Cobra Electronics ESD 9290 - Manual (Page 10)

English 14
Detection
Your Detector
Intro Operation Customer
Assistance
Warranty
Notice
Main Icons
Secondary Icons
Nothing Comes Close to a Cobra ® 15
Understanding Radar and Laser
Your Detector
Intro Operation Customer
Assistance
Warranty
Notice
Main Icons
Secondary Icons
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
or VG-2 nearby.
Exercise caution
Tone instantly begins
repeating rapidly.
Radar or VG-2 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
A Safety or Strobe Alert. You are nearing an
emergency vehicle.
Exercise caution
Responding to Alerts 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
VG-2 is a “detector detector” that works by detecting low-level signals emitted
by most radar detectors. Your detector does not emit signals that can be detected by
VG-2, but does detect VG-2 signals and will alert you when 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 an emergency vehicle.
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 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.
ESD9290_MANL.indd 14-15 12/15/09 3:01 PM