Description
Interpretation
Recommended
Response
Tone repeats slowly at first,
then speeds up rapidly.
Probably police radar.
FULL ALERT
Tone sounds one
time only.
Probably a false alarm,
but possibly pulsed radar,
VG-2, or Spectre I or IV+
nearby.
Exercise caution
Tone instantly begins
repeating rapidly.
Radar, VG-2 or Spectre I
or IV+ nearby has been
activated suddenly.
FULL ALERT
Tone repeats slowly as you
approach a hill or bridge, then
speeds up sharply as you
reach it.
Probably police
radar beyond the
hill or bridge.
FULL ALERT
Tone repeats slowly
for a short period.
Probably a false alarm.
Exercise caution
Any type of laser alert.
Laser alerts are
never false alarms.
FULL ALERT
Any Safety Alert.
You are nearing an emergency
vehicle, railroad crossing,
or road hazard (construction,
accident, etc.).
Exercise caution
Understanding Radar and Laser
Your Detector
Nothing
Comes Close to a Cobra
®
19
Understanding Radar and Laser
•
Radar Speed Monitoring Systems
Three band frequencies have been approved by the Federal Communications
Commission (FCC) for use by speed monitoring radar equipment:
X band
10.525 GHz
K band
24.150 GHz
Ka band
33.400 – 36.00 GHz
Your detector detects signals in all three radar bands, plus Ku band (13.435 GHz), which is
an approved frequency used in parts of Europe and Asia.
VG-2 and Spectre I & IV+
VG-2
and
Spectre I & IV+
are radar detector detectors (RDDs) that work by
detecting low-level signals emitted by most radar detectors. Your detector does not
emit signals that can be spotted by VG-2 and Spectre I RDDs. However, your detector
can
be spotted by Spectre IV+ RDDs. Your unit detects signals from these or similar
devices and will alert you when such
a device is in use near your vehicle.
Safety Alert Traffic Warning System
FCC-approved
Safety Alert
transmitters emit microwave radar signals that indicate the
presence of a safety-related concern. Depending on the frequency of the signal emitted,
it can indicate a speeding emergency vehicle or train,
or a stationary road hazard.
Because these microwave signals are within the K band frequency, most conventional
radar detectors will detect Safety Alert signals as standard
K band radar. Your detector, however, is designed to differentiate between standard K
band and Safety Alert signals, and give separate alerts for each.
Safety Alert technology is relatively new. Safety Alert transmitters can
be found in limited numbers in all 50 states, but the number is growing. Depending on
your location, you may not receive these alerts regularly
and may often encounter emergency vehicles, trains and road hazards
without being alerted. As the number of transmitters increases,
these alerts will become more common.
When you receive such an alert, please watch for emergency vehicles ahead
of you, on cross streets and behind you. If you see an emergency vehicle approaching,
please pull over to the right side of the road and allow it to pass.
Detection
Your Detector
English
Instant-On Detection
Your detector is designed to detect
Instant-On
speed monitoring signals, which can
suddenly appear at full strength.
NOTE
You should take appropriate action immediately
whenever an instant-on alert is given.
Responding to Alerts
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