> rejecting signals that (according to design specifications) they should easily be able to reject Please link to this specification. Because I've read the spe

> rejecting signals that (according to design specifications) they should easily be able to reject Please link to this specification. Because I've read the specification (TSO-C87), and it actually says nothing about required levels of interference rejection. Should it? Probably. But neither the FCC nor the FAA wrote it in.