Figure 2-56 Trigger Holdoff Pop-Up - Agilent Technologies N1911A User Manual

2 General Power Meter Functions
Slope
or
used to generate the trigger from an increasing power level. Similarly,
(and
change the setting, press
Holdoff
trigger event occurs, the trigger mechanism is disabled for the configured
time period. This allows stable triggering to be achieved even when a
signal has multiple edges, for example, a TDMA signal with non- constant
amplitude modulation. Values up to 400 ms can be configured.
To change the setting press
the required value in the Trigger Holdoff pop- up window to enter the new
value.

Figure 2-56 Trigger Holdoff pop-up

Complete the entry by pressing
Hysteresis
selected. The current setting is displayed below the
can use the hysteresis function to help generate a more stable trigger by
preventing triggering unless the RF power level achieves the trigger level
and the additional hysteresis value. It can be applied to both rising and
falling edge trigger generation. A maximum of 3 dB hysteresis can be
entered.
Rising Edge
When a rising power transition triggers the power meter, the triggering
system is disabled. The power meter does not trigger again if another
rising power transition is presented. The triggering system is re- armed
only when the input power falls below a level equal to the trigger level
minus the configured hysteresis value.
70
The current setting is displayed below the
symbol is displayed in single numeric display mode.
) is used to generate the trigger from a decreasing power level. To
The current setting is displayed below the
Hysteresis
is only available when
Slope
to highlight
Holdoff
and use the numeric keypad to enter
ns
ms us
, or
N1911A/1912A P-Series Power Meters User's Guide
Slope
label and the
+
(and
+ –
or as required.
Holdoff
label. After a
.
Norm
trigger mode has been
Hysteresis
label. You
) is
–