3-3 Setting Frequency Parameters Spectrum Analyzer Measurements
3-2 PN: 10580-00447 Rev. H Spectrum Analyzer MG
3-3 Setting Frequency Parameters
Frequency-related parameters are set using the “FREQ / SPAN Menu” on page 3-6. The tuning frequency
range can be entered in several different ways depending upon what makes the most sense, either for the user
or for the measurement. The center frequency and span can be specified, the start and stop frequencies can be
entered.
Entering Start and Stop Frequencies
The frequency settings are displayed along the bottom of the spectrum or spectrogram graph. These
parameters can be accessed directly or via the FREQ SPAN menu.
1. Select FREQ SPAN on the main menu.
2. Select START FREQUENCY to open the start frequency parameter entry keypad.
3. Enter the desired start frequency. When entering a frequency with the keypad, available frequency units
(GHz, MHz, kHz, and Hz) will be displayed along the left edge of the menu.
4. Select the appropriate frequency unit to terminate the entry or press ACCEPT to terminate the entry
with the current frequency unit.
5. Select STOP FREQUENCY to open the stop frequency parameter entry keypad.
6. Enter the desired stop frequency. When entering a frequency with the keypad, available frequency units
(GHz, MHz, kHz, and Hz) will be displayed along the left edge of the menu.
7. Select the appropriate frequency unit to terminate the entry or press ACCEPT to terminate the entry
with the current frequency unit.
The center frequency will be set to exactly the middle of the start and stop frequencies. The current settings
are shown along the bottom of the spectrum or spectrogram graph (refer to the user guide for view the relevant
graphs).
Entering a Center Frequency
1. Select FREQ SPAN on the main menu.
2. Select CENTER FREQUENCY to open the center frequency parameter entry keypad.
3. Enter the desired center frequency. When entering a frequency with the keypad, available frequency
units (GHz, MHz, kHz, and Hz) will be displayed along the left and right edge of the menu.
4. Select the appropriate frequency unit to terminate the entry or press ACCEPT to terminate the entry
with the current frequency unit.
The current settings are shown along the bottom of the spectrum or spectrogram graph.
Note
To quickly move the start or stop frequency value up or down, press the + or – slider controls to
increment the frequency by the set FREQUENCY STEP. You can also drag the frequency using the
slider.
Note
To quickly move the center frequency value up or down, press the + or - slider controls to increment
the center frequency by the set FREQUENCY STEP. You can also drag the center frequency using
the slider or by dragging the trace directly.