial for accurate ratio (A/B) measurements.

The trigger icons appear as shown in Figure 4-2.

Modulated Average	MOD
Continuous
Manual	MAN
	Rising Edge		Falling Edge
Internal A		INT		INT
		A		A
Internal B		INT		INT
		B		B
External		TTL		TTL

Figure 4-2.Trigger Icons

Only when a channel input configuration includes a sensor with a measurement mode that requires an icon, will an icon be displayed.

This menu is used to set up the trigger conditions for the display channels. In readout display mode with sensor mode set to custom, the trigger can be set to display channel 1 and 2 separately, or together as channel 1 & 2.

The channels are triggered simultaneously if the trigger conditions are set to 1 &

2.This guarantees the trigger conditions are the same, and therefore the read- ings are taken at the same time. In Readout and Power vs. Time modes, if the menu is exited with the trigger selection at channel 1 & 2, this setup is used for trigger control. Otherwise, if the trigger setup display is left with channel 1 or channel 2 displayed, the individual trigger settings are used for trigger control.

CHANNEL	Select display channel 1 or 2 (or 1&2 when setting trigger condi-
[TRGMODE]	tions in Readout or Power vs. Time modes).
SOURCE	The trigger sources are CONTINUOUS, Internal A, Internal B
[TRGSRC	(ML2438A only), EXTTTL, or MANUAL . When the trigger source is
GTSRC]	set to INT A or INT B (Internal A or B) the power meter triggers on
	a rising or falling power level on the associated sensor. See LEVEL
	for the setting of the trigger power level.

ML2430A OM 4-17