Psidar

Hard
Skill: Psidar (Per/Hard).
You can tell when psis are nearby, even when they’re not
using their powers. This ability is distinct from (and comple-
ments) Psi Sense (above), as Psidar cannot detect the use of
psi abilities and cannot be relied on passively. When you use
it, the GM rolls against your skill, minus range penalties
Hard
(p. B550) to the nearest psi, in secret. If the psi has a Mind
Shield (pp. 66-67), its level is applied as a penalty and he
resists with his Mind Shield skill. On a success, you learn the
information below and can use any ranged abilities against
him even if you cannot see him.
Successful use of Psidar 1 reveals that there is a psi nearby
– nothing more. You may target him with maledictions, but
you do not necessarily know whom you are attacking. Psidar 2
reveals his direction; you may also follow up with a second skill
roll (with no range penalties) to determine what powers the psi
knows. Psidar 3 reveals the precise location (distance and
direction) of the psi, as well as allowing a follow-up roll for
more information. Psidar 4 provides the exact location of the
psi and details about what powers he knows with a single roll.
Additional rolls (with no range penalties) can then be made for
each power, to determine which specific abilities he has.
Statistics: Detect (Psis; ESP, -10%; Lock-On, +50%; Vague,
-50%) [9]. Further levels remove Vague [14], then replace Lock-
On with Precise [19], and then add Analyzing [29].