Making a Measurement with the Spectrum Analyzer
Making a measurement with the Anritsu Site Master S114B and S332B is similar to using
conventional spectrum analyzers. Users need simply to power-on and tune the Spectrum
Analyzer to locate and display a signal on the screen. Once a signal is displayed the user
can measure the signal input in four simple steps to determine the frequency and amplitude
of the signal. These steps include setting the center frequency, setting the frequency span,
setting the amplitude, and activating the marker.
Note: Frequency, span and amplitude are the fundamental functions for spec-
trum analyzer measurements. However, by using marker functions, you are
able to easily read out frequencies and amplitudes on the spectrum analyzer
trace. This lets you make relative measurements, automatically locate the sig-
nal of the highest amplitude on a trace, and tune the spectrum analyzer to track
a signal automatically.
Example – Measuring a 900 MHz signal
Step 1. Press
ON/OFF
then
ENTER
when prompted.
Step 2. Connect a signal generator to the RF input of the Spectrum Analyzer and config-
ure it to provide a
-
10 dBm, 900 MHz signal.
Set the Site Master to Spectrum Analyzer mode
Step 3. Press the
MODE
key.
Step 4. Use the Up/Down arrow key to scroll to
SPECTRUM ANALYZER
.
Step 5. Press the
ENTER
key.
Set the center frequency
Step 6. Press the
FREQ/DIST
key.
Step 7. Press the
CENTER
frequency soft key.
Note: To set the center frequency to 900 MHz, use the numerical keypad to the
right of the display. The data keys allow you to select the exact numeric value
of the active function, which in this example is the center frequency. Note that
all frequency values must be entered in values of MHz. When activating the
center frequency function, the spectrum analyzer is set to the center-frequency
span mode.
Step 8. Enter 9, 0, 0 using the Up/Down arrow key or the keypad and press
ENTER
to
set the center frequency to 900 MHz.
4-19
Chapter 4 Measurements
