Boonton 4530 Peak Power Meter User Manual - Manual (Page 27)

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Boonton Electronics Chapter 3
4530 Series RF Power Meter Operation
3.3 DISPLAY FUNCTIONS
The screen display of the 4530 is divided into three sections: the header, the measurement window and the status
window. Because these functions apply to all modes of operation, it is very important to understand them thoroughly.
Note that the display contrast may be adjusted by holding down the ESC key while pressing the
∧∧∧∧∧ ∨∨∨∨
or
∨ keys.
Header Status Window
Measurement Window
Figure 3-3. Display Functions
3.3.1 Header. The header appears at the top of the screen. It displays a title line and a line of text describing the
status of the currently highlighted item (sensor status, measurement status or auxiliary measurement values).
If the item is a submenu, a short description of the menu’s function will appear. If it is a parameter, the present
value for that parameter is shown. If it is an action item, the action will be described, and upon activation, the
message will change to indicate that the action has occurred. The header is also used as a two-line parameter
editing window when in the Edit mode.
3.3.2 Measurement Window. The major portion of the screen displays the current measurement results in a single
(4531) or split-channel (4532) format. The text display shows a trace for the primary measurement of the
channel(s) (usually average power), which updates as samples are acquired. In addition, while in the text mode,
the channel source (sensor, reference, or math function) is displayed along with measurement units. While in
the Graph mode, at slower display timebases, the trace will roll from right to left in chart recorder format, while
faster timebases use an oscilloscope-like sweep.
3.3.3 Status Window. The right-hand portion of the screen displays six annunciators that indicate status for the
GPIB, calibrator and measurement. The first four indicate GPIB status: REM, TLK, LSN, and SRQ. Position five
is a measurement status indicator, that can display: STOP, RUN, AUTO, ARMD, or SNGL. Position six displays
CAL when the calibrator output is active.
3.3.4 Channel Selection. Pressing the < or > keys while in text or graph mode toggles the measurement window
between channels. If Channel 1 is active, pressing < from a split-channel display will display only Channel 1,
and pressing > at that point returns to the split channel display. Similarly, pressing > from the split-channel
screen switches to the Channel 2 only display and < returns to the split-channel format. Note that in the single-
channel Model 4531, there is no “Channel 2 only” display, and while the split-channel display is present, there
are no measurements for Channel 2.
3.3.5 Header / Page Selection. Pressing the
∧∧∧∧∧ ∨∨∨∨
and
∨ Keys while in text or graph mode scrolls the display through
a series of three “measurement pages”, each displaying a different set of measurements or status indicators. In
single-channel text mode, the entire measurement window may change, while in graph mode or split-channel
format, only the “auxiliary” measurements shown in the header will change.