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Hi my name is mat. i have a cobra xrs9690. and anytime an emergency vehicle is by me my detector doesnt go off. and if a cop goes past me the ka-band beeps up to about level 2 or 3 and then goes away. is my detector defective or just crappy?

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Hi. Radar detectors do not sound whenever a police car or emergency vehicle is nearby. They only work if the police officer is using radar, and if he's within the range of your detector. Many states now use "LIDAR", which isn't detectable by many radar detectors.

Posted on Mar 14, 2011

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Cobra manuals


Mute shuts off sound warning of radar, The left top button is for dimming the display, the right top button is for city or highway selection, the C light comes on in CITY mode to reduce microwave interference X/K and Ka are radar indicators. L is for laser. The bars at the bottom show the strength of the signal. VS is a radar detection detector or warning of an emergency vehicle.

Aug 03, 2014 | ESD777 Esd 777 12-band Radar Detector -...

1 Answer

What do codes on Cobra radar detector mean?


Here are some answers:
if its like most, x means dont worry unless your in hicksville alabama and the
cops steal their radars off the grocery store doors, k and ka means cop
when L goes off, it\'s most definitely a cop. L basically means "You\'re already
screwed, hurry up and pull the radar detector off your window to lessen the blow
there is no Sa on mine, just S which means strobe for emergency vehicles. mine S
hardly ever goes off, the X however goes off all the time

Jan 13, 2013 | Cars & Trucks

1 Answer

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).

Finally, L indicates detection of a LASER based velocity detector.

Jan 05, 2011 | 12-Band Radar/Laser Detector

1 Answer

I wanted to know what the symbols meant when they go off.


Ok X, K, and Ka are the type of radar bands the officers radar gun admits. The V is shown when an officer's gun can detect certain radar detectors. The S is a safety alert when emergency vehicles are near. BTW here is a link to a PDF manual that should be similar to your model. http://www.cobraelec.com/downloads/manuals/ESD9110_manual.pdf

Oct 14, 2009 | ESD 9117 Radar Detector

2 Answers

Radar detector codes


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

Aug 28, 2009 | XRS 9330 Radar Detector

1 Answer

Undersatanding the 12 bands of cobra xrs 797


Its all marketing hype. Cobra breaks up the three X, K and Ka bands into sub-bands, and they do the same for the single 904nm laser wavelength. There are no sub-bands for X or K band. In the USA, Ka band radar guns operate on three Ka band frequencies: 33.8, 34.7 nd 35.5 MHz. Cobra also breaks up the single laser band based on the known pulse rates of various laser gun models. Yet in general if you get a laser alert from a nearby cop then likely you have been tagged and will be getting a ticket.

Apr 13, 2009 | XRS 797 Radar Detector

1 Answer

Reading the radar detector


These are just the frequency ranges, or "bands" that your detector is detecting the frequencies...

X, K, Ka (Kappa-Alpha) are different bands of frequencies.

Mar 12, 2009 | XRS 9440 Radar Detector

3 Answers

Radar detector


the higher the number the stronger the signal.

Jun 06, 2008 | Vehicle Parts & Accessories

3 Answers

I have a cobra radar dector esd 737 and i sdoesnt pick up cops tell they are like not even a half a mile ahead of you and tips or ideas how to get it to work better


Detecting of radar or lidar emissions depends on mounting of detector.In My experience it is best to mount it just above windscreen wipers.You must check if your detector is visible from license plate level. This is important for laser detection. For other measuring devices it's only important to be visible.Higher mounting facing downwards will reduce false X and K/Ka signals.It will reduce detecing of true as well, so it is all up to you.You must know that laser detecting only covers your car.It d'ont matter if a cop is 300m or 1800m away.X band has a large emission, and it is easily detected.K/Ka band is a pulse emitting and has a lot narrow detecting point.It is effective at max 800m.In ether case speed can be reduced 20-30 km/h in city, and 30-50 km/h on highway.

Apr 25, 2008 | ESD 7000 Radar Detector

2 Answers

Radar codes


VG-2 is a technology that police use to detect radar detectors. Detectors with this feature will detect when VG-2 is in use, and alert you to its presence.

AND

the x,k,ka codes you see flashing are......

X, K, and Ka Superwide are the radar bands that are used by police radar guns. X band was the first band used for by radar guns, but is now the least used. All radar detectors that we carry detect all 3 of these bands.

quoted by a professional at the Cobra industries for radar detectors, cb radios and electronics galore.
for more info see www.cobra.com

Apr 20, 2008 | XRS 9330 Radar Detector

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