A friend on the outside could then use the geolocation data from the analocator and drone deliver supplies at night. The contestants turn the camera off at night and the secret delivery wouldn’t have to be anything overt that would be easily noticeable post-delivery.
Contestants are allowed to bring ten items to the location with them. Part of the show is deciding which items to bring and which items to go without - skipping a fire starter or a water bottle, for example. But this way they could drone deliver a few of those small items they skipped out on.
I’m talking about this show, for anyone unfamiliar: Alone - Wikipedia
If there is no checking in place, like an airport security check and/or check for devices emitting radio waves. Also, the producers know where the candidates are at, don’t they? If they spot regular drone flights in the area, I think the game will be up as well.