Boonton 4500B Peak Power Meter - Manual (Page 117)

Boonton 4500B RF Peak Power Analyzer
Operation 4-45
Table 4-9. Trig > Menu (continued)
Menu Item Function
(Type) Selections (SCPI cmd)
The choice of internal or external triggering will depend on the
characteristics of the measured signal.
To select a trigger source press the Trig > Trig Source key to view the
list of available sources; CH1 and Ext Trig 1 (single channel); CH 1,
CH 2, Ext Trig 1and Ext Trig 2 (dual channel).
Press the menu key next to the source selected. The menu will return to
the Trig > menu with the selected source displayed.
* In the gated Statistical mode the Trig > Menu is a submenu of
Trig > Trig Setup (Trig A).
TRIGger:SOURce {CH1, CH2, TRIG1,
TRIG2}
Trig Level Pulse, Mod & Stat* S ets the threshold level for the trigger signal.
(Numeric) Auto Pk/Pk trig mode:
AUTO LEVEL In the Auto Pk-to-Pk mode the trigger level is
adjusted automatically.
Auto and Normal trig
modes: Internal source
Continuous Range: Press Trig > Trig Level to highlight this
selection and use any of the
data entry controls to adjust the trigger level
for the internal trigger source. (Trigger level
settings are set independently for each trigger
source.)
The range of the internal trigger level is
determined by the sensor model in use. For
all peak sensor models the trigger range
includes the sensor‘s maximum power and
extends down to the level at which noise
begins to interfere with triggering (High
Bandwidth).
The trigger range is automatically adjusted
to include the dB Offset parameter selected
in the Chan # > Exten > Corrections menu.
For example, if the trigger level = 10 dBm
and the dB Offset is changed from 0 to 20 dB,
the trigger level will change to 30 dBm. The Fig 4-27c. Trig > menu
trigger range is shifted upward by 20 dB. Pulse; Normal trigger