RE: Jammers
" The jammers Mr. Brown convoy us to jam wireless and cell phones is only good for several hundred feet not two miles. "
Interesting thought: We've been assuming an avionics malfunction alone - what about a one-in-a-million coincidence of a loose shield ground somewhere on the a/c and a malfunctioning or mal-adjusted jammer nearby?
Some of the jammers are actually quite powerful and their antenna array is a reasonable facsimile of a regular cellular tower (although designed for much higher power levels), which means it's lobed for horizontal radiation rather than vertical radiation. Tipping it a few degrees could easily put the beam at 600 agl...