In cases of diminished range due to antenna length or installation problems...
sometimes you get a glitch, sometimes not. Sometimes you can get one back by
re-orienting the transmitter compared to the plane, sometimes it's just gone.

Assuming all equipment is in "as-new" operating condition, and installed properly...
unless you're using binoculars or onboard video, you'll lose good visual of it, well
before you'll ever lose radio range, in the first place.