Land Mobile Radio Analyzer and Coverage Measurement Guide : PTC-ITCR Analyzer (Option 721) : Measurement Menu
 
Measurement Menu
Key Sequence: Measurement
PTC-ITCR Analyzer Measurement Menu
 
 
PTC Analyzer: Opens the Display Menu.
 
 
 
 
PTC Coverage (Option 722 required): Opens the PTC Coverage menu. Refer to LMR Coverage Mapping.
 
Display Menu
Key Sequence: Measurement > PTC-ITCR Analyzer
PTC-ITCR Analyzer Display Menu
Active Graph: In Four‑Screen view (maximized), use this submenu key to select which of the four graphs is active. The current active graph is underlined (1 2 3 4), and the graph has a red perimeter line in the sweep window. Any of the four graphs can also be made active by tapping once on the graph in the touch screen. Repeatedly pressing the Active Graph submenu key will cycle the active graph, 1 through 4.
In Standard view (one graph displayed on the screen – refer to Maximize Active Graph key) the Active Graphic key rotates active focus among the four graphs that are displayed in the Four‑Screen view.
Maximize/Minimize Active Graph: The submenu key toggles between displaying the Four‑Screen view (four graphs) and the Standard view (one graph, maximized). Tapping twice on a selected graph also toggles between the two display options.
Graph Type
The label on the bottom of this key displays the current active graph type. Pressing the key opens a list box of the graph types available for PTC Analyzer measurements. Select the desired graph type with the Arrow keys or rotatory knob, and then press Enter. The current, active graph will be replaced with the new selection.
Available graphs include:
Constellation
Spectrum
Histogram
Eye Diagram
Linear Constellation
Summary
Refer to PTC-ITCR Analyzer Graphs for additional information.
Power Display
Continuous Burst
Depending on their configuration, PTC-ITCR radios emit signals as either a continuous data stream or a burst/packet stream. Pressing this submenu key toggles between Continuous or Burst power measurement mode. In Continuous mode, Received Power is calculated as the integrated power over time. In Burst mode, Received Power is calculated only when the data stream contains packets.
Note: Selection of Continuous mode when analyzing burst/packet signals produces artificially low values for Received Power. The magnitude of this error is a function of the burst/packet duty cycle.
Symbol Span
Use this menu to adjust the number of symbols viewed across the screen in the Eye Diagram graph. Adjust from 2 and 5 using the keypad, the arrow keys, or the rotary knob. Keypad values entered outside of this range are ignored.
Back
Returns to the Measurement Menu.