Geostationary Satellite

Calculate urban satellite coverage from a geostationary communications satellite.

Model Type

The geometry is described by an urban database, see Figure 1. The urban database was preprocessed in WallMan to determine the visibility relations. Due to preprocessing, prediction resolution and prediction height cannot be changed in ProMan.
Tip: Database preprocessing saves time if the same database is to be used in different models.

Figure 1. A 3D overview of the indoor database.

Sites and Antennas

The model has a geostationary satellite positioned at a height of 36000 km and a longitude of 10 degrees. The antenna is transmitting a signal at 2 GHz. The effective isotropic radiated power (EIRP) is 95 dBm. This is the sum of the transmitter power (set to 50 dBm) and the antenna gain of 45 dBi in the direction of interest.

Tip: Click Project > Edit Project Parameter and click the Sites tab to view the sites and antennas.

Computational Method

The computation method is set to 2x2D - 2D Horizontal Plane IRT (combined with 2D vertical-plane knife-edge diffraction).
Tip: Click Project > Edit Project Parameter and click the Computation tab to change the model.

This computation method treats the propagation in the horizontal plane by using ray optical methods (for the wave guiding, including the vertical wedges). The diffraction at roof edges is computed with knife-edge diffraction.


Propagation results show at every location the power received from the transmitting antenna by a hypothetical isotropic receiver. The transmitter is located south of the city as the buildings cast shadows northward.

Figure 2. Power coverage of the satellite - antenna 1.