In article ,
wrote:

Anyone have a reference for a requirement to identify an ils or vor
prior to it's use in the USA?
Secondly, is there any reference to the type of identification
required? For example, would checking that the primary flight display
is displaying the correct identifier suffice? Or is there a
stipulation for morse code audible type of identification?

Stan

I can't cite chapter and verse, but I never bother listening to the morse
ident any more. The GNS-480 decodes it for you and displays the letter
code. I can't see any possible failure mode where the display would be
wrong but I would be able to correct it by listening myself.