I think you must be referring to the Personal Icon he has in his Wargear. This is an old piece of gear that used to function under the last Codex but was not carried forward into the new rules. At the current time of writing, it does nothing and has no effect on the game.
In the past it used to function as a kind of 'homing beacon' and allowed reserves to become more accurate if they tried to land near him. However as said, this is no longer the case, and it certainly has nothing to do with the price of Berzerkers.
You might as well ignore that part of his Wargear because it no longer does anything.
EDIT: Incidentally, this was posted in the wrong section of the forum. Next time you'll want to put it into 'You make da call' which serves as the dedicated rules bit.
(For all others, his rules are available for free on the
FW Website. Page 4)
http://www.forgeworld.co.uk/Downloads/Product/PDF/c/Characters.pdf