The Ingress Resistance measurement mode graph continuously updates as each frequency is measured. The Ingress Resistance measurement mode allows for a 20 Mhz frequency span. Within the frequency span a wavy measurement line (trace) with 201 frequency points is formed and continuously updated. The total Ingress Resistance frequency range extends from 88 MHz to 108 MHz.

MARKER INFORMATION AREA

The Marker Information area (area above the trace view area) displays information about the frequency currently selected by the active marker. The left side of the Marker Information bar area displays the RBW and VBW values. If Peak Hold is active, a Peak Hold icon is shown. The right side of the Marker Information area displays the marker frequency.

TRACE VIEW AREA

As multiple sweeps occur, the maximum level trace will change only if new sweep levels exceed the levels of the current trace. A gray trace shows you the current data when Peak Hold is on. If Peak Hold is turned on, it ensures that the highest amplitude at each frequency point over multiple sweeps is captured. The thick black vertical line is the active marker; the gray vertical line is the inactive marker and does not move.

Viewing Options

Several viewing options are available to assist you with data assessment. Press the VIEW softkey. Use the arrow keys to choose the menu item you prefer and press ENTER to make your selection.

Select Auto Reference to automatically view measurement results in the best reference setting on the graph (Keystroke shortcut: SHIFT 9). NOTE: For best reference setting results you may have to select the Auto Reference button more than once (up to three times).

Select 5 dB/div or 10 dB/div to adjust the vertical resolution of the graph for the best viewing.

Select (or deselect) Peak Hold to turn on and off the Peak Hold function, which persists the highest level trace at each frequency for improved noise isolation.

Select (or deselect) Reset to manually reset the Peak Hold function.

Select Pause to suspend measurement updates (Keystroke shortcut: SHIFT 8).

Use the arrow keys to select Marker A or Marker B as the active marker, then press ENTER. Use the Left and Right Arrows to move the marker.

MARKER STATUS AREA

The Ingress Resistance measurement mode also contains an area referred to as the Marker Status area (area below the trace view graph area). This area consists of the marker name, carrier frequency (in MHz), and measured signal level for the frequencies which the markers are on. The black square around the letter A or B below the trace graph shows the active marker. The peak hold levels and the delta value (in dB) between the peak hold levels are also displayed. If Peak Hold is turned off, the live levels and the delta value (in dB) between the live levels are displayed.