ES User’s Guide 7-17
Front/Rear Panel
Display
Table 7-4
1. If a "U" (for uncalibrated) appears here at any time, your instrument will not perform accurate measurements and needs servicing. See
Table 9-10, “Hewlett-Packard Sales and Service Offices,” in Chapter 9 for a list of Hewlett-Packard sales and service offices.
1 The data ? status notation in the upper left corner of the display screen indicates that the analyzer source
or receiver parameters have changed since the last complete sweep.
2
The active measurement channel indicator is designated by a solid right arrow ( ). The active
measurement channel's data trace and other parameter data is indicated by being brighter than the
inactive measurement channel's data.
3 The parameters for both measurement channels always appear at the top of the display in this area.
4 The type of measurement for each measurement channel is displayed here. If a measurement channel is
turned off, the display says "Off" here.
5
This is the display format that is selected using the key.
6
This is the Scale/Div that is selected using the key, in units appropriate to the current
measurement.
7 This is the reference level. This value is the reference line in Cartesian formats or the outer circle in polar
formats. The reference level is selected using the key.
8 A "C" appears here when a user-defined calibration is in use. If the frequency span has been narrowed, the
notation becomes "C?" to indicate that interpolated error correction is on. A "Cx" appears when
non-corrected, non-simultaneous measurements are being made (measuring calibration standards, for
example).
1
9 The message area is where you will receive messages from the analyzer from time to time. Most messages
appear only for a few moments before disappearing.
10 This area indicates whether the scale is absolute (Abs) or relative (Rel).
11 The sweep indicator appears here in the lower left corner of the display when the analyzer is sweeping at a
rate of less than 1.5 s. At sweeptimes above 1.5 s the sweep indicator moves across the screen with the data
trace.
12
The reference level for the active measurement channel is indicated by a solid right arrow ( ) adjacent to
the graticule on the left.
13 Title and date area.
14 Active entry area: used to enter or adjust values for operating parameters.
15 Marker annotation area.
16 When averaging is turned on, the average indicator appears here.
17 The measurement display icon appears here in the lower right corner of the display to indicate the signal
path direction of the current measurement. Refer to “The Measurement Display Icon” on page 3-7.
FORMAT
SCALE
SCALE
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