HP ESA-L1500A, User'S And Calibration Manual

Page: 43 / 326

42 Chapter 2
Getting Started
Making a Measurement
If another function is activated, the frequency and amplitude can
still be identified by looking at the marker readout in the upper right
corner of the display.
Measurement Summary
1. Press the
Preset
key. Turn on the internal 50 MHz signal by pressing
System
,
50 MHz osc On Off
(On).
2. Set the center frequency by pressing the following keys:
Frequency
,
50 MHz
.
3. Set the span by pressing the following keys:
Span
,
20 MHz
.
4. The calibration signal is about
−
27 dBm (25 dBmV for Option 1DP),
below the top of the screen (almost three graticule divisions) using
these spectrum analyzer settings. If desired, adjust the reference
level: press
Amplitude
to activate the reference level, and use the
knob or step keys to change the reference level and bring the signal
to the top of the screen.
5. Determine the amplitude and frequency of the signal. You can either
press
Peak Search
or press
Marker
and move the marker to the signal
peak. Read the amplitude and frequency. The display should look
like the one in
Figure 2-5 . Frequency is displayed horizontally, and
amplitude (power) is displayed vertically.