Before revision: The ability to receive multiple signals simultaneously is in some cases considered beneficial and is one reason that the aviation industry, and others, have chosen to use AM rather than FM for communications.
After revision: While the interference can be generated when multiple signals overlapp within the passband of an AM receiver, the capture effect can provide a soultion for coveraging large VHF- and UHF-Communication sectors for ATC or minimizing multipath interference, when 2f-ILS-LLZ and