Boonton 4500B Peak Power Meter - Manual (Page 57)

Boonton 4500B RF Peak Power Analyzer
Getting Started 3-23
MENU ITEM EXERCISE
CHAN (continued)
Chan 1 > Exten
Press the Chan 1 > Extensions > Averaging menu key. Use any of the data entry
> Averaging controls to select the number of samples to be averaged at each point of the waveform to produce
the waveform display. Restore the normal setting of 8 before continuing to the next step.
TIME
Press the TIME function key and
perform the following exercises to
become familiar with the items in the
Time > menu (Figure 3-7):
Time > Timebase This selection will be highlighted. Use
the spin knob to step the timebase
through the range from 5 ns/Div to
1 s/Div. Observe the changes in the
display and note that for each selection,
the Time > Tr Dly reading remains
consistent with the limits set by the
resolution of the display and pre-trigger
memory.
For 10 s/Div to 60 min/Div, limits on
pre-trigger storage size may require
minimum trigger delay greater than zero
for the Middle and Right trigger positions.
Select the Left edge trigger position to
avoid this. See below.
Time > Position Press the Time > Position menu key to
shift the start of the waveform to the left
(L) edge, middle (M) or right (R) edge of
the display area.
Fig 3-7. Time > Menu
Note In practice, this feature is used to observe a specific segment of the waveform. Select ―L‖
to observe the waveform immediately after the trigger occurs; ―R‖ to observe the waveform immediately
before; and ―M‖ to observe segments of the waveform just before and after the trigger.