Mobile InterferenceHunter Help : Display Layout : Signal Display Windows
Signal Display Windows
There are four signal related display windows: Power vs. Time, Instrument Trace Display, Real-time Power Meter and Power Scale.
Power vs. Time
Power vs. Time Display
Run Mode
During run mode, Power vs. Time displays the power levels in sequential time order with the time sequence starting at the left and the latest reading on the right. The signal with the highest power level is highlighted in bright yellow. When the window is full, the signal bars will reduce in width so that the entire collected data is always visible. The horizontal cross hair is another visual indicator of the amplitude of the highest signal level. Data to the Power vs. Time display updates about 1 time per second.
Pause Mode
Place the MIH program in Pause Mode to review the data collected. Click on a signal bar and the vertical cross-hair will move to that position. On the map, the Green Car will move to the breadcrumb associated with that signal bar and the Power Level, Longitude, Latitude and Counter 1 information will be displayed. Place the cursor on the Power vs. Time display area and right click the mouse. A pop-up menu is displayed with the following selections to assist you in reviewing the collected data.
Peak Search: Places the vertical cross hair on the highest level signal bar and the Green Car on the breadcrumb on the map with the highest signal level.
Delete Inactive Measurements: Deletes older measurements up to the last 300 measurements. MIH uses the last 300 measurements to pinpoint the interferer as you drive closer to it.
Delete Selection: During data collection, large amounts of insignificant data could be collected filling the Power vs Time display with not useful signal bars. Delete Selection allows you to remove signal bars not useful in determining the location of an interferer. Click on the left most signal bar of the group of signal bars to delete. Drag the cursor to the right of the unwanted signal bars, click the right mouse button then click Delete Selection on the pop-up menu. The highlighted section is deleted.
Trim to Selection: You can select and keep a section of the signal bars collected. Click on the left most signal bar of the group of signal bars to keep. Drag the cursor to the right of the signal bars to keep, click the right mouse button then click Trim to Selection on the pop-up menu. The signal bars surrounding the highlighted section are deleted.
Delete All: Removes all of the signal bars from the Power vs. Time display and all data from the active data set. Right click the mouse to open the pull down menu. Click Delete All.
For both Run Mode and Pause Mode, light yellow signal bars and short black hash marks are displayed. The light yellow signal bars are a result of crowding. As more signal bars are added to the display, some will overlap creating a light yellow signal bar. The short black hash marks indicate the actual values used in calculating the position estimate.
Instrument Trace Display
Instrument Trace Display
Press the Display Instrument Trace button in the Toolbar to toggle this window on and off. It is off by default and not visible unless you turn it on. The placement of the spectrum analyzer instrument may not be in a convenient location for viewing when interference hunting. The Instrument Trace Display allows you to view the signal within the Mobile InterferenceHunter window. This window will update approximately once per second.
To view a larger version of this trace, double click on the Instrument Trace Display and the trace on the instrument will display in the Drive Map Display window. The purpose here is to observe and analyze the trace in a larger view. Therefore, no mapping or mapping data collection occurs. You may continue to drive if desired. This window will be updated approximately 4 times per second. Click on the Drive Map Display window once and the Drive Map will return and mapping data collection resumes. This feature slightly affects the frequency of updates of the Power vs. Time bar graph and audio tones if turned On.
Instrument Display in the Main Window
Real-time Power Meter and Power Scale
Real-time Power Meter and Power Scale
This signal Real-time Power Meter updates are limited by the instrument sweep time and is available to see immediate power levels. Since the data collection rate is slower, this is useful to observe the actual received power level without waiting for the screen to update with a new point saved to the active data set. The current power level correlates with the color power scale to the right.
The power scale displays the current color coding for the active data set. This color coding is used in coloring the breadcrumbs on the screen. The color scale changes as you accumulate data. The scaling in this window also indicates the power scale used in both the real-time Power Meter and the Power vs. Time bar graph as well as the color for the breadcrumbs.