Boonton 4500B Peak Power Meter - Manual (Page 65)

Boonton 4500B RF Peak Power Analyzer
Getting Started 3-31
MENU ITEM EXERCISE
Top Level (continued)
Ref 1, R Delta and Ref 2 - These are the values returned as readings from the
horizontal reference lines. The reference lines are set in power and return a value in percent.
Press the TEXT button and the screen changes to the text mode to show markers, reference lines,
and all the automatic measurements on one screen. Press the TEXT button again to change the
screen back to the graph display.
CHAN
Press the CHAN function key and perform the following exercises to become familiar with the
items in the Chan 1 > menu. Continue to press the CHAN function key and the channels will be
sequentially selected, CH 2, Ext Trig 1, Ext Trig 2, CH Math, Mem 1, Mem 2 and back to CH1.
Chan 1 > Select
Press the Chan 1 > Selection key to open the Chan 1 > Chan Select > 1 of 2 channel selection
menu. The first page lists channels CH 1, CH2, Ext Trig 1, Ext Trig 2, CH Math and < -more->. If
the channel you seek is not listed, press the Chan 1 > Chan Select > 1 of 2 <-more-> key. Chan
1 > Chan Select > 2 of 2 lists Mem 1, Mem 2 and <-more->.
Note There are 2 ways to locate a channel menu. The first is stepping through the list by repeatedly
pressing the CHAN function key. The second is by pressing the current Chan_ > Selection key to
obtain a menu of channels.
When CH Math is current in the Chan > Select window, those instruments equipped with the
optional Channel 2 will display the difference between the signals applied to Channels 1 and 2.
Use the Chan (CH Math) > Expression window to set the operation of the (CH Math) display.
Use the CHAN function key or the Chan_ > Selection menu key to re-select
CH 1 before proceeding.
Chan 1 > Channel
Press the Chan > Channel menu key to toggle the CH 1 display ―Off ―and ―On‖. The waveform
should disappear and reappear. (Leave it ―On‖.)
Chan 1 > Vert Scale
If the Chan 1 > Vert Scale selection is not active, press the Chan1 > Vert Scale menu key. Use the
spin knob or to step the vertical sensitivity of the display through the range from 0.1 dB/Div to 20
dB/Div. Observe the resulting changes in the pulse height, and note that the VertScale parameter
changes at each step to match the selected sensitivity. Note also that the display is rescaled without
recapture of data, and that the markers continue to make full-resolution measurements on
waveforms that are off the screen.