Link Profile

Clear the program by selecting FILE - NEW NETWORKS to get a fresh start on this example.

Basic Map
As with coverage mapping, we have to start by creating a map of the area where the units are located. Go to FILE - MAP PROPERTIES on the menubar. Pick a Centre for the map using one of the options provided. Also select the size of your map in pixels and the kilometer height of the projection. My example settings are as follows:

This will draw a 200x200 map centered on Winamac IN that is 100km square. (As before, SRTM data will be downloaded to create the map.)

Setting Up the "Units"
Go to EDIT - UNIT PROPERTIES on the menubar. Define the two units by name and enter the coordinates. For this example I have created the following two units:
Next, go to FILE - NETWORKS PROPERTIES on the menubar. Here you will define the network that the units (the source and the target) are in. Name your network (if you want to) and select the proper frequency range.

Then click on SYSTEMS. Enter your unit as System 1. Enter all the information that you can to keep the results accurate. As before, you can save the system to your radiosys.dat file for later reuse. My Example:

Since the transmit and receive are similar systems we don't have to create a second system. The next step is to click on MEMBERSHIP. Check the box next to both the source and the target and make sure both are linked to the system as defined.

When you are done click apply. The link is shown on the map.

Seeing the Link Path
Select VIEW - RADIO LINK. The default settings will bring up the source and target, or you can select them.

You can also adjust the height of the antenna to obtain line of sight. Selecting a point along the path will show the clearance or obstruction at that point.

On the EDIT menu of the Radio Link display you can "copy" the image for pasting into another document. (Unfortunately the copy doesn't include the text describing the link.)

Exporting the Link Path
On the EDIT menu of the Radio Link EXPORT TO ... will export the path to a text file (Notepad) or to the RmPath program included with Radio Mobile.

Click Apply and choose a filename for the export and RmPath will open with the path shown. The default of the RmPath program is to point to the least clearance or the deapest obstruction.

Note that the transmitter information is not transferred to RmPath.
RmPath can be opened separately from Radio Mobile Deluxe for viewing saved paths.

Next: Showing Path coverage on a Map


James Bellaire @ CRTech