R3132 Series Spectrum Analyzer Operation Manual
2.2.4 Measuring Frequency Using Counter
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Removing the window
17. Press Window ON/OFF(OFF).
The measuring window is turned off.
2.2.4
Measuring Frequency Using Counter
The counter function measures the signal frequency at the marker with high accuracy.
You do not have to precisely position the marker on the peak you wish to measure however you should
note that the displayed amplitude value corresponds to the marker position.
The maximum resolution possible for the counter function display is 1 Hz. As the resolution becomes
higher, the gate time becomes longer. As a result, the sweep period becomes longer.
NOTE:
1.
The counter function may not work normally if the span is greater than 200 MHz or the difference between
the marker and the noise level is 25 dB or less.
2.
The signal track mode cannot be used with this function.
The following example shows how to measure the frequency.
Power on
1.
Turn the spectrum analyzer power on.
Initialization
This resets the current settings to the factory defaults.
2.
Press SHIFT and CONFIG(PRESET).
The default settings have now been reset.
Input signal connection
Connect the calibration signal used for the measurement.
Setting the measurement conditions
This changes the analyzer settings so that the input signal is displayed more clearly.
3.
Press FREQ, 3, 0 and MHz.
A center frequency of 30 MHz is set.
4.
Press SPAN, 5, 0 and MHz.
A frequency span of 50 MHz is set.
