i use ortovox for 3 years, 100percent sattisfied, i tried several boxes, mammut barryvox opto 3000/ dual antena/- great piece, never have a problem, mammut barryvox pulse/ the best box for me/, dsp pieps, ortovox x3, d1, patroller,... and the latest S1. all are really good for earth work, i tried BF no difference, better to say Pulse and S1 are better.
little about soft in BF, hahhahahahha, it s antena that works on 457Mhz no soft in the world couldn change the way of waves of same frequency. remember one thing all those boxes i mentioned are build for saving humans so....