Radio Mobile Data Sheet

Radio propagation model

Title ITS Irregular Terrain Model (Longley-Rice)
Code Original FORTRAN code translated to C++ DLL
Frequency Range 20 to 20000 MHz
Surface Refractivity Range 250 to 400 N-Units
Antenna heights Range .5 to 2999m
Elevation records up to 158
Elevation Range -999m to 20000m
Climates
Equatorial Continental Subtropical Maritime Sub-Tropical Desert Continental Temperate Maritime Temperate Over Land Maritime Temperate Over Sea
Modes of variation
Spot Accidental Mobile Broadcast
Statitical parameters
Time Location Situation
Ground parameters
Conductivity Relative Permittivity

System parameters

Tx power 1.0E-8 to 1.0E+6 Watts
Receiver threshold 0.01 to 2000 ÁVolt
Line Loss 0 to 500 dB
Antenna gain -10 to 100 dBi

Networks

Number of networks up to 50
Number of units up to 1000
Number of systems up to 255
Topologies
Voice net Data net, Star Data net, Cluster
Link parameters
Tx Power Tx Line Loss Tx Antenna Gain Propagation Loss Rx Antenna Gain Rx Line Loss Rx Sensitivity

Elevation data matrix

Source Type
SRTM 1, 3 DTED 0, 1, 2 GTOPO30 GLOBE BIL
Source Resolution 1/3, 1, 3, or 30 Arcsecond
Matrix Size up to 2000 x 2000 records
Matrix Coverage up to 5000 km
Matrix Projection Rectangular (aligned to latitude and longitude) compressed horizontaly according to latitude
Interpolation Bi-linear