Marker Menu - Anritsu Field Master MS2070A Measurement Manual

Spectrum Analyzer Measurements

MARKER Menu

Figure 3-31. MARKER Menu (1 of 2)
Spectrum Analyzer MG
PEAK SEARCH: Opens the
SELECT: Turns on the selected marker if it is off or makes it the active marker if it is
already turned on. Selecting the MARKER menu button for the first time will turn on
Marker 1 as a normal marker at the center frequency, and open the MARKER menu.
Selecting the MARKER menu button thereafter opens the MARKER menu to the current
active marker, which is displayed in the upper left-hand corner of the screen. When a
marker is turned on, it is a normal marker positioned at the center frequency of the
selected trace.
ENABLED: Enables the selected marker. When the toggle is off, the marker is disabled
and not shown on the screen.
FREQUENCY: Displays the marker frequency. For delta markers, the frequency is
relative to the reference marker. Change the marker frequency by dragging it to the
desired location. You can also change the marker frequency by pressing the
FREQUENCY button and changing it manually using the keypad controls.
AMPLITUDE: Displays the current marker amplitude. When the marker mode is set to
Normal or Delta, the amplitude is set by the trace. In that case, the amplitude is not
settable by the user. The button is grayed out, but the value is still updating with every
sweep. If the marker is a Fixed marker, the amplitude value can be changed by dragging
the marker to the desired location or by directly entering the amplitude using the keypad
control.
MODE: Select marker preference:
• Normal: A Normal marker is also known as a tracking marker. The frequency is
fixed but the amplitude value varies from sweep to sweep.
• Delta (Δ): A Delta (Δ) marker displays the delta frequency and amplitude between
itself and a reference marker. If Marker 1 is selected to be a Delta marker, then
Marker 2 is turned on as a reference marker for Marker 1 and it becomes a Normal
marker at the same location. The reference marker can then be switched to a Fixed
marker if desired.
• Fixed: A Fixed marker has a fixed amplitude and fixed frequency, which are
defined by the user and not related to the trace or sweep data.
FUNCTION: Sets the function of the currently selected marker to None, Noise,
Frequency Counter, or Quasi-Peak. For more information about using marker functions,
refer to "Marker Functions" on page
COUNTER RESOLUTION: Available when the marker function is set to Frequency
Counter. This setting adjusts the frequency counter marker resolution to 1 Hz, 100 mHz,
10 mHz, or 1 mHz. Lower resolutions will result in greater peak accuracy, but a slower
sweep.
PN: 10580-00447 Rev. E
"MARKER PEAK SEARCH Menu" on page
3-45.
3-9 Setting Up Markers
3-44.
3-43