Pioneer DEH-P1Y Operation Manual page 17

Section
Tuner 04
# To turn local seek tuning off, press
Multi-Control again.
3 Push Multi-Control left or right to set
the sensitivity.
There are four levels of sensitivity for FM and
two levels for AM:
FM: Local 1Local 2Local 3Local 4
AM: Local 1Local 2
The Local 4 setting allows reception of only
the strongest stations, while lower settings let
you receive progressively weaker stations.
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