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What is Ka signal in my laser rader? - Computers & Internet

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In 1983 the U.S. FCC allocated the spectrum from 34.2 - 35.2 GHz (Ka band) for traffic radar use, that same year Ka band photo (Across the Road) radars started appearing in the United States. Nine years later in 1992 the FCC expanded the Ka band spectrum allocated for traffic radar use to 33.4 - 36 GHz.

Ka band radars typically have more narrow beams than X or K band radars. Target detection range depends on moisture in the atmosphere (rain or humidity), the more moisture the less range.

Posted on Oct 02, 2010

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What does K1 mean?


The letters X, K, and Ka designate radar frequency bands used by radar based speed monitors. The letters correspond to designations given by Federal Communication Comission (FCC) frequency bands reserved for speed monitor equipment.
  • X band - 10.525 GHz
  • K band - 24.150 GHz
  • Ka band - 33.4 ... 36 GHz
The number (range is 1 ... 5) is the radar signal strength, where 1 indicates weakest signal (you are still at some distance, or maybe false alarm) while at 5 you should be able to see the white in the eye of the cop holding the radar gun.

The letter V indicates the detection of a "Detector Detector". Devices like the Cobra are illegal in some countries and police has counter-measures available to detect some radar detectors. The maker of the Cobra states, their products go unnoticed but that won't help you if highway patrol sees the thing sticking on your windshield.

The letter S indicates hazard warnings (like train crossings).

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Found Whistler Spirit Triband radar detector in my basement. I drove with it and it seems to work; it beeps near radar police and randomly displays a P or C or H or 1 or 7. What do all those things mean?


That model only picks up X , K and the photo radar portion of Ka band, It doens't pick up the full Ka radar guns out there plus it doesn't pick up laser.

H= Highway mode
C= City mode
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The numbers indicate signal strength - higher the number the stronger the signal.

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What do the the symbols Ka, K, X, L, and SWS mean on a radar detector


These symbols refer to the frequency of the radar gun's signals that are used to detect your speed. L is for laser, x, k and Ka band have designated frequencies that they use for radar traffic control. They range from around 10GHz. to 30 GHz. if my memory serves me.
A typical microwave oven operates at 2.5 GHhz or so.

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When any detector "detects" radar, it will produce some form of Audiable sound. If someone is speeding, they need to slow down IMMEDIATELY if they want to avoid a ticket. It doesnt really matter if the radar gun is x, k, ka, ku, etc. You will probably get a ticket if you dont slow down.

Most dectectors will have indicators lights or displays that indicate the x, k, ka, etc., radar signals are actually being detected. This can provide SOME useful information. THe letters simply designate BANDS of frequencies that are used to send the radar beams. It is similar to changing the channel on a radio - k and ka bands use HIGHER frequencies for their radar signals.

X band is the oldest radar band and it is used for police radars AND door openers at supermarkets and other locations. If you drive by a supermarket, your radar detector is likely to go off and it is almost certainly going to be X band. CHeck it out next time you drive by a supermarket with an automatic door opener.

Since the police and the radar companies like to play cat and mouse, newer radar bands have been invented that OBSOLETE the older radar detectors. When the K bands showed up in the police radar guns, the radar detector folks had to have a new product offering that would detect X band and K band. And the race continues to go on even today and now, there are LASER police speed detectors and the new "RADAR" detectors now need LASER detectors as well. If you want to know the exact frequencies of these "bands" (K, Ka, etc), let me know and I will send them to you. But they are operating in the tens of GigaHertz regions.

THX

r

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LRD6399SWS


LED Display gives you your display visual alerts, signal strength, and operation mode. Here is an attached link for the manual.....http://www.uniden.com/pdf/LRD6399SWSom.pdf
But to answer your question here is what the difference between the green light and the red light are:
1. X-Band Signal Indicator—A green LED lights and blinks to
indicate the presence of an X-band radar signal. The blink rate
increases as the radar source gets closer. A distinct audio alert is
also heard.
2. K-Band Indicator— An amber (orange) LED lights and blinks to
indicate the presence of a K-band radar. The blink rate increases as
the radar source gets closer. A distinct audio alert is also heard.
3. Ka-SuperWideband Signal Indicator— A yellow LED lights and
blinks to indicate the presence of a Ka-SuperWideband radar
signal. The blink rate increases as the radar source gets closer. A
distinct audio alert is also heard.
4. Laser Signal Indicator— A red LED under L lights and blinks to
indicate the presence of a laser signal. A distinct audio alert is also
heard.
5. SWS Signal Indicator— When an early warning hazard or
informational signal is detected, the yellow SWS LED begins to
blink and the amber K-band LED lights. A distinct audio alert is
also heard.
6. Power-On Indicator— A green LED under P lights to indicate
power is being supplied to the unit and the unit is turned on.
7. LED Signal Strength Meter—Four LEDs give an accurate visual
indication of the strength of radar or laser signals.
8. City Mode Indicator—A green LED under C lights to indicate
that you selected City Mode.
9. Auto Mute Indicator— A red LED under M lights to indicate that
you selected the Auto Mute feature.

Please make sure you give me a rating and I hope this helps,
cbinny1



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Cobra laser 360 11 band


Assuming the model number is COBRA XRS 9500CS 11-BAND RADAR/360*
LASER DETECTOR WITH DIGVIEW DATA DISPLAY
& VOICE ALERT

This is what we can find out about it.
DETECTS 5 RADAR SIGNALS: XBAND, KBAND, KA SUPERWIDE, VG-2 RADAR DETECTOR-DETECTOR, SPECTRE 1 RADAR DETECTOR-DETECTOR

DETECTS 4 LASER SIGNALS: LTI 20-20 LASER, ULTRA LYTE LASER, PROLASER, PROLASER III

2 SAFETY SYSTEMS: SAFTETY ALERT & STROBE ALERTS DIGVIEW DATA DISPLAY & VOICE ALERTS
http://www.fixya.com/support/p237601-cobra_xrs_9500cs_radar_detector/manual-313

I again assume the above model number......
Hope this helped some...
Kevin

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