Thanks for reply !
I supposed that VLF contacts are not very accurate in bearing, well it's just physics... Now I have to think if we can and should emulate this in DW in some way and how seriously... :hmm: the lowest possible signal in DW is 50Hz, how accurate can it be... yes I know you can't answer
I'm just scraping my head... and have to dig out how reporting accuracy, Min/Max Beam Width and bearing error curves for database sensors work...