Thanks for adding the clarification about TA mode.

If I may suggest a small alteration which would have made me sure that
FAQ entry would solve my (slightly different) problem. It now says:

Some users have experienced a problem where their antenna raises correctly when they switch to the radio, but it does not lower when they switch back to MP3 mode.

but to cover my case, it should say:

Some users have experienced a problem where their antenna raises whenever the empeg is switched on, or raises correctly when they switch to the radio, but it does not lower when they switch back to MP3 mode.