Boeing is not abusing anything - they just published a study on the models of altimeters that were sold with their planes, in specific configurations. Similar s

Boeing is not abusing anything - they just published a study on the models of altimeters that were sold with their planes, in specific configurations. Similar studies are performed by Airbus, Bombardier, Dassault, Cessna, etc. etc. And FCC rules only specified transmission frequency of radar altimeters, and radio is analog and perfect filtering is close to impossible (especially with the kind of chirping signal radar altimeters use, where whole 200MHz of spectrum is spanned in single chirp)