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Although PASSPORT has a comprehensive
warning system and this handbook is as
complete as we can make it, only experi-
ence will teach you what to expect from
your PASSPORT and how to interpret what
it tells you. The specific type of radar
being used, the type of transmission
(continuous or instant-on) and the location
of the radar source affect the radar alerts
you receive.
The following examples will give you
an introduction to understanding
PASSPORT’s warning system for radar and
laser alerts.
Explanation
You are approaching a continuous radar
source aimed in your direction.
An instant-on radar source is being used
ahead of you and out of your view.
An instant-on radar source or laser source is
being used nearby. This kind of alert
requires immediate attention!
Laser is being used in the area. Because laser
is inherently difficult to detect, any laser
alert may indicate a source very close by.
A moving patrol car with continuous radar is
overtaking you from behind. Because these
signals are reflected (reflections are
increased by large objects), they may or may
not eventually melt into a solid point even
when the patrol car is directly behind you.
You are approaching a radar unit concealed
by a hill or an obstructed curve.
Alert
PASSPORT begins to sound slowly, then the
rate of alert increases until the alert becomes
a solid tone. The Signal Meter ramps
accordingly.
PASSPORT emits short alerts for a few
seconds and then falls silent only to briefly
alert and fall silent again.
PASSPORT suddenly sounds a continuous
tone for the appropriate band received. All
segments in the Signal Strength Meter are lit.
A brief laser alert.
PASSPORT receives weak signals. These
signals may be a little stronger as you
pass large, roadside objects. The signals
increase in frequency.
PASSPORT alerts slowly for awhile and then
abruptly jumps to a strong alert.
Interpreting Alerts
Summary of Contents for Passport 9500i
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