Thanks for the information on the inherent difficulties of detecting the signals from these boxes.
Placing them in the vertical stabilizer seems like a good idea. I think the authorities may have to look at redesigning the whole Sonia detection signal, strength and relocation of the BB's etc.
There has to be a better way than the installation and location, than at present.
Are we all going to have to wait for the next prang, in order to try and find out what may have happened in this tragedy?