Anritsu ML2430A - Manual (Page 44)

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TRIGGER MENU The Trigger function in the ML2430A allows the user to define under what condi-
tions measurements are taken, and the time period they are taken over. For in-
stance, the READOUT mode can be configured to display the average power of
the ON period of a square wave, or an individual slot in a GSM burst.
The
Trigger menus are always available in PROFILE operation mode, as selected
from the
System menu. If PROFILE cannot be selected within the System|Setup
submenu, change the GPIB mode to ML24XX in the System|Rear Panel
submenu.
In READOUT or POWER vs. TIME modes, the trigger setup menus are available
if the channel input configuration
SENSOR|Setup|MODE is set to CUSTOM. A
display channel using more than one sensor (A–B for example) where either sen-
sor is in CUSTOM mode, is assumed to be in custom mode and can use trigger-
ing. Trigger setup is available only for the display channels that meet the above
criteria.
In PROFILE mode, the display shows an ‘x’ marking the trigger point plus the dis-
play trigger delay time, updated for each new set of data. This trigger point mark
rotates as the profile data is updated, changing between '
´' and '+' on each data
update. On rapid updates, the trigger point mark may appear like a star ( S ), as it
is rotating so quickly. In manual, external or GPIB triggered displays, the mark ro-
tates at a slower rate and each true data update can be seen.
This point can be moved across the x axis by the pre trigger percentage. If the
trigger source is either default, mod average or custom continuous, the trigger
point has no meaning since the system is continuously triggering. The mark does
not appear in the Power vs. Time or Source Sweep modes, as it is not applicable.
Trigger icons indicate the type of triggering selected and appear level with the re-
lated channel on the far left of the screen. Trigger icons are not displayed if the
system is in Profile, Power vs. Time, or Source Sweep operation modes, if all
sensors used in a channel input configuration are in the DEFAULT measurement
mode, or if the peakmeter is displayed.
NOTE
When editing an entry in a menu, pressing the CLR key
clears the digits. If in a menu screen, pressing the CLR key
returns to the previous menu level.
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TRIGGER MENU OPERATION