Walter,
The first sentence of your Post 3216 would seem to come under the heading " Eggs (sucking) - lessons for Granny."
You are totally unable to accept that the equipment at the crux of your theory was NOT fitted to the aircraft and you ignore the fact that 2 avionics tradesmen worked in the avionics bay (where said equipment would have to have been installed) immediately prior to the departure of the aircraft on its fatal sortie without noticing anything unusual.
If the Pilots had agreed to carry out a "demonstration" of the equipment you describe on a passenger carrying sortie in the poor weather that had been forecast and in the certain knowledge that the equipment had NO Controller of Aircraft release for RAF use (let alone a Release to Service for use in the Chinook HC2) then all on this thread would have a united viewpoint in respect of the cause of the crash.
There is no evidence whatsoever - except in your imagination - of any such activity.