Friday, March 12, 2010

Pathloss 5.0 : Create point to multipoint links

Create point to multipoint links

This procedure uses the point to multipoint point link design rules to create links from a base station to a defined set of remote sites. The links can be rejected based on path length, remote antenna heights, diffraction loss or fade margin.

There are several ways to control the number of remote stations to be connected:

· create a selection of the remote stations
· create a group of remote stations
· specify a radius from the base station.

The first two methods must be completed before starting the procedure.

Right click on the site legend of the central site and select the "create PTMP links" menu item. This site will become a base station.

Select the link sites method to either the group or selection or to sites within the specified radius. In the first case select the group or selection. In the second case enter the radius or click the blue button and then click on the network display to specify the radius.

Click the Link design button and set the design rules and parameters. If sectorized antennas will be used, these should be specified at this time. The design procedure will assign each remote to the best sector and will take the sector antenna pattern, azimuth and elevation angle into account.

Click the Display criteria button and select the display criteria and the associated color legend. Currently the available display criteria are antenna height, diffraction and fade margin. Note that for antenna height and diffraction, the equipment specifications are not necessary.

Refer to the general program operation section for setting up the color ramp. Any number of ranges can be specified; however, as only the link lines will be colored, choose distinctive colors for each range.

Click the Create links button. The links will be created and color coded according to the display criteria settings.

Click on a specific link to view the parameters. Specify the rejection criteria. Leave any unused criteria blank. Click reject links to hide the rejected links.

Once the final link configuration is determined. Click finalize links to create pl5 files for the links and register these on the display.

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