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Making Basic Measurements Using Spectrum Analyzer Mode
Measuring low-level Signals Using Attenuation, Video Bandwidth, and Video Averaging
NOTE
The total power of all input signals at the spectrum analyzer input must not exceed the maximum
power level for the spectrum analyzer.
1. Connect an antenna to the spectrum analyzer input. Press
(PRESET).
2. Reduce the frequency range to view a low-level signal of interest. For
example, narrow the frequency span from 88 MHz to 108 MHz by pressing
(FREQUENCY), START FREQ , 88
m,
STOP FREQ , 108
(MHz_).
3. Place a marker on the low-level signal of interest. Press
IIVIKR]
and use the
knob to position the marker at the signal’s peak.
4. Place the signal at center frequency by pressing
(MKR)
then
MARKER
-CF.
5. Reduce the span to 10 MHz. Press
(SPAN),
and then use the step-down key
(m).
See Figure 4-15.
FULL
SPAN
Figure 4-15. low-level Signal
4-23
