Boonton 4530 Peak Power Meter User Manual - Manual (Page 34)

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Chapter 3 Boonton Electronics
Operation 4530 Series RF Power Meter
3.7.1 Entry. When the Graph key is pressed, the 4530 enters Graph Mode.
3.7.2 Measurement Page Selection. Pressing the
∧ or ∨ keys while in Graph Mode pages the header display up
or down through several commonly used measurements or parameters. See paragraph 3.9 (Display Formats) for
a list of what measurements are displayed in each format.
3.7.3 Channel Selection . Pressing the < or > keys while in Text mode switches the display between channels.
The keys toggle the display between “CH1 < > BOTH < > CH2”. This is helpful to distinguish between traces
when two channels are being viewed, or to concentrate on settings for one of the channels. Single-channel
units (Model 4531) can only page between the CH1 and BOTH display formats.
3.7.4 Measurement Control. Pressing Enter/Run while in Graph Mode starts the measurement, if it is stopped, or
arms the trigger if Single-Sweep Mode is active. Pressing ESC/Stop stops the measurement if it is running and
holds the current measurement values. Once stopped, pressing ESC/Stop again clears the measurement result,
and resets for a new measurement. Any time measurement is stopped, it is possible to change display settings
or certain measurement parameters, and the current measurements displayed will be updated accordingly.
Also, cursors can be moved around to view the power at selected times without the need to restart the
measurement.
3.7.5 Parameter Editing from Graph Mode. Pressing Graph while already in Graph Mode will enter Edit Mode
for the first active channel. The screen’s measurement window continues to display and update the active
measurement, but the two-line header area at the top of the screen is used as an edit window. Pressing Graph
again switches Edit Mode to the second channel, if active. Another press of the Graph key returns to normal
Graph Mode. See paragraph 3.8 (Edit Mode Operation) for more details.
3.8 EDIT MODE OPERATION
Edit mode is an extension of Graph Mode or Text Mode operation which allows common measurement parameters to be
edited in the header area while the active measurements continue to update in the measurement window. The arrow
keys scroll through a list of commonly accessed parameters, and allow these parameters to be updated “on the fly”
without the need to return to Menu Mode. This interactive mode allows parameters to be changed in real time while
viewing the effect of these changes as they are made.
3.8.1 Entry, Exit, and Channel Selection. Edit Mode is entered from Text Mode by pressing the Text key or from
Graph Mode by pressing the Graph key. Edit mode is always entered for the first active channel currently
displayed. If the display is in single-channel mode, only one channel is displayed and Edit Mode is entered
for that channel. If both channels are active and displayed, Channel 1 will be active first. Pressing Text or
Graph again switches to the next active channel, or returns to regular Text Mode or Graph Mode once both
channels have been accessed or if the next channel is not active.
3.8.2 Screen Display. When Edit Mode is active, the two-line header area becomes the edit window while the rest
of the display continues to function normally. The top line of the Edit Window is used for parameter selection.
It is a list of parameters that are commonly accessed from the present mode. The second line displays the
active channel and the value of the currently selected parameter for that channel. Note that some parameters
are global (not channel specific), and may be accessed from either channel with the same results.
3.8.3 Parameter Selection. The < and > keys are used to scroll the top header line to select an item to display
or edit. The list is a continuous loop, which may be scrolled left or right, and the center item on the display is
always highlighted to indicate it is currently selected.