MX280001A Vision™ Remote Spectrum Monitor Software : Radio (Option 400) : Radio Capture Program
 
Radio Capture Program
Click the Radio measurement icon to display the user interface shown below in Figure: Radio Menu.
Radio Menu
Radio Menu Bar
The Radio menu bar is shown in Figure: Radio Menu Bar and described in Table:  Radio Menu Bar Description.
Radio Menu Bar
 Radio Menu Bar Description
Menu
Description
File
Open Database
Opens the database folder that has been set from “Set Database Root Folder”.
Set Database Root Folder
Opens the database folder set the “Set Database Root Folder”.
Recent Databases
Click to display the most recent databases used.
Exit
Exit the File menu.
Map
Load Map
Load a customer selected map to the screen.
Existing Maps
Load a map from an existing map folder.
Help
Help
See “Help Menu” on page 5‑3.
 
The AM/FM Measurements menu provides a way to:
• Sweep a range
• See the sweep trace
• See a peak in the trace
• Click on the peak to select the frequency for the audio streaming
• Set Reference Level (dBm) using the scroll reference level selector
You select a start and stop frequency for the trace graph. Click the 'Play' button starts sweeping that range and you see the traces in the graph. When you see a peak you are interested in, you stop sweeping and float your mouse over the graph display, which scrolls the graph as a green marker, and click on the peak that sets the frequency (box above the graph) to the peak position. The bandwidth (span) for the IQ capture and audio streaming are automatically set by the type of audio signal (AM, FM, or NBFM).
If the user knows the frequency of the signal they are interested in, they can skip this step altogether and just type the frequency in the box provided. The graph is used to select a peak (frequency) to test (either FM deviation, AM modulation, or Streaming audio). However, the user can enter it from the keyboard and not use the graph. The graph will typically have a much wider span than the bandwidth of the signal you want to test, and the signal is unlikely to be at the center frequency of the graph.
Example
If you are interested in streaming a radio station from the US FM broadcast band, set the Start and Stop frequencies to 88 MHz and 108 MHz. That is the FM band. Then you can sweep and see that there are quite a few peaks in the trace data, each representing a particular radio station. If you want to listen to one of them, you click on the peak, 106.5, for instance. That frequency is then set as the test frequency. Doing the measurements or streaming will use the bandwidth of the signal type selected, not the full span of the trace graph.