The SINCGARS would be a very short dwell time you would not see lines like that. it would be thin lines in a psuedorandom sequence. not sure what you are using but I see them clear as day on my FDM-S2
But today was pretty active I saw quite a bit of short dwell hop activity, and picked up a simplex wide fm transmission as well. (ie guys pinned down, asking for fire support etc..)