Hi,

I have an elevation profile of 100 samples that should be returning a propagation mode of 'Diffraction', but instead its returning 'Line Of Sight'.

I set up this console project to demonstrate what I am seeing. It uses the published NUGET package from this repo.
https://github.com/AwkEng/ITS.Propagation.ITM.Test

The console app will return the following...

Return Code: 0
Warning Flag: 0
Model Loss: 175.5452883370104dB
Mode: LineOfSight <------
Free Space Loss: 125.67012774988537dB
Distance: 101km
Tx Effective Height: 355.2440923030821m
Rx Effective Height: 217.70467109188425m
Terrain Roughness: 471.1350908252857m