[yunohn]

The scenarios being compared are:

- Fob in hand

- Fob in hand, held against head

Both of these already fulfill your “near body” requirement. Your point around tuning would not explain the specific difference being questioned.

[sandos]

I always did hold the fob close to my palm (with the keyring parts between my fingers) and pointing the fob "up", hopefully aligning a whip in there. It does work better this way, and I can also hold it high up. My theory was that my hand acts as a ground-plane.

[Johnythree]

Different body positions are going to affect the antenna tuning differently.

And of course different surroundings will also effect the directivity (eg the radiaton pattern).

So some will give better results than others. Why is hard to understand?

[yunohn]

So your direct point is manufacturers have tuned fobs for best connectivity when held /against the user’s forehead/? I must’ve never seen the user manuals…