Boonton 4500B Peak Power Meter - Manual (Page 71)

Boonton 4500B RF Peak Power Analyzer
Getting Started 3-37
MENU ITEM EXERCISE
TRIG (continued)
Trig (Statistical)
Press the Trig > Gate 1 menu key to make it active. Use any of the data entry
> Gate 1 controls to enter a gate position that defines the start of the waveform segment to be analyzed.
Trig (Statistical)
Press the Trig > Gate 2 menu key to make it active. Use any of the data entry
> Gate 2 controls to enter a gate position that defines the end of the waveform segment to be analyzed.
REF
Press the REF function key and perform the following exercises to become familiar with the items
in the Ref > menu.
Ref > Ref Line 1
If Ref Line 1 is inactive, press the Ref > Ref Line 1 menu key to activate it. Use the spin knob or to
move Ref Line 1 to the power level where the desired measurement is to be made. Move the Ref
Line around the waveform and observe the percentage of occurrence shown above the left-hand
side of the waveform display in the parameter field. In CCDF this reading refers to the percentage
of the total readings that are above the power level for the reference line and are displayed in the
same color as the measured waveform.
Ref > Ref Line 2
Ref Line 2 is inactive, press the Ref > Ref Line 2 menu key to activate it. Use the spin knob to
move Ref Line 2 a few divisions away from Ref Line 1. Observe that the active reference line is
designated by triangles at left and right. Note that the reading above the right-hand side of the
waveform display window corresponds to Ref Line 2. Note also that the absolute delta of the
percent of Ref Line 1 and Ref Line 2 is displayed above the centerline of the waveform.
The first step in using the reference lines is to enable them and assign them to a channel.
Ref > Extensions > With Ref Line 1 active (white border), press the Ref > Extensions menu key to
see the current channel assignment for Ref Line 1. To change the assignment, press the Ref >
Extensions > Ref CH Sel menu key to display the list of assignments. Press the menu key next to
your choice. They are: -more-, Off (none selected), Active (the current active measurement
channel), CH1 and CH2. Press the -more- menu key to see the remaining choices, -more- (returns
to the previous list) , Trig 1, Trig 2, CH Math, Mem1 and Mem 2.
With Ref Line 2 active (white border), press the Ref > Extensions menu key to
see the current channel assignment for Ref Line 2. To change the assignment, press the Ref >
Extensions > Ref CH Sel menu key to display the list of assignments. Press the menu key next to
your choice. They are: -more-, Off (none selected), Active (the current active measurement
channel), CH1 and CH2. Press the -more- menu key to see the remaining choices, -more- (returns
to the previous list) , Trig 1, Trig 2, CH Math, Mem1 and Mem 2.